01088844

Component

https://doi.org/10.3141/2060-06

http://scholar.google.com....+Lu&publication_year=2008

Intersection safety is one of the most important issues in transportation. Traffic crash analysis—the most popular method to evaluate or assess the safety performance of an intersection—has been used for a long time. However, it is based on a lot of crash data, which need to be accumulated over a long period. In addition, traffic crashes sometimes occur randomly as a result of human driving behavior. Therefore, without sufficient data and crash history, traffic crash analysis may not give an overall evaluation of an intersection’s safety performance. This paper introduces an approach to evaluating highway intersection safety performance. It is fully based on the existing conditions of the intersection, including geometrics, sight distance, pavement surface conditions, traffic control devices, traffic signal timing, and phasing. The non-accident-based approach is based on field surveys under the conditions mentioned previously. The approach will also result in a safety index to indicate the safety performance of the intersection. Corresponding countermeasures are ranked and recommended based on cost–benefit analysis. This paper is based on research results from part of a project (entitled Safety Design of Highway Intersections) sponsored by the China Department of Transportation. In this paper, the approach (called a diagnostic approach) is practically applied to evaluate the safety performance of some intersections in Shan Dong Province. Results from the real application indicate that the approach has good applicability and can be used by field safety engineers in real applications.

01114752

English

pp 46-52

2008

Transportation Research Record: Journal of the Transportation Research Board

9780309113304

Print

Figures (4) ; References (16) ; Tables (5)

Benefit cost analysis; Countermeasures; Field studies; Geometric design; Highway design; Highway safety; Intersections; Sight distance; Surface course (Pavements); Traffic control devices; Traffic crashes; Traffic safety; Traffic signal phases; Traffic signal timing

Pavement conditions

Shandong Province (China)

Design; Highways; Planning and Forecasting; Safety and Human Factors; I21: Planning of Transport Infrastructure; I82: Accidents and Transport Infrastructure

TRIS, TRB

Jan 29 2008 4:22PM

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