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Item 7C TIA Study0 Traffic Impact Analysis CISD Elementary School North White Chapel Boulevard Southlake, Texas Prepared for: Hart, Gaugler & Associates, Inc. January 2010 O Kimley-Horn and Associates, Inc., 2010 061273203 EM " Kimley-Horn M and Associates, Inc, Traffic Impact Analysis CISD Elementary School North White Chapel Boulevard Southlake, Texas Prepared for: Hart, Gaugler, & Associates, Inc. Prepared by: ❑� ❑ Kimley-Horn � and Associates, Inc. 801 Cherry Street, Unit i l Suite 950 Fort Worth, TX 76102 817.335.6511 January 2010 © Kimley-Ham and Associates, Inc,, 2010 061273203 jEFFREY,A ,^WHITACRE 102469 Kimley-Horn and Associates, Inc. Table of Contents EXECUTIVE SUMMARY iii I. Introduction.......................................................................................................................................1 A. Purpose..........................................................................................................................................................1 B. Methodology.................................................................................................................................................1 II. Existing (2009) and Proposed Land Use......................................................................................... 3 A. Site Location / Study Area............................................................................................................................ 3 B. Existing Development...................................................................................................................................3 C. Proposed Development.................................................................................................................................3 III. Existing (2009) Roadway System.....................................................................................................6 A. Thoroughfare System.................................................................................................................................... 6 B. Existing (2009) Traffic Volumes..................................................................................................................6 IV. Existing (2009) Conditions Traffic Analysis................................................................................... 9 A. Level of Service Evaluations........................................................................................................................9 B. Existing (2009) Thoroughfare Capacity Analysis.......................................................................................10 V. Build Out Year (2011) Background Traffic..................................................................................12 A. Build Out Year (2011) Thoroughfare System.............................................................................................12 B. Background Traffic Growth Rate................................................................................................................12 VI. Build Out Year (2011) Background Traffic Analysis..................................................................14 A. Level of Service Evaluations......................................................................................................................14 VII. Build Out (2011) Site Traffic..........................................................................................................15 A. Proposed Site Trip Generation....................................................................................................................15 B. Net Change in Trip Generation...................................................................................................................15 C. Trip Distribution and Traffic Assignment...................................................................................................16 VIII. Build Out Year (2011) Total Traffic Analysis.............................................................................. 20 A. Level of Service Evaluations...................................................................................................................... 20 B. Build Out (2011) Thoroughfare Capacity Analysis.....................................................................................21 C. Site Circulation............................................................................................................................................21 D. Emergency Access Driveway At Orchard Hill Drive.................................................................................22 E. Auxiliary Lanes...........................................................................................................................................22 F. Intersection Sight Distances.........................................................................................................................23 G. Headlights Exiting Main Driveway.............................................................................................................24 H. School Zones...............................................................................................................................................26 IX. Conclusions and Recommendations............................................................................................28 APPENDIX Traffic Impact Analysis i January 2010 CISD Elementary School; N. White Chapel Boulevard, Southlake, Texas EM" Kimley-Horn and Associates, Inc. List of Exhibits Exhibitl - Vicinity Map...............................................................................................................................4 Exhibit2 - Site Plan...................................................................................................................................... 5 Exhibit 3 - Existing (2009) Lane Use and Traffic Control Devices............................................................. 7 Exhibit 4 - Existing (2009) AM & PM School Peak Hour Traffic Volumes ................................................ 8 Exhibit 5 - Build Out Year (2011) Background AM & PM School Peak Hour Traffic Volumes..............13 Exhibit 6 - CISD Elementary School Projected AM & PM Inbound(Outbound) Directional Distribution 17 Exhibit 7 - CISD Elementary School Projected AM &PM School Peak Hour Traffic Volumes...............18 Exhibit 8 - Build Out Year (2011) AM & PM School Peak Hour Traffic Volumes..................................19 Exhibit 9 - Intersection Sight Distance — Left -Turn from Minor Road ...................................................... 25 Exhibit 10 - Overall Recommendations......................................................................................................29 List of Tables Table I _ Analysis Scenario Summary...................................................................................•......................1 Table 2 - Definition of Level of Service for Signalized and Unsignalized Intersections ............................. 9 Table 3 - Existing (2009) Unsignalized Intersection Analysis...................................................................10 Table 4 - Level of Service Criteria for Thoroughfare Capacity Analysis...................................................10 Table 5 - Existing Traffic Thoroughfare Capacity Analysis.......................................................................11 Table 6 - Historic Traffic Volumes.............................................................................................................12 Table 7 - Build Out Background (2011) Unsignalized Intersection Analysis............................................14 Table 8 - Build Out Background (2011) Roundabout Intersection Analysis..............................................14 Table 9 - Estimated Trip Generation Rates.................................................................................................15 Table 10 - Estimated Trip Generation — CISD Elementary School............................................................15 Table 1 l - Build Out (2011) Unsignalized Intersection Analysis............................................................... 20 Table 12 - Build Out (2011) Roundabout Intersection Analysis................................................................ 20 Table 13 - Build Out (2011) Traffic Thoroughfare Capacity Analysis....................................................... 