公路交通量OD分布的推断方法研究

Research on Method of Inferring OD Distribution of Highway Traffic

本文在分析公路网交通特性的基础上,根据极大熵原理建立了公路交通量 OD 分布(起讫点分布)的推断模型,该模型可充分利用各种有效信息和局部资料对 OD 分布情况进行推断及追踪校正,因而可避免严重依赖 OD 调查数据的状况,使获取 OD 分布资料的方法得以简化。本文还对其实用的简化模型及特殊情况的处理作了分析,同时结合一个实例,检验了该模型的有效性。

Based on traffic properties analysis in highway network,this paper proposes an inferrence model of OD distribution of highway traffic according to entropy maximisation principle.Being able to infer thoroughly from the effective information and parts of data to update the OD matrix the model can simplify the method of acquisition of OD distribution without over- emphasizing the OD survey as before.Furthermore,the treatment of special cases and practical pattern simplified are discussed in an example and the va- lidity of the model is also checked in this paper.