Online implementation and evaluation of weather-responsive coordinated signal timing operations

Ying Chen, Hani S. Mahmassani*, Zihan Hong, Tian Hou, Jiwon Kim, Hooram Halat, Roemer M. Alfelor

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


This paper presents the development and application of weather-responsive traffic management strategies and tools to support coordinated signal timing operations with traffic estimation and prediction system (TREPS) models. First, a systematic framework for implementing and evaluating traffic signal operations under severe weather conditions was developed, and activities for planning, preparing, and deploying signal operations were identified in real-time traffic management center (TMC) operations. Next, weather-responsive coordinated signal plans were designed and evaluated with the TREPS method and a locally calibrated network. Online implementation and evaluation was conducted in Salt Lake City, Utah-the first documented online application of TREPS to support coordinated signal operation in inclement weather. The analysis results confirm that the deployed TREPS, which is based on DYNASMART-X, is able to help TMC operators test appropriate signal timing plans proactively under different weather forecasts before deployment and is capable of using real-time measurements to improve the quality and accuracy of the system's estimations and future predictions through detectors and roadside sensor coverage.

Original languageEnglish (US)
Pages (from-to)71-86
Number of pages16
JournalTransportation Research Record
StatePublished - 2015

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanical Engineering


Dive into the research topics of 'Online implementation and evaluation of weather-responsive coordinated signal timing operations'. Together they form a unique fingerprint.

Cite this