21 Traffic impact Analysis li January 20 10 CISD Elementary School; N. White Chapel Boulevard, Southlake, Texas Kimiey-Horn and Associates, Inc. EXECUTIVE SUMMARY This report documents a traffic impact analysis performed for the Carroll Independent School District (CISD) Elementary School located west of N. White Chapel Boulevard between Dove Road and Sweet Street in the City of Southlake, Texas. Based on information provided by CISD and Hart, Gaugler & Associates, Inc., the CISD Elementary School site will be designed to accommodate approximately 700 students. The traffic evaluation was comprised of three (3) scenarios for which the AM & PM school peak hour level of service analysis was performed. All intersection analysis was completed using the Synchro 6Tm software. The scenarios are detailed in the table below. Analysis Scenario Summary Scenario Roadway Conditions Development Assumptions Traffic Volumes Existing (2009) Existing Existing Existing Build Out Existing + Improvements Existing + 2 years of Background (Roundabout at N. White Existing Background Growth (2011) Chapel Boulevard & Dove ° at 6 /o per year Road) Existing + Improvements Existing + 2 years of Build Out (Turn Lane on White Chapel Existing + CISD Background Growth (201 I) Boulevard and Roundabout Elementary at b% per year +CISD at N. White Chapel School Elementary School Boulevard & Dove Road) Traffic Impact Analysis iii January 2010 CISD Elementary School; N. White Chapel Boulevard, Southlake, Texas Kimley-Horn and Associates, Inc. Based on the analyses performed during this traffic impact study, we offer the following conclusions and recommendations (see also Exhibit 10): Existing (2009) Conclusions & Recommendations: Based on the analysis of existing conditions, all study area intersections currently operate at an acceptable level of service during the AM and PM school peak hour. Build Out Year (2011) Background Traffic Conclusions & Recommendations: Based on the analysis of the Build Out Year (2011) background traffic conditions the eastbound and westbound intersection approaches to N. White Chapel Boulevard along Dove Road experience slightly longer than desired delays. The installation of a roundabout is projected to improve the delay associated with several of the approaches of the intersection. Build Out Year (2011) Traffic Conclusions & Recommendations: Based on the analysis of the projected 2011 build out conditions, the intersection of N. White Chapel Boulevard & Dove Road approaches an unacceptable level of service as an all -way stop controlled intersection. This intersection is projected to operate at an acceptable level of service as a roundabout that is scheduled to be completed prior to the opening of the elementary school. Based on the anticipated school site distribution and volumes, a northbound left -turn lane from N. White Chapel Boulevard into the CISD Elementary School's Main Driveway should be provided. The northbound left -turn will start south of the Bus/Staff Driveway to provide for access to the Bus/Staff Driveway and continue to the Main Driveway. We recommend providing pavement markings and/or signage to assist drivers in understanding the one- way circulation of the student drop-off and pick-up. We recommend installing "No Parking Signs" along Orchard Hill Drive to prevent school pick-up and drop-off parking. Based on field observations, the CISD Elementary School Bus/Staff Driveway along N. White Chapel Boulevard will be constructed to provide adequate site distance. For the Main Driveway and emergency access driveway it is recommended that the vegetation/trees within the intersection sight triangle be removed. Install a school zone according to the TMUTCD (200 feet from the crosswalk or from the first driveway on school property, whichever is encountered first as traffic approaches the school) along N. White Chapel Boulevard. We recommend providing vegetation on the east side on N. White Chapel Boulevard immediately across from the Main Driveway to reduce the impact of the headlights on the home immediately across the street. A summary of recommendations is shown on Exhibit 10. Traffic Impact Analysis iv January 2010 CISD Elementary School; N. white Chapel Boulevard, Southlake, Texas - Remove the vegetation/tree within the intersection sight triangle. -Provide vegetation on the east s e of N. White Chapel Boulevard immediately across the street from the Main Drive to reduce the impact of the headlights on the home immediately across the street. (Build Out 2011 - CISD ) ELEMENTAL 1�0 ,,SCHOOL waQOK 9MAIN DRIVEWAY Ill O W kUSISTAFF DRIVEWAY) - Consider Removing the RCHARD HILL DR. vegetation/trees within the intersection sight triangle. (Build Out 2011 - CISD ) -Install No Parking Signs along Orchard Hill Dr_ to prevent pick-up STOCKTON DR and drop-off parking. (Build Out 2011 - CISD) WEST DOVE RD. - Install pvmt markings and/or signage to assist drivers in understanding the one-way counter clockwise circular operation of the student drop-off/pick-up. (Build Out 2011 - CISD ) - Install a school zone according to the TMUTCD along N. White Chapel Boulevard. N.T.S. (Build Out 2011- CISD ) - Installation of a northbound left -turn lane to serve the Bus/Staff Drive and the Main Drive. (Build Out 2011 - CISD ) J m - Installation of the proposed roundabout prior to the opening of the Elementary School. (Build Out 2011 - City) J LU Q 2 U W 2 2 H LY O Z EXHIBIT 10: Overall Recommendations ❑_ n ftley-Horn ti andAssodatu.ka Kimley-Horn and Associates, Inc. I. INTRODUCTION Kimley-Horn and Associates, Inc. was retained by Hart, GaugIer & Associates, Inc. to perform a traffic impact analysis for the proposed Carroll Independent School District (CISD) Elementary School located west of N. White Chapel Boulevard between Dove Road and future Sweet Street in the City of Southlake, Texas. The purpose of this study is to address the traffic and transportation impacts of the proposed development on surrounding streets and intersections. The specific objectives of this study are to determine the existing and future levels of service at the various study area intersections and recommend any capacity or operational related improvements. B. METHODOLOGY The traffic evaluation was comprised of three (3) scenarios for which the AM & PM school peak hour level of service analysis was performed. For the study area intersections, analysis was accomplished using the Synchro 6TM software. Table 1 provides a summary of the assumptions used in each scenario. Table 1 - Analysis Scenario Summary Scenario Roadway Conditions DevelopmentAssumptions Traffic Volumes Existing Existing Existing Existing (2009) Build Out Existing + Improvements Existing + 2 years of Background (Roundabout at N. White Existing Background Growth (20i 1) Chapel Boulevard & Dove Road) n at 6/o per year Existing + Improvements (Turn Lane on White Existing +CISD Existing + 2 years of Build Out Chapel Boulevard and Elementary Background Growth (2011) Roundabout at N. White School at 6% per year + CISD Chapel Boulevard & Dove Elementary School Road) Traffic Impact Analysis 1 January 2010 CISD Elementary School; N. White Chapel Boulevard, Southlake, Texas ©I• ❑ Kimley-Horn and Associates, Inc. A list of the intersections analyzed within the study area and their existing and proposed traffic control can be seen below. Existing (2009): Dove Road & N. White Chapel Boulevard (all -way stop) Build Out Year (2011) Background Build: Dove Road & N. White Chapel Boulevard (existing: all -way stop; future: roundabout) Build Out Year (2011): • N. White Chapel Boulevard & Main Driveway (two-way stop controlled) • Dove Road & N. White Chapel Boulevard (existing: all -way stop; future: roundabout) Traffic Impact Analysis 2 January 2010 CISD Elementary School; N. White Chapel Boulevard, Southlake, Texas Kimley-Horn and Associates, Inc. II. EXISTING (2009) AND PROPOSED LAND USE A. SITE LOCATION / STUDY AREA The proposed Carroll Independent School District (CISD) Elementary School is located west of N. White Chapel Boulevard between Dove Road and Sweet Street in the City of Southlake, Texas. A vicinity map can be seen in Exhibit 1. B. EXISTING DEVELOPMENT Currently, the site is predominately vacant and generates minimal traffic. Therefore, the impact of any existing development was not considered in this analysis. C. PROPOSED DEVELOPMENT Based on information provided by CISD and Hart, Gaugler & Associates, Inc., the CISD Elementary School will be designed to accommodate 700 students with two access driveways onto N. White Chapel Boulevard. The southern access driveway on N. White Chapel Boulevard will be used for bus/staff traffic and the northern driveway will be used for student pick-up and drop-off. In addition, an emergency access driveway onto Orchard Hill Drive will be provided that will be gated. The current site plan can be seen in Exhibit 2. Traffic Impact Analysis 3 January 2010 CISD Elementary School; N. White Chapel Boulevard, Southlake, Texas is Y+ �« •b � $ �J" j , v� Ile tof e CL O /,c M co �� F�.. { I �.� r�l. e. � %R� ¢,��4 S - M1r. '. i:,• [ - 4' �,� �,l -f" " �i--+ VJ 4� 00 W r ■ _ r S k +a Fos.fJ .i.JHM fl.WO ,�9 71 LLI L%jzo 1 a `UJar'a. a.