In San Antonio, Texas, a freeway management system reduced fuel consumption by an estimated 2,600 gallons per major incident.
Review of video surveillance data collected throughout 1995 indicated an average reduction in response time of 20 percent. This result compared responses to incidents recorded in the months prior to implementation to those recorded once the TransGuide system became operational. This reduction in response time was input into the CORFLO freeway simulation model. The results showed an average delay savings of 700 vehicle-hours, and a fuel consumption decrease of 2600 gallons per major incident. Using the accident frequency for freeways, these figures translated into an annual savings of $1.65 million.
Before-and-After Analysis of the San Antonio TransGuide System
Author: Henk, Russel H., et al.
Published By: Paper presented at the 76th Annual Transportation Research Board Meeting. Washington, District of Columbia
Source Date: 12-16 January 1997
Average User Rating
Intelligent Transportation Systems > Traffic Incident Management > Information Dissemination > Dynamic Message Signs
Intelligent Transportation Systems > Traffic Incident Management > Surveillance & Detection > Imaging/Video
Intelligent Transportation Systems > Traffic Incident Management > Mobilization & Response
Typical Deployment Locations
DMS, CMS, VMS, Changeable Message Signs, Variable Message Signs, CCTV, closed circuit television cameras, road monitoring, camera imaging