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TR9302-CS 920129January 29, 1992 Mr. Dannie R. Cummings, P.E. J.B.M. & Associates Inc. 17440 Dallas Parkway, Suite 242 Dallas, TX 75287 Subject: Request for Technical Qualifications Re: Traffic Light Synchronization (TLS) Program II Dear Mr. Cummings: This is a request for qualifications from your firm to provide professional traffic engineering services in connection with the above referenced project. On January 14, 1992, the City Council approved the TLS grant agreement with TexDOT, and staff is in the process of selecting an engineering firm to provide related services. The general scope of work, which will be discussed in more detail, is outlined below: - Field check equipment. - Traffic data collection, such as 24 hr. counts, peak-hour turning movement, intersection inventories, travel time runs, etc. - Calibration of related computer model. - Implementation and fine tuning of timing plans. - Development of "Before" field evaluation. - Completion of "After" field evaluation. Please submit your interest and technical qualifications related specifically to this type of services, on or before the close of the work day, at 5:00 P.M. on Monday, February 10, 1992. Upon receipt of responses from selected qualified consultant firms, the engineering selection process will commence. I look forward to hearing from you, and if you have any questions, please call M. Shohre Daneshmand, P.E., or myself at (214) 393-1016. Sincerely, Kenneth M. Griffin, P.E. City Engineer KMG/MSD/bd ATTACHMENTS cc: Jim Ragsditl, Purchasing Agent ~ The City With A Beautiful Future 214-462-0022 January 29, 1992 Mr. Thomas J. Simerly, P.E. DeShazo, Starek & Tang, Inc. 330 Union Station Dallas, TX 75202 Subject: Request for Technical Qualifications Re: Traffic Light Synchronization (TLS) Program II Dear Mr. Simerl¥: This is a request for qualifications from your firm to provide professional traffic engineering services in connection with the above referenced project. On January 14, 1992, the City Council approved the TLS grant agreement with TexDOT, and staff is in the process of selecting an engineering firm to provide related services. The general scope of work, which will be discussed in more detail, is outlined below: - Field check equipment. - Traffic data collection, such as 24 hr. counts, peak-hour turning movement, intersection inventories, travel time runs, etc. - Calibration of related computer model. Implementation and fine tuning of timing plans. - Development of "Before" field evaluation. - Completion of "After" field evaluation. Please submit your interest and technical qualifications related specifically to this type of services, on or before the close of the work day, at 5:00 P.M. on Monday, February 10, 1992. Upon receipt of responses from selected qualified consultant firms, the engineering selection process will commence. I look forward to hearing from you, and if you have any questions, please call M. Shohre Daneshmand, P.E., or myself at (214) 393-1016. Sincerely, Kenneth M. Griffin, P.E. City Engineer ~{G/MSD/bd ATTACHMENTS cc: Jim Ragsdill, Purchasing Agent Coppell, Texas 75019 The City With A Beautiful Future 214-462-0022 January 29, 1992 Mr. Donald R. Glenn, P.E. Barton-Aschman Associates, Inc. 5485 Belt Line Road, Suite 199 Dallas, TX 75240 Subject: Request for Technical Qualifications Re: Traffic Light Synchronization (TLS] ProGram II Dear Mr. Glenn: This is a request for qualifications from your firm to provide professional traffic en§ineerin§ services in connection with the above referenced project. On January 14, 1992, the City Council approved the TLS Grant agreement with TexDOT, and staff is in the process of selecting an enGineerin§ firm to provide related services. The General scope of work, which will be discussed in more detail, is outlined below: - Field check equipment. - Traffic data collection, such as 24 hr. counts, peak-hour turninG movement, intersection inventories, travel time runs, etc. - Calibration of related computer model. - Implementation and fine tuning of timing plans. - Development of "Before" field evaluation. - Completion of "After" field evaluation. Please submit your interest and technical qualifications related specifically to this type of services, on or before the close of the work day, at 5:00 P.M. on Monday, February 10, 1992. Upon receipt of responses from selected qualified consultant firms, the enGineerinG selection process will commence. I look forward to hearinG from you, and if you have any questions, please call M. Shohre Daneshmand, P.E., or myself at (214) 393-1016. Sincerely, Kenneth ~. Gr±ff±n, P.E. C±t7 Engineer K~G/~SB/bd AT?~Ch'IqENTS cc: J~m Ra~sd±ll, Purchas±nG ~Gent Coppell, Texas 75019 ~(~~ The City With A Beautiful Future 214-462-0022 ~a~n~uary 29, 1992 Mr. Roy L. Wilshire, P.E. Kimley-Horn & Associates, Inc. 12660 Colt Road, Suite 200 Dallas, TX 75251 Subject: Request for Technical Qualifications Re: Traffic Light Synchronization (TLS) Program II Dear Mr. Wilshire: This is a request for qualifications from your firm to provide professional traffic engineerin§ services in connection with the above referenced project. On January 14, 1992, the City Council approved the TLS grant agreement with TexDOT, and staff is in the process of selecting an engineerin§ firm to provide related services. The §eneral scope of work, which will be discussed in more detail, is outlined below: - Field check equipment. - Traffic data collection, such as 24 hr. counts, peak-hour turning movement, intersection inventories, travel time runs, etc. - Calibration of related computer model. - Implementation and fine tuning of timing plans. - Development of "Before" field evaluation. - Completion of "After" field evaluation. Please submit your interest and technical qualifications related specifically to this type of services, on or before the close of the work day, at 5:00 P.M. on Monday, February 10, 1992. Upon receipt of responses from selected qualified consultant firms, the engineering selection process will commence. I look forward to hearing from you, and if you have any questions, please call M. Shohre Daneshmand, P.E., or myself at (214} 393-1016. Sincerely, Kenneth M. Griffin, P.E. City Engineer ~{G/MSD/bd ATTACHMENI~ cc: Jim Ragsdill, Purchasing Agent ! Coppell, Texas 75019 ~~~, The City With A Beautiful Future 214-462-0022 -, FACSINILE NO. 214/393-0948 PLEASE DELIVER THE FOLLO"ING PACES TO: [ ~//Off I~' TRANSHITTED BY..~~~ ~,__ OUK FAX NO.: 214/393-0948 NUHBER OF PAGES (INCLUDING COVER SHEET: ~ (~ REMARKS IF YOU ~0 NOT ~v. CEIVE ALL OF THE PACESv PLEASE CALL BAC~ AS SOOH AS ~,OSSXSLE. Tm~'S0~ NO'. (217) ~,S2--0022 ~ ~S~ ~O~' ~S/~-S~y. ~a~ ~SI.S THAk~ YOU. Coppell, Texas 75019 The City With A 1'3eautiful Future 214- 452- 0022 PACS]~4/LE NO. 21~/393-09~8 FAX V, AIL COVER PAG~'~ ~ PLEASE DELIVER THE FOLLOWING PAGES TO: ,~ OUR F&X NO. :216/393-09&8 NUHBER OF PAGES (INCLUDING COVER SHEET: POSSIBLE. TKLKPHONE NO*- (21~) ~62-0022 ABD AS~ ,~.u,PnS~.,,-Snm. mG THZS FAX. ~ YOU.  P.O. Box 478 Coppell. Texas 75019 The City With A Beautiful Future 214-462- 00/22~ / / FACSIHILE NO 214/393 FAX VAIL COVER PAGe'- ~ PLEASE DELIVER TItE FOLLOIdING PAGES TO: NUI~BER OF PAGES (INCLUDING COVER SHEET: RE)lARKS IF YOU DO NOT KECEIVE ALL OF THE POSST~,.~. T~LZPBONE NO: ~ YOU. Coppell, Texas 75019 214 462 O022 The City With A Beautiful Future - - FACSINILE NO. 2t&/393-09~8 FAX ~,AIL COVER PAG~~ ~/,~j:_~_____~, PLEASE DELIVER TliE FOLLOWING PAGES TO: . ~,ossz_~_.E. TELEPU0NE ~O. (2~?) ~,62--0022 An AS~ ~ ~.~ SnU. nl~: TH~.S FAX, THANE -. APPLICANT CITY OF COPPELL ATTACHMENT B PROJECT AREA MAPS Attach two 8 1/2" x 1 1" maps as described below. A. A map showing the locale of each proposed TLS project within your jurisdiction. B. A map showing the signalized intersections of each system with the following information: 1. Average Daily Traffic 2. Circulation Pattern (Identify One-Way Streets) 3. A Scale or Identification of the Distance Between Adjacent Signals Parkwa, y Blvd. Not to Sc~e S~md~ Lake Rd. Wrangler MAP B SYSTEM INFORMATION City of Coppell _ APPLICANT CITY OF COPPELL ATTACHMENT C DESCRIPTION OF PROJECT System Name: Denton Tap Road No. of intersections: 6 System Co~figuration: Grid Arterial X System Coordination: Hardwire Proposed Time-Based System Controller: Type See Below Maximum # of Time-of-Day Plans: Current # of Time-of-Day Plans: Indicate below each time period cycle length: AM Period Mid*Day Period PM Period Last Date Timing Plans Revised for the Entire System: Average Signal Spacing: All intersections currently operate in fully-actuated mode under isolated control. The intersection controller models are: Wrangler - Multi-Sonic 820A Belt Line - Multi-Sonic 820A Bethel Rd - Multi-Sonic 820A Bethel School - Multi-Sonic 820A Sandy Lake - AC 800 TRAFTECH Parkway Bivd - Multi-Sonic 820A APPLICANT CITY OF COPPELL ATTACHMENT C DESCRIPTION OF PROJECT System Name: MacArthur Boulevard No. of Intersections: 1 System Configuration: Grid Arterial System Coordination: Hardwire Time-Based System Controller: Type LFE CORP Model 314 Maximum # of Time-of-Day Plans: Current # of Time-of-Day Plans: Indicate below each time period cycle length: AM Period Mid-Day Period PM Period Last Date Timing Plans Revised for the Entire System: Average Signal Spacing: This intersection currently operates in fully-actuated mode under isolated control. APPLICANT CITY OF COPPELL ATTACHMENT C DESCRIPTION OF PROJECT System Name: Belt Line Road No. of Intersections: 2 System Configuration: Grid Arterial X System Coordination: Hardwire Time-Based Proposed System Controller: Type See Below Maximum # of Time-of-Day Plans: Current # of Time-of-Day Plans: Indicate below each time period cycle length: AM Period Mid-Day Period PM Period Last Date Timing Plans Revised for the Entire System: Average Signal Spacing: All intersections currently operate in fully-actuated mode under isolated control. The intersection controller models are: Moore - Eagle DP9000 Mockingbird - Eagle DP9000 APPLICANT CITY OF COPPELL ATTACHMENT D QUALITY OF SERVICE STUDY METHOD (For Small and Medium Cities ONLY) The applicant is to use the following instructions to conduct quality of service tests of signals proposed to be included in the project. The attached "Quality of Service" Summary is to be completed and submitted with the application. Introduction Establishing the demand