Traffic Signal Technician Level III (Bench or Field)

March 06, 2018
8:00 AM - 5:00 PM
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Traffic Signal Senior Bench Technician Level III

Safety is of utmost importance. Traffic signals are life safety systems and need to be operated and maintained by only qualified personnel. Technology is changing rapidly in the traffic signal industry and it takes specialized training to be able to keep up with the technology being deployed. Many state and municipal agencies are requiring that individuals be IMSA certified to operate and maintain traffic signals.

Successful completion of the Microprocessor in Traffic Signals is required for Traffic Signal Senior Bench Technician Level III Certification.

For the Microprocessor in Traffic Signals exam, you will need to know:

    The History of the Microprocessor
    Number Systems and Computer Arithmetic
    Boolean Algebra

Integrated Circuits

    Architecture of Microprocessors

Basics of OperationInput and OutputProgramming Troubleshooting


One certification supplement exam is included with the Level II exam fee. An applicant may take both certification supplement exams, but must pay one additional exam fee.

Listed below you will see the recommended study materials for the basic Traffic Signal Senior Bench Technician Level III:

Traffic Signal Level III Bench Exam
Study Material Guidelines

NEMA traffic signal equipment functions and specifications for controllers, flashers, load switches & conflict. monitors. NEMA TS 1 Specifications
2101 L Street, N.W.
Washington. D.C  20037
  Manufacturer specific literature
Electronics  basic theory & digital gates IMSA Electronics in Traffic Signals Study Guide
Manufacturer specific literature
Traffic signal timing, coordination theory and practices IMSA Traffic Signal Senior Technician Level II Study Guide
170 type traffic signal controller assembly trouble shooting Your 5 years experience


The Exam- What does it cover?

The 100 question exam associated with the certification has been prepared to test the candidate on a wide range of topics relating to field expertise and general knowledge of the applied traffic signal technologies in the field.

The following list contains reference materials that the potential IMSA Traffic Signal Senior Field Technician Level III must be familiar with

NEMA Standards (TS1 and TS2)

170/2070 Standards

Various Traffic Detection Methods (Acoustic, Microwave, Radar, Loops, etc.) Setup and Configuration Manuals

Video Detection Manufacturers Setup Manual

Lightning Protection Devices

FHWA and ITE Vehicle Detection Manuals

Data Communications Methods (Copper, Fiber Optic, Wireless, etc.)

U.S. M.U.T.C.D. – 2009 Version

Signal Head Types (Incandescent, L.E.D., Programmable, etc.) specifications and installation methods

IMSA Wire and Cable Specifications 

ITE – Traffic Engineering Manual current edition

ITE – Traffic Control Devices Handbook current edition

Traffic Signal Preemption Devices – Various Manufacturers Operation and Setup Manuals

Understanding of Basic Electronics and Electrical 

U.S. – National Electrical Code and/or Canadian Electrical Code

Five Years Experience as a Traffic Signal Bench Technician 
IMSA Traffic Signal Bench Technician Level II Certification

Certification Requirements:
Pass the IMSA Traffic Signal Senior Bench Technician Level III exam
Pass the IMSA Microprocessors In Traffic Signals Technician exam

Please note that meals, hotels and transportation are not included.

You MUST bring a current Work Zone Certificate to the Class.  

There is one free retake on the exam if you fail.  This retake will be for an existing class exam day.  We may can arrange for a retake a different day for an administrative fee.


Hilton Garden Inn
100 E Constance Rd
Suffolk, VA 23434
Google Map Location


$295.00 Member Challenge Exam March 6

$325.00 Non Member Challenge Exam March 6

$295.00 Member Challenge Exam March 8

$325.00 Non Member Challenge Exam March 8