Theoretical validation of Surrogate Safety Assessment Methodology for roundabouts and cross intersections.

Author(s)
Gettman, D. & Pu, L.
Year
Abstract

The safety of intersections and ITS features is measured primarily by the frequency and severity of crashes that occur in and near the facility. This method of performance measurement can only occur after the treatment or design is deployed. However, New and novel intersection designs and ITS systems cannot be measured for their safety before they are deployed since no crash history record exists. This FHWA effort developed surrogate measures of safety based on analysis of traffic conflicts. By using these surrogate measures of safety, ITS systems and intersection designs can be tested in simulation models and assessed for safety impacts. This paper presents a summary of the results of validation studies and presents specific results for a comparison case with AIMSUN for roundabouts and cross intersections to compare the performance of the measures in comparative "before and after" type studies. For the covering abstract see ITRD E134653.

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Publication

Library number
C 41249 (In: C 40997 CD-ROM) /82 / ITRD E135516
Source

In: Proceedings of the 13th World Congress and Exhibition on Intelligent Transport Systems (ITS) and Services, London, United Kingdom, 8-12 October 2006, 23 p.

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This publication is one of our other publications, and part of our extensive collection of road safety literature, that also includes the SWOV publications.