Influence of geometric design variables on accident rates on two-lane rural highways.

Author(s)
Kalakota, K.R. Senevirathe, P.N. & Islam, M.N.
Year
Abstract

Two-lane rural highways in the USA have the highest accident rate (vehicle-mile exposure accident rates), four to seven times higher than those on rural interstate highways. Some studies have revealed that the geometric inconsistency is the main cause of this large percentage of accidents on two-lane rural highways. Current geometric design practice is fixed and depends on the functional class (freeway, arterial, and local) and selection of speed. The main objectives of this paper are: 1) To look at the geometric variables used in the accident prediction models so far and evaluate their significance to the present day conditions. 2) To see if there are other variables relevant to the present day conditions and predict an appropriate model. 3) To evaluate the transferability of these models to the given conditions. 4) To suggest safe values for the variables keeping in mind the practical speeds and conditions of two-lane rural roads.

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Publication

Library number
C 6419 (In: C 6392 b S) /82 / IRRD 866346
Source

In: Proceedings of the conference Road safety in Europe, Berlin, Germany, September 30 - October 2, 1992, VTI rapport 380A, Part 2, p. 207-226, 14 ref.

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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.