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Item 4FCITY OF SOUTH LAKE MEMORANDUM (May 20, 2014) To: Shana Yelverton, City Manager From: Robert H. Price, P.E., Director of Public Works Subject: Ratify Amendments No. 1 and Amendment No. 2 of the professional services agreement with Teague Nall & Perkins for Traffic Signal Design — Carroll Avenue and Federal Way in the amounts of $5,475 and $5,490 respectively Action Requested: Ratify Amendment No. 1 and Amendment No. 2 of the professional services agreement with Teague, Nall & Perkins for Traffic Signal Design — Carroll Avenue and Federal Way in the amounts of $5,475 and $5,490 respectively. Background Information: In August of 2012, the Public Works Department contracted with a Traffic Engineering consultant to perform a traffic signal warrant analysis for the intersection of Carroll Avenue and Federal Way due to the development of heavy backups on westbound Federal Way at Carroll Avenue during the lunch time period as well as during the afternoon peak period. Based on the results of the aforementioned warrant analysis, the City Council adopted as part of the 2013 Capital Improvement Plan budget, the design and construction of a traffic signal at the intersection of Carroll Avenue and Federal Way. Subsequent to the initiation of design of the Carroll Avenue and Federal Way signal in early 2013, residents of the Lakewood Addition expressed their concerns to city staff that they were of the opinion that the location of a signal at the intersection of Southcrest/Division and Carroll Avenue was a more appropriate location for a traffic signal. The Lakewood Addition representative explained that in the future, when Division Street is extended across the north side of McPherson Park and/or State Street is extended across the western perimeter of McPherson Park, the location of a signal at Southcrest/Division and Carroll will be the more preferable location than at Carroll Avenue and Federal Way. The extension of Division across the northern side of the McPherson Park will take place at the time of development of the Cooper and Stebbins tract where the "dirt pile" was once located, just north of McPherson Park. Upon meeting with Lakewood Addition representative, a new Traffic Signal Warrant Analysis was performed for the intersection of Southcrest/Division and Carroll Avenue by the same Traffic Engineering consultant. The intersection was found to not meet the state required warrants for a signalized intersection based upon current traffic volumes, a copy of which is attached to this memorandum. In addition, the consultant was of the opinion that a traffic signal at Southcrest/Division and Carroll Avenue is located too close to the DPS emergency signal located just north of the intersection adversely impacting the operation of the DPS emergency signal. Subsequently, staff met with the Lakewood Addition representative in February of 2013 to present the results of the study. From the discussions in that meeting, staff was under the impression that he was satisfied with the results that had been provided. In December 2012, the City Manager approved a professional services agreement (design contract) in the amount of $49,960. Teague Nall and Perkins, Inc. was hired for the Traffic Signal Design — Carroll Avenue and Federal Way project. The project included the design of a traffic signal and right turn lane. The original professional services agreement included the basic services of: surveying, locating existing utilities, signal and westbound right turn lane design, and construction assistance. Design services are complete. In July 2013, Contract Amendment No. 1 in the amount of $5,475 was executed by the City Manager. Amendment No. 1 is for the exhibits and survey required for right of way acquisition on the west side of North Carroll Avenue for sidewalks and ADA curb ramps. Because Amendment No. 1 was approved by the City Manager, staff respectfully requests City Council ratify the City Manager's approval of Amendment No. 1. Amendment No. 2 is for modified right of way documents and design of the right turn lane based on discussions with the property owner dedicating the right of way. Survey of the agreed upon right of way dedication is included in this amendment. In the interest of time, this work was performed by the consultant and billed prior to having the Amendment No. 2 delivered to the City. Time was of the essence in order to acquire the right of way and begin construction in an effort to have the right turn lane constructed prior to the "Stars and Stripes 2014" event. There is also an eighteen to twenty week lead time on signal