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Item 6B (2)CEE" Kimley -Horn and Associates, Inc. EXECUTIVE SUMMARY This report documents a traffic impact analysis performed for the Carroll Independent School District (CISD) Middle School located west of Kimball Avenue between E. Highland Street and future Kirkwood Boulevard in the City of Southlake, Texas. The proposed development will be located east of Blessed Way. Based on information provided by CISD and Hart, Gaugler & Associates, Inc., the CISD Middle School site will be designed to accommodate approximately 750 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 e software. The scenarios are detailed in the table below. Analysis Scenario Summary Scenario Roadway Conditions Development Assumptions Traffic Volumes Existing (2007) Existing Existing Existing Existing + Blessed Way +!/2 Existing + 2 years of Kirkwood Blvd. (between Background Growth Build Out Background Blessed Way and Kimball Avenue) + Kimball Avenue Existing + o at 6% per year + (2011) widening to an A4D from Gateway Gateway Church Gateway hurch �. AM & PM SH 114 WBFR to south of school peak) E. Highland Street Existing + Blessed Way + 1/ Existing +2 years of Kirkwood Blvd. (between Existing + Background Growth Build Out Blessed Way and Kimball Gateway Church at 6% per year + (2011) Avenue) +Kimball Avenue widening to an A41) from + CISD Middle Gateway Church : (AM & PM SH 114 WBFR to south of School peak) school p. ) E. Highland Street + CISD Middle School Traffic Impact Analysis 111 July 2009 CISD Middle School, Southlake, Texas LIM" Kimley -Horn and Associates, Inc. Based on the analyses perfonrled during this traffic impact study, we offer the following conclusions and recommendations (see also Exhibit 12): 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 BM school peak hour with the exception of the eastbound approach of Dove Road at Kimball Avenue during the AM school peak. The City of Southlake should considering installing a right -turn lane on the eastbound approach of the intersection of Kimball Avenue & Dove Road. This improvement would bean interim solution to the reconstruction of the entire intersection as part of the Kimball Avenue Phase.2 widening project. Based on the existing traffic volumes, Kimball Avenue should be widened to four -lanes Based on discussions with the City, Phase 1 of the Kimball Avenue widening project (from SH 114 WBFR to south of E. Highland Street) will be constructed by opening day of the CISD Middle School. Build Out Year (2011) Background Traffic Conclusions & Recommendations: Based on. the analysis of the Build Out Year (2011) background traffic conditions, the study area intersections are projected to operate at an acceptable level of service during the AM and PM school peak hour with the anticipated roadway network in place with the exception .of the intersections of Kimball Avenue & Dove Road and Kimball Avenue & E. Highland Street. The City should. consider moving forward with Phase 2 of the Kimball Avenue project to allow the studied :intersections to operate an acceptable level of service. Build Out Year (2011) Traffic Conclusions & Recommendations: A temporary asphalt westbound deceleration lane (110' deceleration + 50'. storage) should be installed at the CISD Middle School's primary entrance. This deceleration lane serves a dual purpose; (1) provides an additional lane on Kirkwood Boulevard so that vehicles entering the site will not interfere with the other thru movements, and (2) the deceleration lane will provide additional room for vehicle storage (although queue spillback from drop-off/pick-off traffic is not anticipated)..` Based on the anticipated school site distribution and volumes, an eastbound left -turn lane from Kirkwood Boulevard into the CISD Middle School's primary entrance should also be provided. With the current roadway network, the eastbound left-turn lane is not needed for the CISD Middle School's opening day. However, due to the uncertainty associated with the extension and widening of Kirkwood Boulevard, a eastbound left -tum lane should be constructed along Kirkwood Boulevard at the CISD Middle School's primary entrance. The northbound approach of intersection of Blessed Way & Kirkwood Boulevard should be restriped to include a shared thru -left and dedicated right -tum lane. The southbound approach of Blessed Way & Kirkwood Boulevard should be striped with a shared thru -right and a dedicated left -turn lane. This intersection should also be striped with crosswalks since it is anticipated that the Gateway Church lot will be utilized as an overflow parking facility for the CISD Middle School. Install a "R8 -5" sign (No Stopping on Pavement) could be installed along E. Highland Street to assist in preventing student drop -offs near Blessed Way (Emergency Access Road). R Traffic Impact Analysis iv July 2009 CISD Middle School, 5outhlake, Texas 12 KWey -Horn and Associates, Inc. Based on field observations, the CISD Middle School site drive along Kirkwood Boulevard will be constructed to provide adequate site distance. Install a school zone according to the TMUCTD (200 feet from the crosswalk or from the first driveway on school property, whichever is encountered first as traffic approaches the school) along Kirkwood Boulevard. The two -lane section of Kirkwood Boulevard with dedicated turn -lanes is projected to adequately serve the CISD Middle School on opening day. Future Traffic Recommendations: The City of Southlake should extend Kirkwood Boulevard to Carroll Avenue. This connection would provide an additional east -west access point and would reduce the amount of u -turn traffic at Kimball Avenue by allowing motorist to use Carroll Avenue (from points west of the site on SH 114) to access the CISD Middle School, Gateway Church, or any other future development in the area. This connection would provide congestion relief to Kimball Avenue's intersections with Kirkwood Boulevard and Dove Road. In addition, this connection would also eliminate the potential for east -west "cut- through" trips on E. Highland Street. A summary of recommendations is shown on Exhibit 13. Traffic Impact Analysis V July 2009 CISD Middle School, Southlake, Texas Kimley -Horn and Associates, Inc. RP R VII, BUILD OUT (2011) SITE TRAFFIC CHARACTERISTICS A. PROPOSED SITE TRIP GENERATION Traffic projections were prepared for the proposed development based on the trip generation rates found in the Instifule 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 C1SD Middle School site will consist of a school designed to accommodate 750 students. The trip generation rates assumed for the proposed development are given in Table 12. The calculated number of trips from these rates represents vehicle trips. Table 13 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 frorn the adjacent street system. No adjustments were made for internal capture or pass -by trips. Table 12 - Estimated Trip Generation Rates AM School Peak PM School Peak Land Use Weekday Hour Hour Description 1 Rate 1 In:Out Rate I In: Out Rate 1 In :Out ITE Code Equation Split Equation Split Equation. Split Out Total In Out Total Middle 750 Middle School 1.62 (X) 50:50 0.54 (X) 55:45 0.31 (X) 45:55 ITE # 522 233 School Students Numbers of Trips Generated= Trip Rate (Development Unit) X = Number of Students Table 13 - Estimated Trip Generation -- Peloton Real Estate Partners Office. PM School Peak ITE Daily AM School Peak Hour Land Use Intensity Units Code Total In Out Total In Out Total Middle 750 Number of 522 1,215 223 182 405 105 128. 233 School Students Traffic Impact Analysis 22 July 2004 CISD Middle School, Southlake, Texas 9