-� J) i t ^- • •'s_r A i �r dF0o203 j zui UALia(8ns6`UBH1 p was\m8�w'ASaSaOES9Z3OSERLZa4%mdL6�'�/MNIIPI5I1Q0S8 862l1TnI-JZG6 pV- JH oul aossyW 0 aav W 3 w ZfO G SVX31'NN(lOJ.LNtlNlltll'3Htl'IH3.[1()S 30 A,LIJ LOZI'°N.L7dN.LSfltl.I3A21f1S 3JRId'Q'2I via axoaxvis xt ion NVid g.LIS "IOOHOS 7.2Iv..KaKRIH TIouxvD ,aam Imp. 5-IN y yy 1, 1 4 4 9 pp w rn § $$$ 33 gg pp g gg qg gggg ag p$ 9$ 3p 3 � ;ON CI�S�zFo i I & - - Grx-m-alelw .ac o3sodoudl i _ ofap 0.i 60 k ® 3 N / � I 7 h 10 I� j / V of w�o h a O 10 au- T O Hvwro x �wwmmv O3 Z m cLLi U ffiS� F s I _ � a 5cet ns �p� S I F , m �� If I I I 2 I d' I w � AVM l0-1Wtl OS 9NY6IX3 S I g3g3 -UH, I I � y I a -E g S O '8 Off----- �� � ° <x ° ----- ®- f5 �00 ® ` O 1 Cb. og®" p6N3p pp. p01 moPF'�i i p � 0 gmll § \1 ii55 . x v° - o H E� _m _ m e 6 4. N 00'23'35'w 704.a0' - p gg Kimley-Horn and Associates, Inc. III. EXISTING (2009) ROADWAY SYSTEM A. THOROUGHFARE SYSTEM Exhibit 3 displays the existing thoroughfares, lane assignments, and traffic control devices within the study area. The following is a general description of the major thoroughfares within the study area as they exist today, along with their planned cross -sections and alignments (based on the City of Southlake Master Thoroughfare Plan). N. White Chapel Boulevard. is a two-lane undivided collector facility that runs generally in a north -south direction to the east of the proposed site. South of the study area, N. White Chapel Boulevard provides a connection to SH 114 and FM 1709. N. White Chapel Boulevard's intersections with the SH 114 Frontage Roads are currently signalized. The speed limit along White Chapel Boulevard is posted at 40 mph both north and south of Dove Road. The City of Southlake's Master Thoroughfare Plan identifies N. White Chapel Boulevard between the SH 114 WB Frontage Road and Dove Road as ultimately a four -lane divided arterial (A4D — 88' Arterial). The Master Thoroughfare Plan also identifies N. White Chapel Boulevard, north of Dove Road, as remaining a two-lane undivided collector (C2U — 70' Collector). The installation of a roundabout at N. White Chapel Boulevard & Dove Road is included in the City's currently adopted FY 2010 CIP. Dove Road is currently a two-lane undivided arterial facility that generally runs in an cast -west direction. At its intersection with N. White Chapel Boulevard, Dove Road is an all -way stop. West of the study area, Dove Road provides a connection to SH 114, Shady Oaks Drive, and N. Peytonville Avenue. Dove Road's intersections with the SH H 4 Frontage Roads are currently signalized. The speed limit along Dove Road is posted at 30 mph both east and west of N. White Chapel Blvd. As previously indicated, the installation of a roundabout at N. White Chapel Boulevard & Dove Road is included in the City's currently adopted FY 2010 CIP. This improvement is anticipated to be in place by the opening of the CISD Elementary School. The City of Southlake's Master Thoroughfare Plan identifies Dove Road as a two- lane undivided arterial (A2U — 88' Arterial), east of Kirkwood Boulevard. West of Kirkwood Boulevard, Dove Rd. is built to its ultimate cross section as a four -lane divided arterial (A4D - 88' Arterial). Kirkwood Boulevard is currently a four -lane divided arterial facility from Stockton Drive to Dove Road. At Kirkwood Boulevard's intersection with Stockton Drive, the roadway transitions into a two-lane facility. Northwest of the study area, Kirkwood Boulevard provides a connection to SH 114. The speed limit along Dove Road is posted at 30 mph adjacent to Stockton Drive. The City of Southlake's Master Thoroughfare Plan identifies Kirkwood Boulevard as a four -lane divided arterial (A41) —100' Arterial). B. EXISTING (2009) TRAFFIC VOLUMES Exhibit 4 presents the existing AM & PM school peak hour traffic volumes collected on Thursday, May 28, 2009 at the intersection of N. White Chapel Boulevard & Dove Road. Traffic Impact Analysis 6 January 2010 CISD Elementary School; N. White Chapel Boulevard, Southlake, Texas CMFI Kimley-Morn M and Associates, Inc. IV. EXISTING (2009) CONDITIONS TRAFFIC ANALYSIS A. LEVEL OF SERVICE EVALUATIONS The evaluation of the existing roadway system was comprised of the AM & PM school peak hour level of service analysis. For the study area intersections, analysis was accomplished via the Synchro 6Tm software. The previously referenced Exhibit 3 details the lane assignments and traffic control devices for the existing roadway network that were used for analysis. The purpose of this analysis was to determine if any deficiencies exist within the network and to establish a baseline condition. Capacity defines the volume of traffic that can be accommodated by a roadway at a specified "level -of -service." Capacity is affected by various geometric factors including roadway type (e.g. divided or undivided), number of lanes, lane widths, and grades. Level -of -service (LOS), which is a measure of the degree of congestion, ranges from LOS A (free flowing) to LOS F (a congested, forced flow condition). LOS C is considered to be the minimum acceptable level of service by the City of Southlake for design and evaluation purposes, while LOS D is considered acceptable for long-term planning due to the uncertainty of study assumptions. A description of each operational state for both signalized and unsignalized intersections, based on the Highway Capacity Manual, is presented in Table 2. Table 2 - Definition of Level of Service for Signalized and Unsignalized Intersections Average Control Delay per Level Vehicle on Stop -Controlled of Service Approach (sec/veh) Description Unsignalized Intersections :� 10 (A) No delays at intersections with continuous flow A and B traffic. Uncongested operations; high frequency > 10 and <_ 15 (B) of long gaps available for all left and right - turning traffic; no observable queues. Moderate delays at intersections with C > 15 and 25 satisfactory to good traffic flow. Light _< congestion; infrequent backups on critical approaches. Increased probability of delays along every D > 25 and 5 35 approach. Significant congestion on critical approaches, but intersection functional. No long standing lines formed. Heavy traffic flow condition. Heavy delays E > 35 and 5 50 probable. No available gaps for cross -street traffic or main street turning traffic. Limit of stable flow. Unstable traffic flow. Heavy congestion. Traffic F > 50 moves in forced flow condition. Average delays greater than one minute highly probable. Total breakdown. Source: Highway Capacity Manual Traffic Impact Analysis 9 January 2010 CISD Elementary School; N. White Chapel Boulevard, Southlake, Texas EM" Kimley-Horn and Associates, Inc. The following tables detail the results of the analysis for the study area. Table 3 lists the results for the unsignalized intersection. The Synchro 6T" output sheets for this analysis are provided in the Appendix. Based on the analysis of existing conditions, the intersection of N. White Chapel Boulevard & Dove Road currently operates at an acceptable level of service during the AM & PM school peak hours. Table 3 - Existing (2009) Unsignalized Intersection Analysis Intersection AM School Peak Hour PM School Peak Hour Delay' LOS Delay t LOS N. White Chapel Blvd. & Dove Rd. EBLT 10.7 B 9.7 A EBT 18.7 C 14.0 B WBLT 13.6 B 1 11.5 B WBT 17.2 C 19.5 C NBLT 10.3 B 9.7 A NBT 15.2 C 14.3 B SBLT 10.9 B 9.9 A SBT 14.1 B 13.0 B Intersection 15.5 C 1 14.9 B Delay is reported as HCM delay in sec / veh B. EXISTING (2009) THOROUGHFARE CAPACITY ANALYSIS Thoroughfare capacity analysis was completed using level of service criteria outlined by the North Central Texas Council of Governments (NCTCOG). Table 4 provides a description of this criterion as it applies to thoroughfare facilities. Table 4 - Level of Service Criteria for Thoroughfare Capacity Analysis VEC Ratio 0.00 0.20 0.45 0.65 0.80 11.00 Level of Service I A I B I C D V = Peak Hour Directional Volume (vehicles per hour) C = Per Lane Directional Capacity (vehicles per hour) Per lane directional capacity is assumed to be the following: Suburban Collector: 525 vehicles per hour per lane (per NCTCOG) Suburban Arterial: 650 vehicles per hour per lane er NCTCOG Based upon the results of the existing traffic thoroughfare capacity analysis, N. White Chapel Boulevard and Dove Road operate at an acceptable level of service. Dove Road, east of N. White Chapel Boulevard has the heaviest existing volume, but will likely be the least effected roadway facility by the proposed CISD Elementary School. Table 5 lists the results for the two studied facilities. Traffic Impact Analysis 10 January 2010 CISD Elementary School; N. White Chapel Boulevard, Southlake, Texas ©_© Kimley-Horn and Associates, Inc. Table 5 - Existing Traffic Thoroughfare Capacity Analysis AM School Peak PM School Peak Class Hoar Hour Roadway Segment Direction (section) VIC V/C V Ratio ]---N. LOS V Ratio LOS White North