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Signal Timing

When - Where

October 13, 2022

(8:30 a.m. - 4:30 p.m. Central Time)


6 Professional Development Hours can be granted for this course. No partial credit available. Attendees must attend at least 90% of the workshop to get 6 PDHs.

Ellington Agricultural Center
UT Extension Office
5201 Marchant Dr.
Nashville, TN  37211-5112
Tel: 615-832-6550 for directions

Register ONLINE here.


Register by fax or mail. Click here to download the brochure.


A discussion on traffic signal timing objectives, benefits and characteristics will lead to the presentation of basic traffic flow principles and traffic signal timing strategies. Isolated signal timing, covering pre-timed and actuated operation will be followed by relevant information on coordinated signal timing. A step-by-step signal timing example will provide the opportunity to explore guidelines on the calculation of signal timing parameters for different modes of operation under different scenarios, covering cycle length, change and clearance intervals, vehicular and pedestrian intervals, etc. An overview of analysis procedures and signal timing tools will briefly instruct on how to evaluate signalized intersection performance.


Since 2010, the Traffic Signal Academy has provided services to over 1,000 participants in 6 different courses. Federal, state, county and city agencies plus consultant firms have attended our classes.


Airton G. Kohls, Ph.D.
Dr. Kohls is a Research Associate at the University of Tennessee's Center for Transportation Research. He holds a B.S., M.S. and a Ph.D. degree in Civil Engineering from the University of Tennessee. He has twelve years of practical experience in Traffic Engineering with both public and private agencies. Dr. Kohls serves as an Adjunct Assistant Professor with the University of Tennessee, Department of Civil Engineering, teaching Traffic Engineering Operations.


Opening Remarks, Introduction
Signal Timing Example and Guidelines

  • Phasing
  • Left-turn warrants
  • Cycle length
  • Clearances
  • Pedestrian timings, etc

Actuated Operation - Guidelines
Coordination Guidelines
Analysis Procedures


Fee ($150 per day) The workshop registration includes course materials and refreshments for onsite workshops only. Attendees are responsible for meals and lodging. See additional information on the website under Location and Facilities.

Register ONLINE here.


Register by fax or mail. Click here to download the brochure.