Developing traffic flow indices for the detection of high accident potential highways in North Carolina. Part 1: final report.

Author(s)
Heimbach, C.L. Cribbens, P.D. Horn, J.W. Vick, H.D. Atkins, J.R. Beeson, F.V. & Brothers, B.T.
Year
Abstract

An alternative to accident rates as a method of measuring and evaluating the accident potential of a road is investigated. The measure used is the mean number of speed changes per minute, which is a function of acceleration noise. Six functionally different road sections varying from a two-lane rural secondary road to a four-lane divided controlled-access urban motorway were investigated. It is concluded that (1) the highway facility is of practical significance in the measurement of the mean number of absolute 4 mph speed changes; (2) each highway facility investigated represents a unique speed change distribution; (3) there exists a visual range order correlation, for five of the six highway investigated, between accident rates and mean number of absolute 4 mph speed changes.

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Publication

Library number
A 1617 /82 / IRRD 210048
Source

Raleigh, NC, US North Carolina State University, School Of Engineering, 1968, VIII + 104 p., 16 ref.; Highway Research Program, Project ERD-110-67-6

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