一种基于GIS的居民出行空间及交通网络评估方法

Method to estimate dweller's trip space and transportation network based on GIS

传统的交通需求4阶段分析模型大多基于各类出行的起讫点调查(OD调查),建立出行生成、出行分布、出行方式选择和流量分配的4阶段预测模式。由于缺乏关于出行者对道路及其周边相关评价等心理感知方面的考虑,从本质上,这是一种物质性的交通分析模型。基于人本主义思想,借助GIS工具,探讨了人本主义的交通调查和评估方法;最后选择小样本量的出行调查数据为实验,实现了居民微观行为空间、行为过程以及对沿路交通状况及土地利用特征的宏观综合模拟。

The traditional travel demand model usually bases itself on the OD study survey and employs a 4-step modeling process including trip generation, trip distribution, mode choice and assignment. Nevertheless, this model in essence is a physical one due to its non-consideration of travellers＇ cognitive factors such as their evaluation of road condition. Availing of GIS, traffic investigation and appraisal from a humanistic view are discussed and an experiment is given based on small-sample trip data which integrates dwellers＇ behaviour space, behaviour process, and their appraisement of road traffic and land usage characteristics.