of NB Collector 152 0.29 A,B 129 0.25 A,B Chapel Blvd. Dove Rd. (C2U) SB 186 0.35 A,B 169 0.32 A,B N. White Dove Rd. to NB Arterial 200 0.31 A,B 215 0.33 A,B Chapel Blvd. SH 114 (A2U) SB 261 0.41 A,B 200 0.31 A,B East of EB Arterial 352 0.54 C 278 0.43 A,B Dove Rd. N. White Chapel Blvd. (A2U) WB 396 0.61 C 269 0.41 A,B West of EB Arterial 265 0.41 A,B 182 0.28 A,B Dave Rd. N. White Cha el Blvd. (A2U) WB 282 0.43 A,B 228 0.35 A,B *Future A41) Traffic Impact Analysis 11 January 2010 CISD Elementary School; N. White Chapel Boulevard, Southlake, Texas ❑ � ® Kimley-Horn and Associates, Inc. V. BUILD OUT YEAR (2011) BACKGROUND TRAFFIC A. BUILD OUT YEAR. (2011) THOROUGHFARE SYSTEM The proposed site access locations and lane use configurations proposed for opening day of the C1SD Elementary School are consistent with those shown in Exhibit 3 with the exception of the intersection of N. White Chapel Boulevard and Dove Road which will be reconstructed as a roundabout by the City of Southlake. B. BACKGROUND TRAFFIC GROWTH RATE In order to determine the projected background traffic volumes, historical daily traffic volumes along SH 114 WB Frontage Road, Dove Road, and White Chapel Boulevard were obtained from the City of Southlake. The historical counts can be seen in Table 6. Based upon the historic volumes, a 6% growth rate was applied to the existing traffic volumes to generate the background traffic in the build -out year (2011). Table 6 - Historic Traffic Volumes Year Southlake 2008 Traffic Count Report Weekday Daily Count White Chapel Boulevard North of Dove Road 2006 3,081 2007 2,737 2008 3,028 2009 3,728 White Chapel Boulevard South of Dove Road 2006 4,437 2007 4,270 2008 2,195 2009 4,602 Dove Road est of White Chapel Boulevard 2006 3,700 2007 5,985 2008 3,710 2009 6,171 Dove Road East of White Chapel Boulevard 2006 4,157 2007 4,638 2008 5,025 2009 4,417 Exhibit 5 displays the projected Build Out (2011) background traffic volumes which combines the growth of existing traffic (see Exhibit 4) with the projected 6% background growth. Traffic Impact Analysis 12 January 2010 CISD Elementary School; N. White Chapel Boulevard, Southlake, Texas ©_® Kimley-Horn and Associates, Inc. VI. BUILD OUT YEAR (2011) BACKGROUND TRAFFIC ANALYSIS A. LEVEL OF SERVICE EVALUATIONS The evaluation of the Build Out Year (2011) background system was comprised of the AM and PM school peak hour level of service analysis. The previously referenced Exhibit 3 details the lane assignments and traffic control devices for the proposed roadway network that were utilized in the analysis. The purpose of this analysis was to determine any deficiencies that may exist in the Build Out Year (2011) background traffic conditions and roadway network and to establish a baseline condition for the total traffic analysis. The following tables detail the results of the analysis for the study area. Table 7 compiles the results of the controlled movements at the unsignalized intersection. Table 8 compiles the results when the intersection is reconstructed to a roundabout. The Synchro 67"r output sheets for this analysis are provided in the Appendix. Based on the analysis of the Build Out Year (2011) background traffic conditions, N. White Chapel Boulevard and Dove Road is projected to operate at an acceptable level of service during AM and PM school peak hour. The eastbound and westbound approaches experience slightly longer than desired delays. As shown in Table 8 the installation of a roundabout is projected to improve the delay associated with several of the approaches of the intersection. Table 7 - Build Out Background (2011) Unsignalized Intersection Analysis Intersection AM School Peak Hour PM School Peak Hour Delay 1 LOS Delay' LOS N. White Chapel Blvd. & Dove Rd. EBLT 11.5 B 10.3 B EBT 25.8 D 16.9 C WBLT 15.9 C 12.8 B WBT 23.0 C 28.4 D NBLT 10.9 B 10.2 B NBT 19.0 C 17.7 C SBLT 11.8 B 10.4 B SBT 16.9 C 15.2 C Intersection 19.8 C 19.3 C it Delay is reported as HCM delay in sec / veh Table 8 - Build Out Background (2011) Roundabout Intersection Analysis Intersection (Roundabout) AM School Peak Hour PM School Peak Hour V/C' LOS V/C' LOS N. White Chapel Blvd. & Dove Rd. EB 0.42 - 0.52 C 0.27 - 033 B WB 0.46 - 0.55 C 0.46 - 0.56 C NB 0.32 - 0.39 B 0.28 - 0.34 B SB 0.31 - 0.39 B 0.27 - 0.33 B Intersection 0.46 - 0.55 C 0.46 - 0.56 C F Synchro 6m output is in volume/capacity v/e ratio for roundabouts, see Table 4 Traffic Impact Analysis 14 January 2010 CISD Elementary School; N. white Chapel Boulevard, Sauthlake, Texas Kimley-Horn and Associates, Inc. VII. BUILD OUT (2011) SITE TRAFFIC A. PROPOSED SITE TRIP GENERATION Traffic projections were prepared for the proposed development based on the trip generation rates found in the Institute of Transportation Engineers (ITE) publication entitled Trip Generation, 8th Edition. This recognized standard for trip generation is based on actual surveys (traffic counts) of existing types of development. Based on information provided by the Carroll Independent School District, the CISD Elementary School site will consist of a school designed to accommodate 700 students. The trip generation rates assumed for the proposed development are given in Table 9. The calculated number of trips from these rates represents vehicle trips. Table 10 summarizes the total number of trips that are expected to be generated by the proposed development during the AM and PM school peak periods. The number of trips generated represents the number of vehicles entering and exiting the proposed development to and from the adjacent street system. No adjustments were made for internal capture or pass -by trips. Table 9 - Estimated Trip Generation Rates AM School Peak PM School Peak Land Use Weekday Hour Hour Description / Rate / In:Out Rate I In:Out Rate / In:Out ITE Code Equation Split Equation Split Equation Split % pl Elementary School 1.29 (X) 50:50 0.45 (X) 55:45 0.28 (X) 45:55 ITE 4 520 Numbers of Trips Generated = 'Trip Rate (Development Unit) X — Number of Students Table 10 - Estimated Trip Generation — CISD Elementary School AM School Peak PM School Peak Land Use Intensity Units ITE Daily Hour Hour Code Total In Out Total In Out Total Elementary Number 700 of 520 903 173 142 315 88 108 196 School Students B. NET CHANGE IN TRIP GENERATION The existing vacant property generates no traffic on the study area roadway network. Therefore, no reductions were applied to the projected site traffic to account for the change in land use. Traffic Impact Analysis 15 January 2010 CISD Elementary School; N. White Chapel Boulevard, Southlake, Texas ��❑ Kimley-Horn and Associates, Inc. C. TRIP DISTRIBUTION AND TRAFFIC ASSIGNMENT The distribution and assignment of build out site -generated traffic to the study area roadway network was performed to reflect the anticipated local traffic patterns. The distribution and assignment was determined based upon examining the boundaries of the CISD Elementary School and cursory review of appraisal district parcel data. It was assumed the new CISD Elementary School boundaries would be predominantly the current Durham Elementary boundaries and a western portion of the Johnson Elementary boundaries. Based on the parcel data, approximately 80% of the students would arrive from south of SH 114, 10% from north of Dove Road, and 10% from cast of N. White Chapel Boulevard. The 80% coming from south of SH 114 will predominately be divided among N. White Chapel Boulevard, Peytonville Avenue, and Shady Oaks Drive. The existing school district boundaries have been included in the Appendix. Exhibit 6 presents the inbound and outbound directional distributions during the AM and PM school peak for the proposed CISD Elementary School site. Exhibit 7 presents the projected AM and PM school peak hour site trips during the Build Out Year (2011). These volumes were computed based on the trip generation information and directional distribution assumptions. The Build Out Year (2011) total traffic volumes presented in Exhibit 8 were estimated by combining the anticipated site generated traffic volumes (see Exhibit 7) with the projected background traffic volumes (see Exhibit 5). Traffic Impact Analysis 16 January 2010 CISD Elementary School; N. White Chapel Boulevard, Southlake, Texas WEST DOVE RD. ELEMENTARY ¢SCHOOL MAIN DRIVEWAY w� WO IBUSISTAFF DRIVEWAY HILL DR. STOCKTON DR. 381(305) 376(244) --� LEGEND SIGNALIZED INTERSECTION XXX(XXX) AM(PM) PEAK HOUR SCHOOL VOLUMES 246(166) 11(11) J m J W W N W W 2 2 O z N Q cn i �o 14 11 128 97 48(33) 258(183) �155(96) C7 O) C� 0M 30 3 N N e-- 462(311) 410(323) EXHIBIT 8: Build Out Year (2011) AM (PM) School Peak Hour Traffic Volumes C2-� Kahn", •Fbrn � and Associates, Inc. Kimley-Horn and Associates, Inc. VIII. BUILD OUT YEAR (2011) TOTAL TRAFFIC ANALYSIS A. LEVEL OF SERVICE EVALUATIONS The evaluation of the build out system was comprised of the AM & PM