摘要
提出基于高速公路收费站进出口数据推算OD矩阵的一般方法。在缺乏初始OD矩阵的条件下,结合指数平滑法和无约束重力模型思想,通过VB编程反复迭代进行初始OD矩阵推算;利用组合模型预测高速公路各收费站出入口流量,通过弗雷特法进行OD分布推算。以沪宁高速公路为例证实此方法具有较高的精度。
In this paper, common methods are proposed for calculation of OD matrix based on expressway toll gate entry and exit data. Under the condition that an initial OD matrix is absent, it is calculated through VB programming iteration with reference to index smoothing method and unrestricted gravity model thoughts. The vehicle flow through various Expressway entries and exits is predicted by use of model combination. OD distribution is calculated through Fret method. The actual example of Huning Expressway is taken to prove that this method is higher in accuracy.
出处
《公路交通技术》
2007年第6期107-109,共3页
Technology of Highway and Transport
关键词
弗雷特法
指数平滑法
组合预测模型
高速公路
Fret method
index smoothing method
forecast model combination
expressway
