Citation

Borovik VS, Borovik VV, Skorobogatchenko D. Transp. Res. Proc. 2018; 36: 68-76.

Copyright

(Copyright © 2018, Elsevier Publications)

DOI

10.1016/j.trpro.2018.12.045

PMID

unavailable

Abstract

A conceptual model of strategy for reducing accident rate on urban roads has been developed. It is based on modified method of accident rate coefficients. A multiplicative function is used to estimate the effect of partial accident rate coefficients on the resulting coefficient. The strategy suggests actions aimed at achieving the main purpose, which is the reduction of traffic accident rate under conditions of limited resources as the process of transition in the phase space from the initial point along the trajectory li. The number of trajectories can be infinite. Visualization of the accident rate reduction strategy is carried out on the 3D-surface where the isoquants are represented by the curves connecting the points with the same values of the resulting accident rate coefficient. Then an optimal control strategy is represented by a straight line perpendicular to the underlying isoquant (at a point on the tangent line to the isoquant). The mutual position of the isoquant indirectly reflects the quantitative characteristics of the amount of work related to the reduction of accident rate. Visualization allows to see and select the direction and content of the planning process that contribute to reduction of accident rate in real conditions. The model proposed by the authors underwent verification with regard to management of activities aimed at traffic safety improvement in Volgograd. A sample included data on 50 indicative black spots for three years, with daily discretization.

Language: en

Keywords

accident rate; accident rate factor method; multiplicative function; strategy; urban roads