Abstract
An effective way to optimize traffic structures is by changing travel costs, thereby moving travelers from private transportation to public transportation. However, according to the existing studies, the traveler will not transfer from one mode to another unless the change in travel utility is greater than the indifference threshold. Therefore, the “indifference threshold” is one of the most important factors influencing a traveler’s choice of behavior. This study defines the “indifference threshold” as the traveler’s sensitivity to changes in travel utilities. In the framework of the theory of planned behavior (TPB), a structural equation model (SEM) considering the indifference threshold is established to analyze a traveler’s mode choice behavior. The analysis results showed that a travelers’ sensitivity to changes in travel utilities has the greatest impact on mode-choice behavior intentions and mode choice behavior. Perceptual behavior control has the strongest influence on travel choice behavior. In addition, in order to further explore the heterogeneity of a traveler’s behavior, the travelers were subdivided into four types, by establishing a latent class model (LCM) considering the indifference threshold. Finally, different traffic management suggestions are proposed for different types of travelers.
Highlights
Reducing the travel cost of public transportation or increasing the travel cost of private transportation are effective ways to optimize traffic structures, to promote sustainable transportation development, and to help travelers transfer from private transportation to public transportation [1]
(3) The influence of attitude on mode choice intention is secondary to subjective norms
In order to further explore the heterogeneity of a traveler’s mode choice behavior, travelers were subdivided into different types by establishing an latent class model (LCM) considering the indifference threshold
Summary
Reducing the travel cost of public transportation (such as building a bus lane) or increasing the travel cost of private transportation (such as increasing the parking fees in central areas of the city) are effective ways to optimize traffic structures, to promote sustainable transportation development, and to help travelers transfer from private transportation to public transportation [1]. Ghorbanzadeh et al [25] applied an interval analytic hierarchy process (IAHP) dealing with the inconsistencies and uncertainties of users responses, by comparing the results of passengers to reference stakeholder groups These studies on the impact of psychological factors on travel behaviors have rarely considered the impact of travelers’ sensitivities to changes in travel utility. Based on the data of the travel behavior survey, the structural equation model (SEM) considering the indifference threshold was established, and the influence factors of travelers’ choices between private transportation and public transportation were analyzed. In order to further explore the heterogeneity of travelers’ mode choice behaviors, travelers were subdivided into different types by establishing a latent class model considering the indifference threshold.
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