In order to analyze the impact of transit transfer preferential (TTP) policy on residents' transfer behavior, a questionnaire of combining Revealed Preference (RP) and Stated Preference (SP) was designed to collect data on respondents' socio-economic attributes, travel characteristics, psychological perceptions, and preferences in different transfer scenarios. Using an integrated choice and latent variable (ICLV) model, a transfer behavior model was established to explore the decision-making mechanism of residents under the TTP policy. The analysis results show that the fitting effect of the ICLV model is better that that of the SEM-Logit model. In the ICLV model, individuals' socio-economic attributes and travel characteristics can directly influence transfer behavior and indirectly influence it through psychological latent variables. The perceived ease of use and travel habits among the psychological latent variables have positive and negative impacts on residents' transfer behavior, respectively. Attitude acts as a moderating variable, where a better attitude towards the TTP policy enhances the positive impact of preferential magnitude on transfer behavior. When perceived transfer convenience and public transportation travel habits under the TTP policy increase 1%, the probability of choosing to transfer increase by 4.67% and decrease by 4.62%, respectively. By introducing variables such as individuals' socio-economic attributes and travel characteristics to estimate latent variables, the method overcomes the measurement error problem inherent in using questionnaire items to estimate latent variables thereby improving the explanatory power of the model estimation. The conclusions can provide theoretical support and reference value for government departments in planning, formulating, and implementing the TTP policy.
为了改进上述研究的不足,一些学者提出了考虑心理潜变量的综合选择(Integrated choice and latent variable,ICLV)模型。该模型不仅明确描述了认知和态度如何影响选择,而且还利用观察到的个人信息对潜在态度变量进行估计,使模型更贴合实际。在DCM部分,替代方案的效用可能取决于选项、决策者观察到的解释变量和潜在的解释变量;同时,这些潜变量有助于解释对观察指标的反应,也可能是解释变量的函数[16,17]。ICLV模型自提出以来,已经成为选择行为研究领域中非常重要的分析方法。付学梅等[18]采用ICLV模型研究了绍兴市居民通勤方式选择行为机理,研究发现:通勤者对各种出行方式的潜在喜好或厌恶显著影响通勤方式的选择。Lizana等[19]采用ICLV模型研究了智利大学校园内自行车出行选择行为机理,研究发现:态度是解释行为的关键构念,自行车基础设施、社会经济特征、对自行车的熟悉程度和实际问题都可以通过态度间接影响出行行为。原雅丽等[20]采用ICLV模型研究了突发事件下京津冀城市群内旅客城际出行方式选择机理,研究发现:与多项Logit模型相比,ICLV模型的拟合优度和预测精度更高,可解释性更强。Kim等[21]采用ICLV模型研究了美国伊利诺伊大学厄巴纳-香槟分校教职工通勤模式选择机理,研究发现:教职工的社会经济属性不仅可以直接影响通勤模式选择,也可以通过态度间接影响通勤模式选择。
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