Turner-Fairbank Highway Research Center

 
 
 
 
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Safety Assessment of the Interchange Spacing on Urban Freeways: Enhanced Models

Product Type

Other Publication

Author

Pilko, P., J.G. Bared, P.K. Edara, and T. Kim

Date

Jan-07

Abstract

The problem of interchange spacing is mostly studied from an operational perspective. The decision to build a new interchange within existing freeway spacing is determined by access needs and guidelines. The safety impact of inserting a new interchange is yet unknown although it is essential when conducting cost-benefit analysis or simply a safety assessment. In this paper, crash prediction models for interchange spacing are derived using data from California and Washington states. The models are then used to quantify the crash sensitivity to interchange spacing.

Link To Other Publication

Safety Assessment of the Interchange Spacing on Urban Freeways: Enhanced Models
(search on Paper #07-0313)


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