2025 3 10 Work Session Packet 1

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Mr. Helms, February 28, 2025, Page 2 
kimley-horn.com 10 Lea Avenue, Suite 400, Nashville, TN 37210 615 564 2701 
 
▪ Detection Type, Manufacturer and Assignment and Condition 
▪ Intersection Geometry  
▪ Signal Phasing and Existing Timing Data 
▪ Signal Head Types and Condition 
▪ Overhead Sign Types and Condition 
▪ Any Other Traffic Signal Related Equipment Found On-site 
 
Task 2.2 – Turning Movement Counts (TMCs) 
8-hour TMCs will be performed at each of the four (4) signalized intersections and one (1) unsignalized 
intersection from 6:00AM – 9:00AM, 11:00AM – 1:00PM, and 3:00PM – 6:00PM on a typical weekday. 
Field observations will be made during every peak period to inform the future signal timing plans. 
 
Task 2.3 – Evaluation of Existing Conditions 
Using the data collected in the field and knowledge of the existing conditions observed during the field 
observations, a network will be developed by Kimley-Horn to model each peak period using Synchro. 
Existing geometry, traffic volumes, and signal timing parameters obtained in Task 2.1 will be  
incorporated into a Synchro model.  
 
Task 3 – Signal Timing Optimization Services 
Kimley-Horn will prepare optimized timing plans for the four (4) signalized intersections listed above. 
Permission and access to the City’s traffic signal cabinets  will be required for this effort.  Information 
contained within the completed operational analysis will be used for signal timing development and 
implementation. 
 
Task 3.1 – Timing Plan Development Services 
Kimley-Horn will prepare up to three (3) timing plans for each of the signalized corridors as follows:  
 
▪ Weekday AM peak 
▪ Weekday Mid-Day (MD) peak 
▪ Weekday PM Peak timing plan  
 
Task 3.2 – Local Controller Settings Development 
Using the criteria set forth in the TDOT Traffic Design Manual and the Federal Highway Administration’s 
(FHWA) Manual on Uniform Traffic Control Devices with Revisions 1, 2, and 3 Incorporated, dated July 
2022, Kimley -Horn will calculate and recommend values for the following local controller settings 
(minimum vehicular green, yellow c hange interval, red clearance interval, pedestrian walk time, and 
pedestrian clearance interval). These values will be tabulated in a spreadsheet format and shared with 
City staff for review and comment. 
 
Task 3.3 – Cycle Length Evaluation 
Kimley-Horn will perform peak hour cycle length evaluations in Synchro by evaluating the natural cycle 
lengths and coordinatability factors  (provided by Synchro)  for each signal. Using evaluations from 
Synchro along with knowledge gained via observations in the field, a cycle length will be recommended 
for each timing plan. Preliminary cycle length recommendations will be tabulated for staff review along 
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