@article{ref1,
title="Evaluation of variable speed limits for real-time freeway safety improvement",
journal="Accident analysis and prevention",
year="2006",
author="Abdel-Aty, Mohamed Ahmed and Dilmore, Jeremy and Dhindsa, Albinder",
volume="38",
number="2",
pages="335-345",
abstract="Use of various variable speed limit (VSL) strategies as a tool for safety improvement on freeways was evaluated using simulation of a section of Interstate 4 in Orlando, FL. Real-time crash likelihood was calculated based on models developed in previous research by the first author [Abdel-Aty, M., Uddin, N., Pande, A., January 2005. Split models for predicting multi-vehicle crashes during high-speed and low-speed operating conditions on freeways. In: Presented at the 84th Annual Meeting of the Transportation Research Board, Washington, DC]. VSL implementation produced safety improvement by simultaneously implementing lower speed limits upstream and higher speed limits downstream of the location where crash likelihood is observed in real-time. This improvement was realized in the case of medium-to-high-speed regimes on the freeway, but no benefit was achieved in low-speed situations (no substantial safety benefit from implementing VSL in congested situation's simulation). The final recommendations for implementing VSL are: In addition to the safety benefit, this final strategy also produced travel time savings.",
language="en",
issn="0001-4575",
doi="10.1016/j.aap.2005.10.010",
url="http://dx.doi.org/10.1016/j.aap.2005.10.010"
}