Accession Number : AD0727095

Title :   A Car-Following Model Relating Reaction Time and Temporal Headways to Accident Frequency.

Descriptive Note : Technical rept.,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Brill,Edward A.

Report Date : APR 1971

Pagination or Media Count : 17

Abstract : The paper deals with a car-following model relating driver reaction time, temporal headway and deceleration response to accident frequency. The central goal is to assess the sensitivity of 'collision' probability to a shift in expected reaction time. This problem eventually reduces to determining the sensitivity of the probability of 'ruin' to changes in the drift of the process of cumulative reaction times. 'Diffusion-type' approximations are used and it is found that additive changes in mean reaction time correspond to multiplicative changes in 'collision' probability. Numerical examples are given to illustrate this effect. (Author)

Descriptors :   (*TRAFFIC, MATHEMATICAL MODELS), (*MOTOR VEHICLE ACCIDENTS, REACTION(PSYCHOLOGY)), REFLEXES, PROBABILITY, DECISION MAKING, NUMERICAL ANALYSIS

Subject Categories : Safety Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE