Road Weather Management Program
photos of lightning, trucks plowing snow, an empty road before a storm, and an evacuation
Office of Operations 21st century operations using 21st century technologies

Best Practices for Road Weather Management Version 2.0

Best Practices > Publications > Publication Titles

Title:

Weather-Responsive Traffic Signal Control

Abstract:

This paper explores general weather impacts on arterial roads and traffic flow, and examines the development of tools to improve traffic signal operations. Six studies which quantify the impacts of inclement weather on arterial operations documented delay increases, reductions in average speed, lower free-flow speeds, decreased volume, and reduced saturation flow rates. Two case studies of weather-responsive signal control operations, which have resulted in improved arterial mobility, are described. A section on model simulation includes results of an investigation of parameters affected by weather and an assessment of the benefits of weather-responsive signal timing. The paper concludes with a discussion of future research needs to advance weather-responsive traffic signal control.

Source(s):

Institute of Transportation Engineers 2004 Spring Meeting, Mitretek Systems and FHWA

http://www.ops.fhwa.dot.gov/weather/resources/publications/fhwa/ite04sprwxrespsigcon.doc

Date: 2004

Author:

Goodwin, Pisano

Keywords:


Arterial management
Traffic signal
Traffic control
Traffic management
Traffic modeling
Volume

PDF files can be viewed with the Acrobat® Reader®.
Office of Operations