Road Weather Management Program
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Best Practices for Road Weather Management Version 2.0

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Title:

Advanced Road Safety and Weather Warning System

Abstract:

Roadway, traffic volume and crash data were analyzed to identify sites that are good candidates for improvement for weather-related crashes. These sites with promise were then shared with meteorology researchers on the team who used them to explore and identify significant weather-related signatures within meteorological data. These analyses we undertaken to determine the feasibility of an Advanced Road Safety and Weather Warning System, which would provide forecasts of significant weather events that could be broadcast to the public via communications outlets such as highway advisory radio, websites, changeable message signs and direct media broacasts. While the specific findings of this particular study are applicable to PennDOT District 2-0, the methodology is applicable to any other PennDOT district with comparable data and extendable to any type of crash under investigation and even to other facility types. This approach can be particularly helpful when analyzing crash types that are relatively infrequent; the use of random effects might provide a means for accounting for random variability.

Source(s):

Pennsylvania Transportation Institute, prepared for the Pennsylvania DOT. For an electronic copy of this resource, please direct your request to WeatherFeedback@dot.gov.

Date: 2006

Author:

Aguero-Valverde, Jovanis, Knight

Keywords:


Safety
Crashes
Traveler information
Traffic modeling

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