for traffic signal retiming projects is particularly difficult unless extensive data collection and analysis is performed beforehand. Since such effort is an - integral part of the project being proposed, it is beyond the scope of preliminary needs assessments associated with the grant application. Consequently, the TLS program will require a simple study of travel time performance for each project proposal which should be in the range of capabilities of applying local governments and provides a reasonable summary of the operational situation. This study is just a part of the review process, and will be used as an inexact guideline to assist in project selection and prioritization. General Description The travel time study methods defined here are not intended to be conclusive or statistically comprehensive, but rather to be implementable by any local government using only a vehicle and a stopwatch. The study will be a general summary of delay on each street of the project. Data should only be collected on Tuesdays, Wednesdays and Thursdays. The study will cover only the peak period, as defined by the applicant. Applicants are encouraged to use the most heavily travelled time period of a typical day to establish the typical worst case. Travel times on all streets will be done during this time period, according to the following methodology. Study Methodology An intersection is defined as a junction of streets controlled by a traffic signal which is part of the project being proposed. Travel time runs will be performed in all legal directions on each street in the project. A run is defined as a trip from the first network or arterial signal to the last network or arterial signal in one direction. For grid networks, two runs in each direction will be done for each network street that passes through two or more network signals. For arterial systems, three runs in each direction will be done. The time of crossing the stop line at the first signal will be recorded (or the stop-watch will be started) and the time of clearing the last intersection will be recorded (or the stop-watch will be stopped). The driver of the study vehicle should attempt to approach the first signal in a grid system once at the beginning and once during the middle of the green phase. The arterial, at the beginning, one-third point, and two-thirds point of the green phase. The driver should then attempt to drive the length of the street at the posted speed limit. Delay will be caused when other vehicles or traffic control devices impede the progress of the study vehicle, and the driver should not take extraordinary measures to avoid delay. Generally, the driver should stay in the most typically used through lane (such as the center or median lane). Accompanying the travel time run will be a description of the street geometry for each section of the street. A section is defined as the portion of the street extending from the stop line of one controlled intersection to the stop line of the next controlled intersection downstream. Section length, number of lanes, and posted speed limit should be recorded. If the posted speed changes in the section, a weighted average should be calculated based on distance. For example, a section of street is 800 feet long, and is posted for 30 mph in the direction under consideration for 500 feet and 40 mph for 300 feet. The average posted speed would be: (30 mph x 500 feet) + (40 mph x 300 feet) 800 feet = 33.75 mph Number of lanes is measured at the stop line at the beginning of the section, not including turn bays. For each street, average daily traffic counts should be provided. Data up to five years old is acceptable as long as significant changes in traffic patterns have not occurred. Free flow travel time should be calculated assuming no stops and traffic flow at the average posted speed limit. The free flow travel time for each section is the section length divided by the speed in feet/sec. Speed in mph is converted to feet/sec by multiplying by 1.47. The total free flow travel time is the total of the section free flow travel times. The delay is the difference between free flow travel time and actual travel time, averaged from the travel time runs. For example, a street contains two sections. Section 1 is 800 feet and has a 35 mph average posted speed limit, and Section 2 is 1200 feet long and has a 40 mph average posted speed limit. The free flow travel time would be: 800 feet 1200 feet 35 mph x 1.47 + 40 mph x 1.47 = 36 seconds The Quality of Service Summary form has bee provided to allow the convenient organization of this data. One form should be filled out for each combination of street and direction. Applicants should duplicate the form as necessary. Summary The procedure outlined here will provide a rough synopsis of the existing typical worst case situation using data that can be collected very quickly. For arterial systems, only data along the arterial is necessary. The runs have been defined to eliminate the inclusion of boundary conditions (such as side street delay on an arterial), which, though they may inhibit a complete understanding of the situation, will allow arterial and grid networks to be compared in a similar light.