school peak hour level of service analysis. The previously referenced Exhibit 3 details the lane assignments and traffic control devices for the proposed roadway network that were utilized in the analysis. Note, the Main Driveway is recommended to be two exit lanes, as well as a northbound left - turn lane on N. White Chapel Boulevard & Main Driveway is recommended (See Auxiliary Lanes). The purpose of this analysis was to identify any deficiencies within the network as a result of the traffic generated by the proposed CISD Elementary School. Table 11 compiles the results of the controlled movements at unsignalized intersections. The Synchro 6Tm output sheets from this analysis are provided in the Appendix. Based on the analysis of the projected 2011 build out conditions, the intersection of N. White Chapel Boulevard & Dove Road approaches an unacceptable level of service as an all -way stop controlled intersection. This intersection is projected to operate at an acceptable level of service as a roundabout that is scheduled to be completed prior to the opening of the elementary school. Table 12 shows the projected level of service of the roundabout. Table 11 - Build Out (2011) Unsignalized Intersection Analysis Intersection AM School Peak Hour PM School Peak Hour Delay 1 LOS Delay' LOS N. White Chapel Blvd. & Dove Rd. EBLT 23.5 C 10.3 B EBT 42.9 E 16.9 C WBLT 21.2 C 12.8 B WBT 46.2 E 28.4 D NBLT 12.3 B 10.2 B NBT 44.3 E 17.7 C SBLT 13.9 B 10.4 B SBT 56.6 E 15.2 C Intersection 40.3 E 19.3 C N. White Chapel Blvd. & Main Driveway EBLT 34.8 D 21.3 C EBRT 14.4 B 12.2 B NBLT 9.5 A 8.4 A ' Delay is reported as HCM delay in sec / veh Table 12 - Build Out (2011) Roundabout Intersection Analysis Intersection (Roundabout) AM School Peak Hour PM School Peak Hour V/C 1 LOS VEC 1 LOS N. White Chapel Blvd. & Dove Rd. EB 0.62-0.76 C-D 0.27-0.33 B WB 0.57 - 0.70 C - D 0.46 - 0.56 C NB 0.45 - 0.56 C 0.28 - 0.34 B SB 0.51 - 0.63 C 0.27 - 0.33 B Intersection 10.62 - 0.76 C - D 0.46 - 0.56 C ' Synchro 6"' output is in volume/capacity (v/c) ratio for roundabouts, see Table 4 Traffic Impact Analysis 20 January 2010 CISD Elementary School; N. White Chapel Boulevard, Southlake, Texas Kimley-horn I• and Associates, Inc. B. BUILD OUT (2011) THOROUGHFARE CAPACITY ANALYSIS Based upon the results of the build out traffic thoroughfare capacity analysis, N. White Chapel Boulevard and Dove Road operate at an acceptable level of service. Similar to the existing scenario, Dove Road, east of N. White Chapel Boulevard, has the heaviest existing volume. Note that less than five (5) percent of the projected build out volume on Dove Road, east of N. White Chapel Boulevard is traffic traveling to and from the CISD Elementary School. Table 13 lists the results for the two studied facilities. Table 13 - Build Out (2011) Traffic Thoroughfare Capacity Analysis AM School Peak PM School Peak Class Hour Hour Roadway Segment Direction (section) V/C VIC Y I LOS Y LOS Ratio Ratio N. White North of NB Collector 327 0.59 C 224 0.41 A,B Chapel Blvd. Dove Rd. (C2U) SB 337 0.61 C 199 0.36 A,B N. White Dove Rd. to Arterial 286 0.44 A,B 273 0.42 A,B Chapel Blvd. SH 114 (A2U) [:ISB 343 0.52 C 263 0.40 A,B East of EB Arterial 410 0.63 C 323 0.50 C Dove Rd. N. White (A2U) WB 462 0.71 D 311 0.49 C Chapel Blvd. West of EB Arterial 381 0.59 C 305 0.47 C Dove Rd. N. White (A2U) WB 376 0.58 C 244 0.38 C Chapel Blvd. *Future A41) C. SITE CIRCULATION AM Drop -Off The AM school peak drop-off period circulation plan was designed to separate buses from passenger vehicles. The buses will use the south entrance on N. White Chapel Boulevard. This south entrance will also be utilized by the elementary school staff, but not for student drop-off. The passenger vehicles will drop-off the students via the Main Driveway. The Main Driveway has two options upon entering the site. In lower traffic periods, vehicles can enter the Main Driveway and continue traveling west. This short drop-off route allows for approximately fourteen (14) vehicles to queue up. During peak times a swing gate, north of the Main Driveway, can open and allow the longer route to the drop off. This route would allow approximately thirty-four (34) vehicles to stack up internal to the site. A third drop- off/pick-up lane is provided adjacent to the site. This third lane is the only lane where a vehicle should be allowed to stop. The three drop-off lanes adjacent to the site are projected to allow continuous movement of vehicles to provide for enough storage and stacking so as not Traffic Impact Analysis 21 January 2010 CISD Elementary School, N. White Chapel Boulevard, Southlake, Texas �I♦❑ Kimiey-Horn and Associates, Inc. to stack onto N. White Chapel Boulevard. Note the available stacking does not include any double stacking so a bypass lane remains open. Staff from the CISD Elementary School are recommended to help assist in the drop-offs. The staff should direct the vehicles to pull up as far as possible and encourage drop-offs in a timely manner. The CISD staff directing traffic can be an essential piece of moving the drop-off traffic and preventing back-up during the AM school peak. It is intended for the exiting AM traffic to come out the same Main Driveway. It is anticipated that a majority of the traffic leaving the school will turn right on N. White Chapel Boulevard. The intent of circular drop-off route is to provide a one-way counter clockwise circulation pattern. We recommend providing pavement markings and/or signage to assist drivers in understanding operation of the student drop-off to lessen the likelihood of confusion. PMPick-Up During PM school peak periods vehicles often arrive earlier and wait to pick-up students. It is estimated that approximately forty-four (44) vehicles can be stored on -site for pick-up in the student drop-off area. Note this does not include double stacking or vehicles waiting in the parking aisles. Additional, overflow parent pick-up parking could be considered in the bus/staff area during the PM school peak. The bus area is striped for three lanes, and utilizing one lane for parent pick-up would allow for an additional eighteen (18) vehicles to park on - site. Potentially some overflow parking may pick up students in the adjacent neighborhood. To prevent neighborhood parking, "No Parking Signs" should be placed on Orchard Hill Drive. D. EMERGENCY ACCESS DRIVEWAY AT ORCHARD HILL DRIVE An emergency access driveway connects Orchard Hill Drive to the bus/staff parking lot on the south side of the CISD Elementary School. This emergency access driveway is not intended for normal use during drop-off or pick-up circulation. The emergency access driveway has been located to primarily serve the local neighborhood residents and is not a requirement of the City. The driveway would serve three primary purposes. (1) Provide a connection to the residential neighborhoods located off of Kirkwood Boulevard. This connection will allow for a route/pathway where students can walk to the school, (2) serve as an alternative route for emergency vehicles; and (3) if necessary, provide a potential limited relief point of access. For the purposes of the study, this driveway was assumed closed. Note, that a large percentage (45%) of traffic is projected to travel eastbound on Dove Road. Some of this traffic may choose to utilize the eastbound left -turn lane at Kirkwood to access this emergency access driveway to drop-off / pick up their student. Even though the emergency driveway is too projected to remain closed a small percentage of students potentially may be dropped -off within the neighborhood to avoid traffic along N. White Chapel Boulevard. As previously mentioned, to prevent neighborhood parking, "No Parking Signs" should be placed on Orchard Hill Drive. E. AUXILIARY LANES The City of Southlake's Driveway Ordinance states that a deceleration lane shall be provided for any driveway located on an arterial street if the right -turn ingress exceed 50 vehicles on the design hour or if a street facility exceeds 40 mph, a deceleration lane may be required if the projected right -turn volume exceeds 40 vehicles per hour. Using the City's criteria, a right turn deceleration lane is not warranted on N. White Chapel Boulevard at the Main Driveway. Traffic Impact Analysis 22 January 2010 CISD Elementary School; N. white Chapel Boulevard, Southlakc, Texas ❑�❑ ICimley-Horn and Associates, Inc. N. White Chapel Boulevard is a collector facility with only 17 southbound right -turn vehicles expected during the AM peak hour. A right -turn deceleration lane is not recommended at the Main Driveway. Based on the anticipated school site distribution and volumes, a northbound left -turn lane from N. White Chapel Boulevard into the CISD Elementary School's Main Driveway should be provided. The northbound left -turn will start south of the Bus/Staff Driveway