SMART-SIGNAL: Systematic Monitoring of Arterial Road Traffic and Signals

Monday, November 26, 2007 - 9:15am

About the Event

Performance monitoring for arterial traffic control and management systems is an area of emerging focus in the United States. As indicated by the results of the 2005 Traffic Signal Operation Self-Assessment Survey, the majority of agencies involved in the operation and maintenance of traffic signal systems do not monitor or archive traffic system performance data and thus have limited means to improve their operation. This is changing as advances in computer and telecommunication technologies enable traffic management system operators to improve the tools and methods used to collect traffic signal data.

In this project, researchers from the University of Minnesota have successfully built a system for high resolution traffic signal data collection and performance measurement. The system, named SMART-SIGNAL (Systematic Monitoring of Arterial Road Traffic and Signals), is able to simultaneously collect and archive event-based traffic signal data at multiple intersections and automatically generates real-time performance measures including travel time, number of stops, queue length, and intersection delay and level of services, etc. The SMART-SIGNAL system has been deployed at 11 intersections along France Avenue in Hennepin County, Minnesota since February 2007 and will be deployed on TH55 for another six intersections in December 2007. The SMART-SIGNAL system has demonstrated superb performance at France Ave, and it is promising for large-scale deployment.


Henry Liu, Department of Civil Engineering, University of Minnesota