中国物理B ›› 2009, Vol. 18 ›› Issue (9): 4037-4041.doi: 10.1088/1674-1056/18/9/070

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Analysis of the influence of occupation rate of public transit vehicles on mixing traffic flow in a two-lane system

石培基1, 曾琼2, 马昌喜2, 林芳2, 孙鹏2, 尹小亭2, 钱勇生3   

  1. (1)School of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China; (2)School of Traffic and Transportation, Lanzhou Jiaotong University, Lanzhou 730070, China; (3)School of Traffic and Transportation, Lanzhou Jiaotong University, Lanzhou 730070, China;School of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China
  • 收稿日期:2008-12-27 修回日期:2009-01-23 出版日期:2009-09-20 发布日期:2009-09-20
  • 基金资助:
    Project supported by the Science and Technology Supporting Program of Gansu Province, China (Grant No 0804GKCA038).

Analysis of the influence of occupation rate of public transit vehicles on mixing traffic flow in a two-lane system

Qian Yong-Sheng(钱勇生)a)b)†, Shi Pei-Ji(石培基)b), Zeng Qiong(曾琼)a), Ma Chang-Xi(马昌喜)a), Lin Fang(林芳)a), Sun Peng(孙鹏)a), and Yin Xiao-Ting(尹小亭)a)   

  1. a School of Traffic and Transportation, Lanzhou Jiaotong University, Lanzhou 730070, China; b School of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China
  • Received:2008-12-27 Revised:2009-01-23 Online:2009-09-20 Published:2009-09-20
  • Supported by:
    Project supported by the Science and Technology Supporting Program of Gansu Province, China (Grant No 0804GKCA038).

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摘要： Based on the existing classical cellular automaton model of traffic flow, a cellular automaton traffic model with different-maximum-speed vehicles mixed on a single lane is proposed, in which public transit and harbour-shaped bus stops are taken into consideration. Parameters such as length of cellular automaton, operation speed and random slow mechanism are re-demarcated. A harbour-shaped bus stop is set up and the vehicle changing lane regulation is changed. Through computer simulation, the influence of occupation rate of public transit vehicles on mixed traffic flow and traffic capacity is analysed. The results show that a public transport system can ease urban traffic congestion but creates new jams at the same time, and that the influence of occupation rate of public transit vehicles on traffic capacity is considerable. To develop urban traffic, attention should be paid to the occupation rate of public transit vehicles and traffic development in a haphazard way should be strictly avoided.

Abstract: Based on the existing classical cellular automaton model of traffic flow, a cellular automaton traffic model with different-maximum-speed vehicles mixed on a single lane is proposed, in which public transit and harbour-shaped bus stops are taken into consideration. Parameters such as length of cellular automaton, operation speed and random slow mechanism are re-demarcated. A harbour-shaped bus stop is set up and the vehicle changing lane regulation is changed. Through computer simulation, the influence of occupation rate of public transit vehicles on mixed traffic flow and traffic capacity is analysed. The results show that a public transport system can ease urban traffic congestion but creates new jams at the same time, and that the influence of occupation rate of public transit vehicles on traffic capacity is considerable. To develop urban traffic, attention should be paid to the occupation rate of public transit vehicles and traffic development in a haphazard way should be strictly avoided.

Key words: public transit vehicles, cellular automata, capacity, average velocity

中图分类号:  (Land transportation)

  • 89.40.Bb
05.40.-a (Fluctuation phenomena, random processes, noise, and Brownian motion) 45.70.Vn (Granular models of complex systems; traffic flow)