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MUTCD and Signalized Intersections

When - Where

October 6, 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 brief introduction to the history of traffic signals will illustrate the evolution of intersection traffic control through the years. The process of justifying the installation of a traffic signal will be discussed, exemplified and supported by a thorough explanation of the current MUTCD Warrants. Additional information on Part 4 of the MUTCD will be presented, focusing on the design and positioning of signal indications and illustrated with examples and tables. New MUTCD provisions, such as the optional use of "flashing yellow arrow" for permissive only or protected-permissive modes will be discussed. Guidance to design of pedestrian control features will also be provided. A description of commonly used terms in the traffic signal industry will include the definition of phase, a detailed explanation of the standard NEMA ring-and-barrier diagrams, the treatment of left-turn phases being followed by a presentation on operational characteristics of traffic signals.


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
History and Justification of Traffic Signals
MUTCD Signal Warrants
Traffic Signal Control Features
Pedestrian Control Features
Traffic Signal Terminology
Ring and Barriers
Traffic Signal Operational Characteristics


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.