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Many of NHI Web-Based Training courses are currently off line to address required updates. Our technical team is diligently working to complete the updates and the updated courses will be posted as they become available. We estimate all courses to be available by mid-December.

Please note that not all NHI Web-Based Training courses are unavailable, please check the online catalog for course availability. For example, course FHWA-NHI-133126A Traffic Incident Management Responder Training is currently available.

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Search for courses based on delivery type, program area, or topic below, or find upcoming trainings in your state or territory. For more information on trainings from the National Highway Institute, contact us.

Course Description

Traffic Signal Timing Concepts

PROGRAM AREA: Design and Traffic Operations
Instructor-led Training (ILT)Instructor-led Training (ILT)
Calendar Year
Host Price
2 Days
1.2 Units
$325 Per Participant
2 Days
1.2 Units
$650 Per Participant

TRAINING LEVEL: Intermediate

CLASS SIZE: Minimum: 20 Maximum: 30


Traffic Signal Timing Concepts is a two-day course to assist in building technical expertise in signal timing by focusing on the relationship between network context and operational objectives to inform the design of signal timing parameters. The course will expand on the traditional signal timing process by incorporating an objectives and performance driven approach that leads to selection of appropriate computational methods for design and operation of traffic signal timing.

For many agencies, the design of signal timing parameters is an exercise in data collection and software driven optimization in response to citizen compliants. An ad-hoc complaint-driven processes with little documentation and infrequent attempts to quantify performance or improvements is not likely to lead to a well-managed, objective driven process for the timing and retiming of traffic signals, nor does it typically provide agencies with a good feel for the overall performance of their system. What is needed is an objective-driven, performance-oriented approach to traffic signal timing.

This course is very interactive and includes many exercises. Participants calculate various timing parameters by hand so they should bring a calculator to the course.

Completion of NHI #133121 is recommended but not required.


Upon completion of the course, participants will be able to:

  • Discuss an objectives-based signal timing process
  • Describe operations objectives in the context of network configuration and traffic conditions
  • Review phasing and timing
  • Design cycle lengths
  • Design green time and fixed intervals
  • Design phase sequence and offsets
  • Develop operational mode parameters
  • Evaluate signal timing outcomes


Traffic Signal Timing Concepts is a two-day course for practitioners involved in or responsible for design, operations, or management of traffic signals including State/MPOs/Local Government personnel and consultants and contractors.

If you have questions about this NHI training, please contact NHI at or 877.558.6873.


None, completion of NHI #133121 is recommended but not required.


There are no sessions available. Sign up for session alerts to receive email alerts when sessions of this course are scheduled.

Host this Course

The National Highway Institute (NHI) has been accredited as an Accredited Provider by the International Association for Continuing Education and Training (IACET). In obtaining this accreditation, NHI has demonstrated that it complies with the ANSI/IACET Standard which is recognized internationally as a standard of good practice. As a result of their Accredited Provider status, NHI is authorized to offer IACET CEUs for its programs that qualify under the ANSI/IACET Standard.


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