关键词: 城市交通, 交通方式选择, 效用函数, 参数标定, 系数校核

Abstract: This paper focuses on module structure of traffic mode choice in terms of model framework, basic form of utility function, and parameter calibration and validation, based on resident trip survey in Guangzhou. The basic principle of mode split is proposed, and hierarchical division through non-car family, car family, and motorcycle family. This basic hierarchy partition is illustrated using an example of car family. Next, the method and basic steps of parameter calibration and key points of parameter validation are presented. In the final section, the forecasting results and field data are compared for validation purposes. The use of these household attributes increases the accuracy of the model, while the introduction of income, car ownership, and travel volume characteristics improve the adaptability of the model. The results will provide guidance for structure of traffic mode choice in similar-type cities.

Key words: urban traffic, traffic modal choice, utility function, parameter calibration, parameter validation