基于D-optimal试验设计的公共交通出行logit模型

以成都到龙泉片区的交通通道为研究对象，假设通道开通地铁的情况下，采用D-optimal试验设计意愿调查问卷，选择费用、时间等变量以及个人属性作为效用变量，建立公共交通出行的多项logit模型，结合意愿调查数据对模型进行求解，分析通道中公共交通出行选择行为，并预测成都到龙泉片区主要交通方式的客流分担率。分析表明，地铁将承担通道中大部分的客流。

Application of D-Optimal Design Method for Logit Model Construction of Public Transport Travel Behavior

A traffic corridor between Chengdu and Longquan district is selected to analyze the public transport travel behavior.Assuming that the subway is opened in the traffic corridor,the D-optimal design is adopted in the stated preference questionnaires.Then,such utility variables as time,cost,sex,age and income are selected to construct the multinomial Logit （MNL）model and the stated preference data are used to calibrate the Logit model to analyze peoples′public transport behavior.Finally,the sharing rate of main traffic modes is forecast.As a result,the analysis shows that the subway will undertake the main part of passenger flow in the traffic corridor.