CTRE

Center for Transportation Research and Education

CTRE|Research|In-Progress

Evaluation of the Traffic Signal Timing Manual, Third Edition

Project Details
STATUS

In-Progress

START DATE

04/16/24

END DATE

04/15/26

FOCUS AREAS

Safety

RESEARCH CENTERS InTrans, CTRE, REACTOR
SPONSORS

National Cooperative Highway Research Program (NCHRP)

Researchers
Principal Investigator
Christopher Day

Research Scientist, CTRE

Co-Principal Investigator
Kevin Lee

Researcher, Illumine Transportation

Co-Principal Investigator
Edward Smaglik

Researcher, Northern Arizona University

Co-Principal Investigator
Anuj Sharma

Co-Director, REACTOR

Co-Principal Investigator
Keith Riniker

Researcher, Mead & Hunt

Co-Principal Investigator
Kevin Chang

Researcher, University of Idaho

About the research

This research project seeks to develop guidance on updating the Signal Timing Manual (STM) to incorporate the results of research products developed after the publication of the second edition (STM2). The research will evaluate the current manual content and structure and develop a portfolio of content centered around an updated third edition (STM3). In addition to integrating new technical content, this research will establish a roadmap for future long-term maintenance of the STM as a document to serve as a knowledge base for traffic signal timing, by investigating how the STM is currently used, identifying the audiences for the manual, and whether this user base has additional needs that can be better served with refinement of the document.

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