Analysis of the influence of occupation rate of public transit vehicles on mixing traffic flow in a two-lane system |
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| Authors: | Qian Yong-Sheng Shi Pei-Ji Zeng Qiong Ma Chang-Xi Lin Fang Sun Peng and Yin Xiao-Ting |
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| Affiliation: | School of Traffic and Transportation, Lanzhou Jiaotong University, Lanzhou 730070, China; School of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China |
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| 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. |
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| Keywords: | public transit vehicles cellular automata capacity average velocity |
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