Best Practices for Road Weather Management Version 2.0
Title:
Roadway Flash Flooding Warning Devices: Feasibility Study
Abstract:
The purpose of this project was to investigate the potential use of active systems that would automatically warn motorists of hazardous conditions through the use of dynamic message signs and that could actually close roads with physical barriers similar to rail crossing gates. The project addressed several questions including investigating existing flood sensing technology; describing the continuum of water-over-the-road scenarios; investigating methods for detecting water over-the-road; determining costs of sensing options; defining monitoring system configurations; investigating traffic control options by determining control options currently being used; assessing the effectiveness of these methods, and defining potential new traffic control options; investigating legal risks involved in flood sensing and road closure; understanding the liabilities with detecting and warning; describing follow-on work needed to develop flood warning systems to the point of field tests; finding potential partners for testing; investigating the integration of weather information to improve reliability of flood warning by incorporating weather prediction; and preparing reports and outreach materials as required. The project team developed a proposed system design that will provide the durability, data accessibility, alerting, warning and traffic control functions required and at a reasonable cost.
Source(s):
Weather Solutions Group, Prepared for for ITS-IDEA Project 79
http://onlinepubs.trb.org/onlinepubs/sp/its-idea_79.pdf
Date: 2001
Author:
Boselly
Keywords:
Flooding
Flood warning system
Access control
Costs
Traffic control
Institutional issues
Traveler information
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