Title: Modelling of traffic capacity under traffic accident

Authors: Yu Ling; Zhang Pan; Yitong Zhang; Siyu Jia; Baoyun Sun; Mingxia Huang

Addresses: College of Traffic Engineering, Shenyang Jianzhu University, Shenyang, China ' College of Traffic Engineering, Shenyang Jianzhu University, Shenyang, China ' College of Traffic Engineering, Shenyang Jianzhu University, Shenyang, China ' College of Traffic Engineering, Shenyang Jianzhu University, Shenyang, China ' College of Traffic Engineering, Shenyang Jianzhu University, Shenyang, China ' College of Traffic Engineering, Shenyang Jianzhu University, Shenyang, China

Abstract: In this paper, the traffic characteristics of urban roads under traffic accidents are analysed from three aspects: the traffic volume characteristics, the definition of accident sections and the evolution characteristics of traffic capacity. On this basis, the theoretical analysis on road traffic capacity under traffic accidents is carried out and the capacity model is established. Guided by traffic volume theory and lane-changing rules, the correction coefficients of various influencing factors are simulated by adjusting the parameters on VISSIM, and the results are used to analyse the influencing factors of traffic capacity under traffic conditions. The curve fitting of the obtained data were conducted by MATLAB, a regression model of the reduction factor of traffic capacity of urban roads under traffic accident and each influencing factor and the actual traffic capacity model are built. Taking the traffic accident on the urban roads as an example, the quantitative analysis is made on the traffic capacity of urban road under the traffic accident to verify the proposed model and the results show its effectiveness.

Keywords: urban road; traffic accident; actual traffic capacity; PTV VISSIM.

DOI: 10.1504/IJSPM.2019.106188

International Journal of Simulation and Process Modelling, 2019 Vol.14 No.6, pp.500 - 512

Received: 09 Aug 2018
Accepted: 12 Aug 2019
Published online: 01 Apr 2020 *

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