pole manufacturing. The goal is to have the traffic signal installed and operational prior to the "Home for the Holidays" events. Right of way acquisition is complete. Relocation of the franchise utilities (electric, gas, phone, etc.) has been coordinated with the utility companies and is in progress. Construction is anticipated to be complete by Stars and Stripes 2014. Financial Considerations: Funds for the engineering design of the Traffic Signal Design — Carroll Avenue and Federal Way project are included in the previously approved Capital Improvements Program project budget and are funded from Red Light Camera funds. Strategic Link: The construction of the Traffic Signal Design — Carroll Avenue and Federal Way project links to the city's strategy map relative to the focus areas of Mobility, Infrastructure and Performance Management and Service Delivery. The specific corporate objectives that are met by the construction of this project include: C2 - Provide travel convenience within the City and the region, 134 - Provide high quality customer service, and F2 - Invest to provide and maintain high quality public assets. Citizen Input/ Board Review: N/A Legal Review: This is the standard professional services agreement that has been previously reviewed by the City Attorney. Alternatives: The Council may approve the Amendments to the existing professional services agreement or deny them. Supporting Documents: Location Map Teague Nall and Perkins, Inc. Contract Amendment No. 1 Teague Nall and Perkins, Inc. Contract Amendment No. 2 Memo of Findings — Carroll at Southcrest Staff Recommendation: Ratify Amendment No. 1 andAmendment No. 2 of the professional services agreement with Teague Nall & Perkins for Traffic Signal Design — Carroll Avenue and Federal Way in the amounts of $5,475 and $5,490 respectively Staff Contact: Robert H. Price, P.E., Public Works Director Cheryl Taylor, P.E., CFM, Deputy Director Public Works Steven D. Anderson, P.E., CFM, Civil Engineer SUPPLEMENTAL AGREEMENT Project Name: Traffic Signal Design - Carroll Avenue and Federal Way TNP Project Number: SLK13044 City: City of Southlake 1400 Main Street, Suite 320 Southlake, TX 76092 The City of Southlake (the "CITY") hereby requests and authorizes Teague Nall and Perkins, Inc. (TNP or "CONSULTANT") to perform additional services as described below. AGREEMENT FOR ENGINEERING SERVICES, executed 12/31/12 is hereby modified and supplemented by the following: A. Basic Services Task 1.1.5 is modified as follows: 1.1.5 Identify and calculate ROW and/or easements necessary for right turn lane and 8' trail. Prepare a meets and bounds ROW exhibit from Carroll Avenue intersection to State Street for ROW dedication. Task 1.1.6 is added: 1.1.6 Prepare Sidewalk and Utility easements, one for each of two properties in the NW and SW corners of the Federal Way intersection with Carroll Avenue. COMPENSATION: Modified Task 1.1.5 - Additional Fee of $0 Additional Task 1.1.6 - Hourly Fee not to exceed $5,475 Total additional compensation will not exceed $5,475. SCHEDULE: Tasks 1.1.5 and 1.1.6 will be completed within 10 days of authorization. Please execute and return a signed copy for our files. Receipt of an executed copy of this contract will serve as notice to proceed. By signing below, the signer warrants that he or she is authorized to execute binding contracts for the CITY. Approved by CITY Acce ed by CONSULTANT City of S thlake T agu al anal er "ns, Inc. By: By. . I�i/14 Title: JIM_ Title: a i� ir?eerl" Date: %� Date: 7�/9�/3 SUPPLEMENTAL AGREEMENT Project Name: Traffic Signal Design - Carroll Avenue and Federal Way TNP Project Number: SLK13044 City: City of Southlake The City of Southlake (the "CITY") hereby requests and authorizes Teague Nall and Perkins, Inc. (TNP or "CONSULTANT") to perform additional services as described below. AGREEMENT FOR ENGINEERING SERVICES, executed 12/31/12 is hereby modified and supplemented by the following: A. Basic Services Task 1- Data Collection 1.1 Surveying Task 1.1.5 is supplemented as follows: Modify ROW and/or easements necessary for revised taking and for altered corner clips for right turn lane and 8' trail. Revise legal ROW description and exhibit from Carroll Avenue intersection to State Street for ROW dedication. Stake irons for new ROW. Task 2 - Signal and Westbound Right Turn Lane Design Task 2.16 is added as follows: Revise Signal Plans to relocate pole in NE corner and to revise pedestrian ramps to provide for revisions addressed in Task 1.1.5 above. Included provision for Contractor to furnish ornamental poles. COMPENSATION: Modified Task 1.1.5 - Additional Fee of $2,900 