| An implementation of cellular automaton model for single-line train working diagram |
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| 作者姓名： | 花伟 LiuJun |
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| 作者单位： | Key Laboratory of Intelligent Technologies and Systems of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, China;chool of Computing and Mathematics, Faculty of Engineering,University of Ulster at Jordanstown,Newtownabbey BT 37 0 QB,Northern Ireland, UK |
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| 摘 要： | According to the railway transportation system＇s characteristics, a new cellular automaton model for the single- line railway system is presented in this paper. Based on this model, several simulations were done to imitate the train operation under three working diagrams. From a different angle the results show how the organization of train operation impacts on the railway carrying capacity. By using the non-parallel train working diagram the influence of fast-train on slow-train is found to be the strongest. Many slow-trains have to wait in-between neighbouring stations to let the fast-train（s） pass through first. So the slow-train will advance like a wave propagating from the departure station to the arrival station. This also resembles the situation of a highway jammed traffic flow. Furthermore, the nonuniformity of travel times between the sections also greatly limits the railway carrying capacity. After converting the nonuniform sections into the sections with uniform travel times while the total travel time is kept unchanged, all three carrying capacities are improved greatly as shown by simulation. It also shows that the cellular automaton model is an effective and feasible way to investigate the railway transportation system.
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| 关 键 词： | 铁路运输 单线铁路 火车工作图表 非线性物理学 |
| 收稿时间： | 2005-08-28 |
| 修稿时间： | 1/8/2006 12:00:00 AM |
An implementation of cellular automaton model for single-line train working diagram |
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| Hua Wei and Liu Jun.An implementation of cellular automaton model for single-line train working diagram[J].Chinese Physics B,2006,15(4):687-691. |
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| Authors: | Hua Wei and Liu Jun |
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| Affiliation: | chool of Computing and Mathematics, Faculty of Engineering,University of Ulster at Jordanstown,Newtownabbey BT 37 0 QB,Northern Ireland, UK; Key Laboratory of Intelligent Technologies and Systems of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, China |
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| Abstract: | According to the railway transportation system's characteristics, a new
cellular automaton model for the single-line railway system is presented in
this paper. Based on this model, several simulations were done to imitate
the train operation under three working diagrams. From a different angle the
results show how the organization of train operation impacts on the railway
carrying capacity. By using the non-parallel train working diagram the
influence of fast-train on slow-train is found to be the strongest. Many
slow-trains have to wait in-between neighbouring stations to let the
fast-train(s) pass through first. So the slow-train will advance like a wave
propagating from the departure station to the arrival station. This also
resembles the situation of a highway jammed traffic flow. Furthermore, the
nonuniformity of travel times between the sections also greatly limits the
railway carrying capacity. After converting the nonuniform sections into the
sections with uniform travel times while the total travel time is kept
unchanged, all three carrying capacities are improved greatly as shown by
simulation. It also shows that the cellular automaton model is an effective
and feasible way to investigate the railway transportation system. |
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| Keywords: | train working diagram cellular automaton model carrying
capacity single-line railway |
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