Gravity model in the Korean highway
Gravity model in the Korean highway
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DOI：
10.1209/0295-5075/81/48005
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发表时间：
2008-01-01
期刊：
影响因子：
1.8
通讯作者：
Stanley, H. Eugene
中科院分区：
文献类型：
--
作者：
Jung, Woo-Sung;Wang, Fengzhong;Stanley, H. Eugene
我们调查的交通流量的韩国高速公路系统，其中包含公共和私人交通信息。我们发现，城市i和j之间的交通流T-ij形成了一个引力模型，牛顿引力定律中描述的物理引力的隐喻，PiPj/r（ij）（2），其中Pi表示城市i的人口，r（ij）表示城市i和j之间的距离。与公路网相比，航空和公共地面交通系统是一个非齐次系统，具有幂律行为。版权所有（C）EPLA，2008.
We investigate the traffic flows of the Korean highway system, which contains both public and private transportation information. We find that the traffic flow T-ij between city i and j forms a gravity model, the metaphor of physical gravity as described in Newton's law of gravity, PiPj/r(ij)(2), where Pi represents the population of city i and r(ij) the distance between cities i and j. It is also shown that the highway network has a heavy tail even though the road network is a rather uniform and homogeneous one. Compared to the highway network, air and public ground transportation establish inhomogeneous systems and have power law behaviors. Copyright (C) EPLA, 2008.