to provide for access to the Bus/Staff Driveway and continue to the Main Driveway. After the Main Driveway, N. White Chapel Boulevard will transition back to two lanes. The storage provided between the Bus/Staff Driveway and the Main Driveway is approximately 237 feet which would allow storage for approximately nine (9) to ten (10) vehicles. Based on the results from Synchro 6T" queue analysis, the northbound queue was projected to be forty-four (44) feet or approximately two (2) vehicles. Due to the relatively low southbound volume (209 vehicles in the AM peak), the northbound left -turn traffic does not have to yield to a large volume of southbound traffic. This analysis assumed that all vehicles arrived during an approximately 20-minute window. If the arrival window is shortened the projected queue would increase, but is projected that the queue would Iikely not exceed nine to ten vehicles with the current southbound volumes on N. White Chapel Boulevard. As mentioned in the Site Circulation section the internal site traffic should be directed so that it does not prevent the northbound left -turn vehicles from accessing the site. F. INTERSECTION SIGHT DISTANCES Based on the AASHTO Policy on Geometric Design of Highways and Streets the required intersection sight distance along N. White Chapel would be 445 feet based on a posted speed of 40 mph. Along Orchard Hill Drive this requirement would be 335 feet based on a posted speed on 30 mph. Based on field observations the Bus/Staff Driveway that will be constructed along N. White Chapel Boulevard will provide adequate site distance. Based on field observations, the Main Driveway intersection sight distance was blocked due to existing vegetation. The AASHTO Policy on Geometric Design of Highways and Streets states "within a sight triangle, any object at a height above the elevation of the adjacent roadways that would obstruct the driver's view should be removed or lowered, if practical. Such objects may include: buildings, parked vehicles, highway structures, roadside hardware, hedges, trees, bushes, unmowed grass, tall crops, walls, fences, and the terrain itself." Based on the guidance provided by AASHTO, a sight triangle analysis was performed for the Main Driveway. Exhibit 9 illustrates the intersection sight triangle for a left -turn from a minor road. It is recommended that the vegetation/trees within the intersection sight triangle be removed. In addition, prior to use of the Main Driveway, it is recommended that field observations be performed to ensure the 445 feet of intersection sight distance is provided. A similar analysis was performed for the left -turn at the emergency access driveway to Orchard Hill Drive. Partial Sight Distance is blocked by trees and bushes planted near a residential drive. Consideration should be given to replacing this vegetation with alternatives that do not block the vehicles leaving the emergency access driveway triangle of vision. A photolog has been provided in the Appendix for the Main Driveway and Limited Access Drive. Traffic Impact Analysis 23 January 2010 CISD Elementary School; N. white Chapel Boulevard, Southlake, Texas ��❑ 4Cimley-Horn and Associates, Inc. G. HEADLIGHTS EXITING MAIN DRIVEWAY Based on conversations with the City of Southlake, there is a concern that vehicles exiting the Main Driveway would have their headlights shine into the house across the street. A photo has been provided in the Appendix illustrating the approximate location of the house in relation to the proposed location for the Main Driveway. Headlight beams shine for approximately 350 feet and the house is located within this beam range at approximately 230 feet. We recommend providing vegetation on the east side on N. White Chapel Boulevard immediately across from the Main Driveway to reduce the impact of the headlights on the home immediately across the street. Traffic Impact Analysis 24 January 2010 C5D Elementary School; N. White Chapel Boulevard, Soutblake, Texas peon aouin woaj uanl }}a� - aouelsia lgbiS uoiloasialul 6 1I81HX3 .S££ = aSl papuawwooa�l ,Sat, = 4SI papuawwooa�j 6££ = oas 91 x ydw o£ x Lip' � = dSl 3-V-V = oas 91 x ydw oV x Lb' � = aSl aeO J96uassed = alolyan u6!s9a aeO a96u9ssed = elolyan u6lsaa SpU009S S'L = (OIHSVV aad) deO aw!1 spuooas S'L = (OlHSVV gad) deO awll ydw o£ = (auel II!H pjeyojo) jofew }o paadS ydw ot, = (penalno8 ladeyO al!yM 'N) aofew Jo paadS auel IM paeyoJO pJen81no8 ladeyO 91!yM 'N deO awl1 x jofe" jo paadS x Lb' l = (dSI) eouels!a ly6iS uo!joesialul Kimley-Horn ❑ ❑ and Associates, Inc. H. SCHOOL ZONES The Texas Manual on Uniform Traffic Control Devices (TMUTCD) 2006 Edition, Part 7 — Traffic Control for School Areas indicates that the reduced speed zone for a school should begin 200 feet from the crosswalk or from the first driveway on school property, whichever is encountered first as traffic approaches the school. For the school zone and crosswalk signage, the TMUTCD now permits the choice between traditional yellow and the newer fluorescent yellow -green color for the sign background. A school zone could be terminated by posting of the regular speed limit. The figure on the following page shows an example of a school area traffic control plan from the TMUTCD. We recommend a school zone be provided for the CISD Elementary School based on the guidance in the TMUTCD. Traffic Impact Analysis 26 January 2010 C1SD Elementary School; N. White Chapel Boulevard, Southlake, Texas EM" Kimley-Horn and Associates, Inc. Mir AHeAU 150 to 700 feet SCHOOL SPEED SPEED LIMIT LIMIT 20 11" 34 1 Minn 200 feet on —or r.1. i School Driveway 200 feet SPEED LIMIT T i SCHOOL 40 SPEED LIMIT 20 aswa:1oe. x �r��o cw 150 to 700 feet j — AHEAD Source: Texas Manual on Uniform Traffic Control Devices, 2006 Edition Example Sign Layout for School Area Traffic Control Traffic Impact Analysis 27 January 2010 CISD Elementary School; N. White Chapel Boulevard, Southlake, "Texas ©�❑ Kimley-Morn and Associates, Inc. IX. CONCLUSIONS AND RECOMMENDATIONS Based on the analyses performed during this traffic impact study, we offer the following conclusions and recommendations (see also Exhibit 10): Existing (2009) Conclusions & Recommendations: Based on the analysis of existing conditions, all study area intersections currently operate at an acceptable level of service during the AM and PM school peak hour. Build Out Year (2011) Background Traffic Conclusions & Recommendations: Based on the analysis of the Build Out Year (2011) background traffic conditions the eastbound and westbound intersection approaches to N. White Chapel Boulevard along Dove Road experience slightly longer than desired delays. The installation of a roundabout is projected to improve the delay associated with several of the approaches of the intersection. Build Out Year (2011) Traffic Conclusions & Recommendations: Based on the analysis of the projected 2011 build out conditions, the intersection of N. White Chapel Boulevard & Dove Road approaches an unacceptable level of service as an all -way stop controlled intersection. This intersection is projected to operate at an acceptable level of service as a roundabout that is scheduled to be completed prior to the opening of the elementary school. Based on the anticipated school site distribution and volumes, a northbound left -turn lane from N. White Chapel Boulevard into the CISD Elementary School's Main Driveway should be provided. The northbound left -turn will start south of the Bus/Staff Driveway to provide for access to the Bus/Staff Driveway and continue to the Main Driveway. We recommend providing pavement markings and/or signage to assist drivers in understanding the one-way circulation of the student drop-off and pick-up. We recommend installing "No Parking Signs" along Orchard Hill Drive to prevent school pick-up and drop-off parking. Based on field observations, the CISD Elementary School Bus/Staff Driveway along N. White Chapel Boulevard will be constructed to provide adequate site distance. For the Main Driveway and emergency access driveway it is recommended that the vegetation/trees within the intersection sight triangle be removed. Install a school zone according to the TMUTCD (200 feet from the crosswalk or from the first driveway on school property, whichever is encountered first as traffic approaches the school) along N. White Chapel Boulevard. We recommend providing vegetation on the east side on N. White Chapel Boulevard immediately across from the Main Driveway to reduce the impact of the headlights on the home immediately across the street. A summary of recommendations is shown on Exhibit 10. Traffic Impact Analysis 28 January 2010 CISD Elementary School; N. White Chapel Boulevard, Southlake, Texas - Remove the vegetationitree within the intersection sight triangle. -Provide vegetation on the east s e of N. White Chapel Boulevard immediately