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)
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
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.
Received: 27 December 2008
Revised: 23 January 2009
Accepted manuscript online:
(Granular models of complex systems; traffic flow)
Fund: Project supported by
the Science and Technology Supporting Program
of Gansu Province, China (Grant No 0804GKCA038).
Cite this article:
Qian Yong-Sheng(钱勇生), Shi Pei-Ji(石培基), Zeng Qiong(曾琼), Ma Chang-Xi(马昌喜), Lin Fang(林芳), Sun Peng(孙鹏), and Yin Xiao-Ting(尹小亭) Analysis of the influence of occupation rate of public transit vehicles on mixing traffic flow in a two-lane system 2009 Chin. Phys. B 18 4037
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