Additional Task 2.16 - Fixed Fee of $2,590 SCHEDULE: Completed in March and April, 2014. Revised ROW deliverable was submitted 3/20/14. Revised signal plans were delivered on 4/7/14. Page 1 of 2 Please execute and return a signed copy for our files. Receipt of an executed copy of this contract will serve as notice to proceed. By signing below, the signer warrants that he or she is authorized to execute binding contracts for the CITY. Approved by CITY City of Southlake Title: Date: Accepted by CONSULTANT Te Nall and rkins, Inc. By: Title: Traffic_ Engi erina Manager Date: 4/ 16/ 14 Page 2of2 t n p teague nall & perkins www.tnpinc c[ Memorandum To: Gordon Mayer, P.E. From: Suki Y. Hay, P.E. cc: Cheryl Taylor, P.E., Robert Jenkins, P.E. Date: 1 /31 / 13 � �oF� Etl �SUKI Y. HAY ` ../ �j 98748 r11 f1'e- t I CENSV� G1�� 1�S1ONAl��� �\\\%N9�0�2- 1 �s - Re: Intersection Signal Warrant Study - N. Carroll Avenue and Southcrest Court engineers surveyors landscape architects The City obtained the services of Teague Nall and Perkins, Inc. to investigate whether a signal is warranted at the intersection of N. Carroll Avenue and Southcrest Court. Data Collection Figure 1 shows the intersection location. The intersection of N. Carroll Avenue and Southcrest Court is located approximately 730 feet north of the intersection of N. Carroll Avenue and Federal Way (where a signal warrant study was conducted and met the MUTCD Warrants 1, 2, 3, 6, and 8). Southcrest Court mainly serves localized residential traffic. Figure 2 shows the aerial condition diagram with 24 hour volume counts. A bi-directional count was made on the Southcrest Court leg of the intersection (west of N. Carroll Avenue) on January 16, 2013. These counts were analyzed with the 24 hour northbound and southbound approach counts made at the intersection of N. Carroll Avenue and Federal Way on August 20 - 21, 2012. The 24 hour volume for the eastbound Southcrest Court approach totals 179 vehicles. The 24 hour data for Southcrest Court is included in this report. Signal Warrant Study Traffic signal warrants were evaluated for the existing conditions at the intersection. The warrant study indicates that the existing intersection operation does not meet the minimum threshold volumes of the primary MUTCD Warrants 1, 2, and 3. The Warrant Analysis Summary is included in this report. Conclusions The low hourly approach volumes on Southcrest Court do not warrant the installation of a traffic signal at this time. Additionally, this location is undesirably close to the emergency signal at the Public Safety Center and the proposed signal at Federal Way. Federal Way is approximately half way between SH 114 and Southlake Boulevard and, in addition to meeting signal warrants, provides a better location in regard to system timing for the arterial. Fort Worth- 1100 Macon Street- Fort Worth, Texas 76102- 817.336.5773 ^ Dallas- 17304 Preston Road, Suite 1340- Dallas, Texas 75252- 214-461,9867 Denton � 1517 Centre Place Drive, Suite 320 � Denton, Texas 76205 � 940.383.4177 , Sherman- 200 North Travis Street, suite 500-Sherman, Texas 75090- 903.870.1089 Registered by the Texas Board of Professional Engineers, Firm No. F-230 Registered by the Texas Board of Professional Surveyors, Firm No. 1001 16-00 The proposed signal at Federal Way should increase the number of northbound directional gaps in traffic on a daily basis, allowing the left turning vehicles exiting from Southcrest Court to have more frequent opportunities to enter the N. Carroll Avenue corridor with less conflict. Recommendations Under current traffic volume conditions, installation of a traffic signal is not warranted or recommended at the intersection of N. Carroll Avenue and Southcrest Court. Figure 1 - Intersection Location Page 2 of 4 Figure 2 - 24 Hour Counts & Condition Diagram Page 3 of 4 Warrant analysis Summary and 24 Maur Traffic Counts Page 4 of 4 Warrants Summary Report 1: Carroll Ave & Southcrest Court Intersection Information: Major Street Minor Street Street Name Direction N BISB EB Number of Lanes 2 2 Approach Speed 35 25 Warrant Met? Notes Warrant 1, Eight -Hour Vehicular Volume y Condition A or B Met? _ - - 0 Hours met (8 required) Condition A and B Met? �� =_,t_` 0 Hours met (8 required) Warrant 2, Four -Hour Vehicular Volume 0 Hours met (4 required) Warrant 3, Peak Hour Condition A Met? Condition B Met? 0 Hours met (1 required) _ No _ ] 0 Hours met (1 required) Federal 2009 1121 /2013 ZCO � m m LU 4.. a C d O .2 C L a o p o •� L L L o 0 c � C O i.: d La N C tij -0 1� N M L L M Q m C c U m OM != U z z c co U 0 CO •O z C r E �Q o? 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