交通分布修正引力模型的应用

Application of Modified Gravity Model of Traffic Distribution

本文阐述了交通分布引力模型存在的预测精度不高及用统一的模型不能描述所有的交通区之间的分布量的不足，指出用交通分布修正引力模型预测交通公布量能够克服上述两方面的不足。交通分布修正引力模型不但具有较高的精度而且考虑了系数Ｋ的变化。文中以实例说明了修正引力模型的优点。

This paper expounds that the predicted precision existed in the gravity model of traffic distribution is not high and the inadequateness is impossible to deprive all the distribution capacity between traffic areas by using the unified model,and points out that the above defects can be overcome by using the modified gravity model of traffic distribution to predict the traffic distribution capacity. The modified gravity model of traffic distribution not only partakes of higher precision, but also takes the variation of coefficient K into account, furthermore, the advantages of modified gravity model are illustrated by examples.