Theoretical and Empirical Study on The Valuation of Travel Time Variability

在本研究中，我们通过将陈述偏好数据应用于整合模型来考察整合模型应用的可能性。该模型既具有数据收集方式的优势，又符合微观经济学的理论。因此，希望将其应用于行程时间可靠性的经济评价。但是，用于收集综合模型类型数据的所述偏好数据缺乏答案的可靠性。我们设法让受访者在选择路线时的出行时间分布尽可能清晰易懂。在实证应用中，我们通过对收集到的数据进行调查，得出了可靠的估计模型。计算的信度比在2.40左右，这意味着本研究的估计结果与以前的研究相距不远。我们还发现，受访者的入住率、面积等因素可能是偏好的因素。

In this research, we investigated the possibility of application of the integrated model by applying stated preference data to the integrated model. The integrated model has advantage of way of collecting data and also, fits the theory of micro economics. Therefore, it is desired to be used to economic appraisal of travel time reliability. But the stated preference data, used to collect the integrated model-type data, lacks reliability for the answers. We managed to present respondents the distribution of travel time when route-choice as possible as clear and easy to understand. In the empirical applications, we derived reliable estimated model by investigating the collected data. The computed reliability ratios are around 2.40 implying that the estimated results in the present study are not far from the previous studies. We also found that the effect of respondent's occupancy, area, and so on may be factor of preferences.