Open AccessImpact of Road Bends on Traffic Flow in a Single-Lane Traffic System
Author(s) -
Junwei Zeng,
Yongsheng Qian,
Dejie Xu,
ZHI-LONG JIA,
Zhidan Huang
Publication year - 2014
Publication title -
mathematical problems in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.262
H-Index - 62
eISSN - 1026-7077
pISSN - 1024-123X
DOI - 10.1155/2014/218465
Subject(s) - radius , traffic flow (computer networking) , flow (mathematics) , bend radius , arc (geometry) , mechanics , diagram , engineering , structural engineering , traffic system , arc length , research object , transport engineering , physics , computer science , mechanical engineering , bending , geography , computer security , database , regional science
Taking the characteristics of road bends as a research object, this work proposes the cellular model (CA) with road bends based on the NaSch model, with which the traffic flow is examined under different conditions, such as bend radius, bend arc length, and road friction coefficiency. The simulation results show that, with the increase of the bend radius, the peak flow will be continuously increased, and the fundamental diagram will become more similar to that of the classic NaSch model; the smaller the bend radius is, the easier it is for the occurrence of blockage; for different bend lengths, all the corresponding traffic flows show that the phenomenon of go-and-stop and the bends exert slight inhibitory effect on traffic flow; under the same bend radius, the inhibition effect of the bends on the traffic flow will be weakened with the increase of the friction coefficiency
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