2025 3 10 Work Session Packet 1

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Mr. Helms, February 28, 2025, Page 3 
kimley-horn.com 10 Lea Avenue, Suite 400, Nashville, TN 37210 615 564 2701 
 
with accompanying remarks. This information will then be provided to City staff and agreed upon prior 
to further timing plan development. 
 
Task 3.4 – Cycle, Split, Offset, and Phase Sequence Development 
Once the cycle lengths for each p lan have been finalized, each intersection will be evaluated to 
determine the recommended phase splits for each vehicle movement. Phase sequencing and offset 
manipulation will be analyzed to develop the arterial greenbands. Recommended timing plans will be 
reviewed by City staff and approved prior to field implementation. 
 
Task 3.5 – Coding Sheet and TOD Clock Development 
Using the AADT counts, Kimley-Horn will develop a Time-of-Day (TOD) clock for each signal system 
to determine the optimal timing plan for each hour of a typical weekday for all 4 intersections. 
Furthermore, we will transfer the recommended timings for each intersection per timing plan into a 
coding sheet format that is compatible with the City’s signal controllers.  
 
Task 4 – Field Implementation 
Kimley-Horn will provide coding sheet data to Ci ty staff in electronic format consistent with the City’s 
various controller types. Kimley-Horn will conduct field observations of each signalized intersection.  
The field implementation will consist of up to t wo (2) consecutive weekdays.  Using the Time Space 
Diagrams ( developed in Synchro) for each signal, the coordinated timings will be verified as to 
effectiveness and fine -tuned as necessary.  Progression, as well as split times  and offsets, may be 
adjusted based on this observation. During field implementation any immediate adjustments recognized 
will be made that day in the field.  
 
Task 5 – Operational Analysis 
Kimley-Horn will provide a Operational Analysis Memorandum to the C ity that will incorporate the 
results from the field inventory. The memorandum will provide a summary of each intersection’s 
characteristics and any deficiencies in operation or condition that were recorded. The memorandum 
will incorporate a priority punch-list for the City of items that were discovered in the field that may require 
immediate or near-term resolution. 
Based on the findings from the inventory assessment and data analysis, Kimley-Horn will develop a list 
of recommended modernization initiatives for each traffic signal. A rough order of magnitude (ROM) 
cost estimates for  some of  the proposed modifications, considering factors such as equipment 
upgrades, signal timing optimization, and ADA compliance enhancements  (if necessary)  will be 
provided. 
As part of the memorandum, Kimley-Horn will create a Microsoft – Excel spreadsheet inventory of the 
data collected in the field. Kimley -Horn will submit a Draft Operational Analysis Memo and Inventory 
spreadsheet for City to review and comment. Based on the comments from the City, Kimley-Horn will 
modify the Draft Operational Analysis Memo and Inventory Spreadsheet and submit the final copies for 
the City’s use.  
 
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