Integrating Safety in Developing a Variable Speed Limit System

Abdel-Aty, Mohamed; Yu, Rongjie; University of Central Florida. Center for Advanced Transportation Systems Simulation

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Integrating Safety in Developing a Variable Speed Limit System

2014-01-01
By Abdel-Aty, Mohamed ; Yu, Rongjie

[PDF-2.90 MB]

English

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Details:

Creators:

Abdel-Aty, Mohamed ; Yu, Rongjie

Abdel-Aty, Mohamed ; Yu, Rongjie Less -
Corporate Creators:

University of Central Florida. Center for Advanced Transportation Systems Simulation
Corporate Contributors:

National Center for Transportation Systems Productivity and Management (U.S.)
Subject/TRT Terms:

[+]

Advanced Traffic Management Systems Crash Exposure Highway Traffic Control Real Time Information Risk Assessment Traffic Congestion Traffic Safety Variable Speed Limits Weather Conditions
Resource Type:

Tech Report
Geographical Coverage:

Colorado
Corporate Publisher:

National Center for Transportation Systems Productivity and Management (U.S.) ; University Transportation Centers Program (U.S.)

National Center for Transportation Systems Productivity and Management (U.S.) ; University Transportation Centers Program (U.S.) Less -
NTL Classification:

NTL-HIGHWAY/ROAD TRANSPORTATION-HIGHWAY/ROAD TRANSPORTATION;NTL-OPERATIONS AND TRAFFIC CONTROLS-OPERATIONS AND TRAFFIC CONTROLS;NTL-SAFETY AND SECURITY-SAFETY AND SECURITY;
Abstract:

Disaggregate safety studies benefit from the reliable surveillance systems which provide detailed real-time traffic and weather data. This information could help in capturing microlevel influences of the hazardous factors which might lead to a crash. The disaggregate traffic safety models, also called real-time crash risk evaluation models, can be used in monitoring crash hazardousness with the real-time field data fed in. One potential use of real-time crash risk evaluation models is to develop Variable Speed Limits (VSL) as a part of a freeway management system. Models have been developed to predict crash occurrence to proactively improve traffic safety and prevent crash occurrence. In this study, disaggregate real-time crash risk evaluation models have been developed for the total crashes and the feasibility of utilizing a VSL system to improve traffic safety on freeways has been investigated. This research was conducted based on data obtained from a 15-mile mountainous freeway section on I-70 in Colorado. The data contain historical crash data, roadway geometric characteristics, real-time weather data, and real-time traffic data. Real-time weather data were recorded by 6 weather stations installed along the freeway section, while the real-time traffic data were obtained from the Remote Traffic Microwave Sensor (RTMS) radars and Automatic Vehicle Identification (AVI) systems. Different datasets have been formulated from various data sources, and prepared for the multi-level traffic safety studies.
Format:

PDF
Funding:

DTRT12GUTC12
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:1251e01053641d1f62d2bba7de8e99212e4b75aa66583af4fc60de60987dadd5
Download URL:

https://rosap.ntl.bts.gov/view/dot/35705/dot_35705_DS1.pdf
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Integrating Safety in Developing a Variable Speed Limit System

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