across the street from the Main Drive to reduce the impact of the headlights on the home immediately across the street. (Build Out 2011 - C1SD ) ELEMENTAL P� UrSCHOOL z¢ MAIN DRIVEWAY - �LU Q ma W 0 `GQ kUSISTAFF DRIVEWAY) - Consider Removing the THARIITHIILDR- vegetationitrees within the intersection sight triangle. (Build Out 2011 - C1SD) -Install No Parking Signs along Orchard Hill Dr. to prevent pick-upkON DR and drop-off parking. (Build Out 2011 - C1SD) hyjM A T�1T1 _ b - Install pvmt markings and/or signage to assist drivers in understanding the one-way counter clockwise circular operation of the student drop-off/pick-up. (Build Out 2011 - C1SD ) LEGEND i ROUNDABOUT a - Install a school zone according to the TMUTCD along N. White Chapel Boulevard. (Build Out 2011 - C1SD) m J W Ct Q T U W H 2 2 LL' O Z Ove N.T.S. - Installation of a northbound left -turn lane to serve the taus/Staff Drive and the Main Drive. (Build Out 2011 - C1SD ) - Installation of the proposed roundabout prior to the opening of the Elementary School. (Build Out 2011- City) EXHIBIT 10: Recommendations itrl i n Iftley-Horn ►! and Assodafes, Inc. Cr F1 Kimley-Horn M and Associates, Inc. Appendix Sections 1 Photo Log 2 Existing Elementary School Boundaries 3 Raw Traffic Count Sheets 4 Existing (2009) Conditions Traffic Analysis 5 Build Out Year (2011) Background Traffic Analysis b Build Out Year (2011) Total Traffic Analysis Traffic Impact Analysis January 2010 CISD Elementary School; N. White Chapel Boulevard, Southlake, Texas Kimley-Horn and Associates, Inc. 1. Photo Log Photo 1. Looking north along N. White Chapel Blvd. from Main Drive Photo 2. Looking south along White Chapel Blvd. from Main Drive Traffic Impact Analysis January 2010 CISD Elementary School; N. White Chapel Boulevard, SOuthlake, Texas EM"Kimley-Horn and Associates, Inc. Photo 3. Looking cast along Orchard Hill Lane from Limited Access Drive Photo 4. Looking east from Main Drive Traffic Impact Analysis January 2010 CISD Elementary School; N. White Chapel Boulevard, Southlake, Texas ❑�® Kimley-Warn and Associates, Inc. 2. Existing Elementary School Boundaries Traffic Impact Analysis January 2010 CISD Elementary School; N, White Chapel Boulevard, Southlake, Texas I � � � I 1 � i � � � � �� �� ` � �� � � II �� ` _ �� � ��,� �� � � � � �. 1 � � .- � r ��� �■ ��� - - , .. � =ii F� !� r� �� � f� � � � �. E � ��.., , � � f �R �� i � =� �Y • � � _� �� �• i�, y � ■ ��� � � ��� '�„�/ ., �, ,, , � , CI_® K ley -Horn M and Associates, Inc. 3. Raw Traffic Count Sheets Traffic Impact Analysis January 2010 C1SD Elementary School; N. White Chapel Boulevard, Soulhlake, Texas qjwAt.Twmc eauutiag, ,&y 1120 W. Lovers Ln. Arlington, TX 76013 File Name : WHITE CHAPEL @ DOVE Site Code : 00000053 Start Date : 5/28/2009 Page No : 1 WHITE CHAPEL -------------- DOVE ----------- WHITE CHAPEL DOVE Souhbound Westbound Northbound Eastbound Start Time Left Thru Ri ht Peds ,o,a, Left I Thru Ri ht Peds A . Total Left I Thru I Right I Pods I App rota, Left 1 Thru I Ri ht Peds A To,., 7IN. Total 07:00 2 21 5 0 28 18 14 1 0 33 1 5 9 0 15 3 9 2 0 14 90 07:15 0 22 3 0 25 27 26 2 0 55 1 7 9 0 17 3 18 2 0 23 120 07:30 4 22 6 0 32 39 60 4 0 103 0 17 15 0 32 6 27 1 0 34 201 07:45 14 27 7 0 48 45 51 10 0 106 7 26 24 0 57 10 57 6 0 73 284 Total 20 92 21 0 133 129 151 17 0 297 9 55 57 0 121 22 111 11 0 144 695 08:00 14 38 9 08:15 7 26 12 08:30 3 14 5 Total 24 78 26 15:00 2 24 7 15:15 3 24 10 15:30 3 25 10 15A5 5 32 17 Total 13 105 44 16:00 4 24 12 16:15 4 18 5 16:30 2 22 4 16:45 3 19 3 Total 13 83 24 Grand Total 70 358 115 Apprch % 12.9 65.9 21.2 Total % 2.4 12.3 4 0 61 24 64 10 0 98 4 26 35 0 65 17 65 2 0 84 308 0 45 30 55 4 0 89 7 19 20 0 46 3 70 1 0 74 254 0 22 18 50 5 0 73 3 12 14 0 29 5 42 2 0 49 173 0 128 72 169 19 0 260 14 57 69 0 140 25 177 5 0 207 735 0 33 0 37 0 38 0 54 10 18 3 16 23 2 20 24 4 34 80 10 0 162 80 145 19 0 40 15 36 5 0 27 25 23 4 0 28 12 24 6 0 25 21 46 7 0 120 73 129 22 0 5431 354 594 77 0 34.5 58 7.5 0 18.7 12.2 20.4 2.6 WHITE CHAPEL DOVE Peak Hour Analysis From 07:00 to 11:45 - Peak 1 of 1 Peak Hour for Entire intersection Begins at 07:30 07:30 4 22 6 0 32 39 60 4 07:45 14 27 7 0 48 45 51 10 08:00 14 38 9 0 61 24 64 10 08:15 7 26 12 0 45 30 55 4 Total Volume 39 113 34 0 186 138 230 28 0/. Ann_ Total 21 60.8 18.3 0 34.8 58.1 7A Peak Hour Analysis From 12:00 to 16:45 - Peak 1 of 1 0 31 0 41 0 48 0 124 3 2 4 5 23 23 24 25 24 21 39 33 0 244 14 95 117 0 56 5 12 22 0 52 7 20 11 0 42 7 20 19 0 74 4 26 22 0 22d 23 78 74 0 10251 60 285 317 0 9.1 1 43.1 47.9 0 35.2 2.1 9.8 10.9 0 50 3 17 5 0 46 6 28 2 0 67 8 48 1 0 63 5 54 3 0 226 22 147 11 0 39 5 18 4 0 38 11 27 4 0 46 5 27 2 0 52 9 37 1 0 175 30 109 11 0 662 1 99 544 38 0 14.5 79.9 5.6 0 22.7 3.4 18.7 1.3 WHITE CHAPEL 0 103 0 17 15 0 106 7 26 24 0 98 4 26 36 0 89 7 19 20 0 396 18 88 94 0 9 44 47 DOVE stbound 0 25 139 0 36 160 0 57 210 0 62 303 0 180 812 0 27 162 0 42 159 0 34 150 0 47 198 0 150 669 =1-131111111107tlfi 0 0 23.4 0 32 6 27 1 0 34 201 0 57 10 57 6 0 73 284 0 65 17 65 2 0 84 308 0 46 3 70 1 0 74 254 0 200 36 219 10 0 265 1047 0 13.6 82.6 3.8 0 can 15:15 " 3 L24yy' V10 �a... 0 37 16 23 2 0 41 2 23 21 0 46 6 28 2 0 36 160 15:30 3 25 10 0 38 20 24 4 0 48 4 24 39 67 8 15:45 5 32 17 0 54 34 80 10 0 124 5 25 33 0 63 5 54 3 0 62 303 16:00 4 24 12 0 40 15 36 5 0 56 5 12 22 0 39 5 18 4 0 27 162 Total Volume 15 105 49 0 169 85 163 21 0 269 16 84 115 0 215 24 148 10 0 182 835 % App. Tota.l 8.9 62.1 29 0 31.6 60.6 7.8 0 7.4 39.1 53.5 0 13.2 81.3 5.6 0 PHP .760 .820 .721 .000 .782 .625 .509 .525 .000 .542 .800 .840 .737 .000 .802 1 .750 .685 .625 .000 .734 .689 CI_" Kimley-Horn M and Associates, Inc. 4. Existing (2009) Conditions Traffic Analysis Traffic Impact Analysis January 2010 CISD Elementary School; N. White Chapel Boulevard, Southlake, Texas CISD Elementary School Existing AM 1: Dove Road & White Chapel Blvd. Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations T+ 1� il� I t Sign Control Stop Stop Stop Stop Volume (vph) 36 219 10 138 230 28 18 88 94 39 113 34 Peak Hour Factor 0.53 0.78 0.42 0.77 0.90 0.70 0.64 0.85 0.67 0.70 0.74 0.71 Hourly flow rate (vph) 68 281 24 179 256 40 28 104 140 56 153 48 Direction, Lane # EB 1 EB 2 WB 1 WB 2 NB 1 NB 2 SB 1 SB 2 Volume Total (vph) 68 305 179 296 28 244 56 201 Volume Left (vph) 68 0 179 0 28 0 56 0 Volume Right (vph) 0 24 0 40 0 140 0 48 Hadj (s) 0.53 -0.02 0.53 -0.06 0.53 -0.37 0.53 -0.13 Departure Headway (s) 7.6 7.0 7.5 6.9 8.0 7.1 8.0 7.3 Degree Utilization, x 0.14 0.60 0.37 0.56 0.06 0.48 0.12 0.41 Capacity (veh1h) 450 486 464 499 425 474 422 464 Control Delay (s) 10.7 18.7 13.6 17.2 10.3 15.2 10.9 14.1 Approach Delay (s) 17.2 15.8 14.7 13.4 Approach LOS C C B B Intersection Summary Delay 15.5 HCM Level of Service C Intersection Capacity Utilization 46.8% ICU Level of Service A Analysis Period (min) 15 Kimsey Horn CISD Elementary School Existing PM 1: Dove Road & White Chapel Blvd. rn m , *- t Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations T+ t+ Vi T I T Sign Control Stop Stop Stop Stop Volume (vph) 24 148 10 85 163 21 16 84 115 15 105 49 Peak Hour Factor 0.75 0.69 0.62 0.62 0.51 0.53 0.80 0.84 0.74 0.75 0.82 0.72 Hourly flow rate (vph) 32 214 16 137 320 40 20 100 155 20 128 68 Direction, Lane # EB 1 EB 2 WB 1 WB 2 NB 1 NB 2 SB 1 SB 2 Volume Total (vph) 32 231 137 359 20 255 20 196 Volume Left (vph) 32 0 137 0 20 0 20 0 Volume Right (vph) 0 16 0 40 0 155 0 68 Hadj (s) 0.53 -0.01 0.53 -0.04 0.53 -0.39 0.53 -0.21 Departure Headway (s) 7.4 6.9 7.1 6.5 7.6 6.7 7.7 7.0 Degree Utilization, x 0.07 0.44 0.27 0.65 0.04 0.47 0.04 0.38 Capacity (vehlh) 455 499 488 532 445 501 434 485 Control Delay (s) 9.7 14.0 11.5 19.4 9.7 14.3 9.9 13.0 Approach Delay (s) 13.4 17.2 14.0 12.7 Approach LOS B C B B Intersection Summary Delay 14.9 HCM Level of Service B Intersection Capacity Utilization 36.5% ICU Level of Service A Analysis Period (min) 15 Kimley Horn CM 11 Kimley-Horn M and Associates, Inc. 5. Build Out Year (2011) Background Traffic Analysis Traffic Impact Analysis January 2010 C1SD Elementary School; N. White Chapel Boulevard, Southlake, Texas CISD Elementary School Background (2011) AM 1: Dove Road & White Chapel Blvd. Movement EBI_ EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations 1� V1 "fir Vi T* T1 il� Sign Control Stop Stop Stop Stop Volume (vph) 40 246 11 155 258 31 20 99 106 44 127 38 Peak Hour Factor 0.53 0.78 0.42 0.77 0.90 0.70 0.64 0.85 0.67 0.70 0.74 0.71 Hourly flow rate (vph) 75 315 26 201 287 44 31 116 158 63 172 54 Direction, Lane ## EB 1 EB 2 WB 1 WB 2 NB 1 NB 2 SIB 1 SB 2 Volume Total (vph) 75 342 201 331 31 275 63 225 Volume Left (vph) 75 0 201 0 31 0 63 0 Volume Right (vph) 0 26 0 44 0 158 0 54 Hadj (s) 0.53 -0.02 0.53 -0.06 0.53 -0.37 0.53 -0.13 Departure Headway (s) 8A 7.5 7.9 7.3 8.4 7.5 8.5 7.8 Degree Utilization, x 0.17 0.71 0.44 0.67 0.07 0.57 0.15 0.49 Capacity (vehlh) 427 463 440 473 404 451 400 431 Control Delay (s) 11.5 25.8 15.9 23.0 10.9 19.0 11.8 16.9 Approach Delay (s) 23.2 20.3 18.2 15.8 Approach LOS C C C C Intersection Summary Delay 19.8 HCM Level of Service C Intersection Capacity Utilization 50.6% ICU Level of Service A Analysis Period (min) 15 Kimley Horn CISD Elementary School Background (2011) PM 1: Dove Road & White Chapel Blvd. Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations T+ 1 T+ T Sign Control Stop Stop Stop Stop Volume (vph) 27 166 11 96 183 24 18 94 129 17 118 55 Peak Hour Factor 0.75 0.69 0.62 0.62 0.51 0.53 0.80 0.84 0.74 0.75 0.82 0.72 Hourly flow rate (vph) 36 241 18 155 359 45 22 112 174 23 144 76 Direction, Lane # EB 1 EB 2 WB 1 WB 2 NB 1 NB 2 SIB 1 SB 2 Volume Total (vph) 36 258 155 404 23 286 23 220 Volume Left (vph) 36 0 155 0 23 0 23 0 Volume Right (vph) 0 18 0 45 0 174 0 76 Hadj (s) 0.53 -0.01 0.53 -0.04 0.53 -0.39 0.53 -0.21 Departure Headway (s) 7.9 7.3 7.5 6.9 8.0 7.1 8.2 7.4 Degree Utilization, x 0.08 0.53 0.32 0.77 0.05 0.56 0.05 0.45 Capacity (veh1h) 430 462 465 508 424 477 412 449 Control Delay (s) 10.3 16.9 12.8 28.4 10.2 17.7 10.4 15.2 Approach Delay (s) 16.1 24.0 17.2 14.8 Approach LOS C C C B Intersection Summary Delay 19.3 HCM Level of Service C Intersection Capacity Utilization 39.7% ICU Level of Service A Analysis Period (min) 15 Kimley Horn CISD Elementary School Background (2011) AM - Roundabout 1: Dove Road & White Chapel Blvd. } I Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Right Turn Channelized Volume (veh/h) 40 246 11 155 258 31 20 99 106 44 127 38 Peak Hour Factor 0.53 0.78 0.42 0.77 0.90 0.70 0.64 0.85 0.67 0.70 0.74 0.71 Hourly flow rate (vph) 75 315 26 201 287 44 31 116 158 63 172 54 Approach Volume (veh/h) 417 532 306 288 Crossing Volume (veh/h) 436 223 454 519 High Capacity (veh/h) 983 1163 969 919 High v/c (vehlh) 0,42 0.46 0.32 0.31 Low Capacity (veh/h) 798 960 786 742 Low v/c (veh/h) 0.52 0.55 0.39 0.39 Intersection Summary Maximum v/c High 0,46 Maximum v/c Low 0.55 Intersection Capacity Utilization 71.1% ICU Level of Service C Kimley Horn CISD Elementary School Background (2011) PM - Roundabout 1: Dove Road & White Chapel Blvd. Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Right Turn Channelized Volume (veh/h) 27 166 11 96 183 24 18 94 129 17 118 55 Peak Hour Factor 0.75 0.69 0.62 0.62 0.51 0.53 0.80 0.84 0.74 0.75 0.82 0.72 Hourly flow rate (vph) 36 241 18 155 359 45 23 112 174 23 144 76 Approach Volume (veh/h) 294 559 309 243 Crossing Volume (veh/h) 321 170 299 536 High Capacity (vehlh) 1076 1212 1095 907 High v/c (veh/h) 0.27 0.46 0.28 0.27 Low Capacity (veh/h) 882 1004 899 731 Low v/c (veh/h) 0.33 0.56 0.34 0.33 Intersection Summary Maximum v/c High 0.46 Maximum v/c Low 0.56 Intersection Capacity Utilization 54.7% ICU Level of Service A Kimley Horn ©�❑ Kimley-Horn and Associates, Inc. 6. Build Out Year (2011) Total Traffic Analysis Traffic Impact Analysis January 2010 C1SD Elementary School; N. White Chapel Boulevard; Southlake, Texas CISD Elementary School Build Out (2011) AM 1: Dove Road & White Chapel Blvd. -A *-- .4\ } I --1'--1''`# Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations T+ Vi Sign Control Stop Stop Stop Stop Volume (vph) 118 246 11 155 258 48 20 160 106 58 177 102 Peak Hour Factor 0.53 0.78 0.42 0.77 0.90 0.70 0.64 0.85 0.67 0.70 0.74 0.71 Hourly flow rate (vph) 223 315 26 201 287 69 31 188 158 83 239 144 Direction, Lane # EB 1 EB 2 WB 1 WB 2 NB 1 NB 2 SB 1 SB 2 Volume Total (vph) 223 342 201 355 31 346 83 383 Volume Left (vph) 223 0 201 0 31 0 83 0 Volume Right (vph) 0 26 0 69 0 158 0 144 Hadj (s) 0.53 -0.02 0.53 -0.10 0.53 -0.29 0.53 -0.23 Departure Headway (s) 9.4 8.9 9.4 8.8 9.7 8.8 9.5 8.7 Degree Utilization, x 0.58 0.84 0.53 0.87 0.08 0.85 0.22 0.93 Capacity (vehlh) 369 400 367 404 362 399 369 399 Control Delay (s) 23.5 42.8 21.2 46.2 12.3 44.3 13.9 56.6 Approach Delay (s) 35.2 37.2 41.6 49.0 Approach LOS E E E E Intersection Summary Delay 40.3 HCM Level of Service E Intersection Capacity Utilization 55.2% ICU Level of Service B Analysis Period (min) 15 Kimley Horn CISD Elementary School Build Out (2011) AM 2: CISD Entrance & White Chapel Blvd. t I Movement EBL EBR NBL NBT SBT SBR Lane Configurations r f 1� Sign Control Stop Free Free Grade 0% 0% 0% Volume (vehih) 14 128 156 171 209 17 Peak Hour Factor 0.33 0.33 0.33 0.85 0.85 0.33 Hourly flow rate (vph) 42 388 473 201 246 52 Pedestrians Lane Width (ft) Walking Speed (ft/s) Percent Blockage Right turn flare (veh) Median type TWLTL Median storage veh) 1 Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 1418 272 297 vC1, stage 1 conf vol 272 vC2, stage 2 conf vol 1147 vCu, unblocked vol 1418 272 297 tC, single (s) 6.4 6.2 4.1 tC, 2 stage (s) 5.4 tF (s) 3.5 3.3 2.2 p0 queue free % 74 49 63 cM capacity (vehih) 162 767 1264 Direction, Lane # EB 1 EB 2 NB 1 NB 2 SB 1 Volume Total 42 388 473 201 297 Volume Left 42 0 473 0 0 Volume Right 0 388 0 0 52 cSH 162 767 1264 1700 1700 Volume to Capacity 0.26 0.51 0.37 0.12 0.17 Queue Length 95th (ft) 25 72 44 0 0 Control Delay (s) 34.8 14.4 9.5 0.0 0.0 Lane LOS ❑ B A Approach Delay (s) 16.4 6.7 0.0 Approach LOS C Intersection Summary Average Delay 8.3 Intersection Capacity Utilization 34.0% ICU Level of Service A Analysis Period (min) 15 Kimley Horn CISD Elementary School Build Out PM 1: Dove Road & White Chapel Blvd. Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations 'fix T I T I T Sign Control Stop Stop Stop Stop Volume (vph) 27 166 11 96 183 24 18 94 129 17 118 55 Peak Hour Factor 0.75 0.69 0.62 0.62 0.51 0.53 0.80 0.84 0.74 0.75 0.82 0.72 Hourly flow rate (vph) 36 241 18 155 359 45 22 112 174 23 144 76 Direction, Lane ## EB 1 EB 2 WB 1 W8 2 NB 1 NB 2 SB 1 SB 2 Volume Total (vph) 36 258 155 404 23 286 23 220 Volume Left (vph) 36 0 155 0 23 0 23 0 Volume Right (vph) 0 18 0 45 0 174 0 76 Hadj (s) 0.53 -0.01 0.53 -0.04 0.53 -0.39 0.53 -0.21 Departure Headway (s) 7.9 7.3 7.5 6.9 8.0 7.1 8.2 7.4 Degree Utilization, x 0.08 0.53 0.32 0.77 0.05 0.56 0.05 0.45 Capacity (veh/h) 430 462 465 508 424 477 412 449 Control Delay (s) 10.3 16.9 12.8 28.4 10.2 17.7 10.4 15.2 Approach Delay (s) 16.1 24.0 17.2 14.8 Approach LOS C C C B Intersection Summa Delay 19.3 HCM 'Level of Service C Intersection Capacity Utilization 39.7% ICU Level of Service A Analysis Period (min) 15 Kimley Horn CISD Elementary School Build Out PM 2: CISD Entrance & White Chapel Blvd. t 4 ,/ Movement EBL EBR NBL NBT SBT SBR Lane Configurations " r + 1� Sign Control Stop Free Free Grade 0% 0% 0% Volume (vehlh) 11 97 79 145 190 9 Peak Hour Factor 0.33 0.33 0.33 0.84 0.82 0.33 Hourly flow rate (vph) 33 294 239 173 232 27 Pedestrians Lane Width (ft) Walking Speed (ft/s) Percent Blockage Right turn flare (veh) Median type None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 897 245 259 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 897 245 259 tC, single (s) 6.4 6.2 4.1 tC, 2 stage (s) tF (s) 3.5 3.3 2.2 p0 queue free % 87 63 82 cM capacity (veh/h) 254 793 1306 Direction, Lane # ES 1 EB 2 NB 1 NB 2 SB 1 Volume Total 33 294 239 173 259 Volume Left 33 0 239 0 0 Volume Right 0 294 0 0 27 cS H 254 793 1306 1700 1700 Volume to Capacity 0.13 0.37 0.18 0.10 0.15 Queue Length 95th (ft) 11 43 17 0 0 Control Delay (s) 21.3 12.2 8.4 0.0 0.0 Lane LOS C B A Approach Delay (s) 13.1 4.9 0.0 Approach LOS B Intersection Summary Average Delay 6.3 Intersection Capacity Utilization 28.3% ICU Level of Service A Analysis Period (rain) 15 Kimley Horn CISD Elementary School Roundabout Build Out (2011) AM 1: Dove Road & White Chapel Blvd. Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Right Turn Channelized Volume (veh/h) 118 246 11 155 258 48 20 160 106 58 177 102 Peak Hour Factor 0.53 0.78 0.42 0.77 0.90 0.70 0.64 0.85 0.67 0.70 0.74 0.71 Hourly flow rate (vph) 223 315 26 201 287 69 31 188 158 83 239 144 Approach Volume (veh/h) 564 557 378 466 Crossing Volume (veh/h) 523 442 621 519 High Capacity (veh/h) 916 978 847 919 High v/c (veh/h) 0.62 0.57 0.45 0.51 Low Capacity (veh/h) 739 794 678 742 Low v/c (veh/h) 0.76 0.70 0.56 0.63 Intersection Summary Maximum v/c High 0.62 Maximum v/c Low 0.76 intersection Capacity Utilization 55.2% ICU Level of Service B Kimley Horn CISD Elementary School Roundabout Build Out PM 1. Dove Road & White Chapel Blvd. Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Right Turn Channelized Volume (veh/h) 27 166 11 96 183 24 18 94 129 17 118 55 Peak Hour Factor 0.75 0.69 0.62 0.62 0.51 0.53 0.80 0.84 0.74 0.75 0.82 0.72 Hourly flow rate (vph) 36 241 18 155 359 45 23 112 174 23 144 76 Approach Volume (veh/h) 294 559 309 243 Crossing Volume (veh/h) 321 170 299 536 High Capacity (vehlh) 1076 1212 1095 907 High v/c (veh/h) 0.27 0.46 0.28 0.27 Low Capacity (veh/h) 882 1004 899 731 Low v/c (veh/h) 0.33 0.56 0.34 0.33 Intersection Summary Maximum v/c High 0.46 Maximum v/c Low 0.56 Intersection Capacity Utilization 39.7% ICU Level of Service A Kimley Horn