Junghwa Kim

Strategies to Promote Sustainable Mobility Management Incorporating Heterogeneity

ABSTRACT The objectives of this article are to suggest strategies for Mobility Management (MM), which has attracted increased attention as sustainable transportation policy, through incorporating heterogeneity in trip maker. The heterogeneity was analyzed by latent class model using psychological variables, segmented by three latent classes: (1) “Environmentalists with non-actively travel”; (2) “Environmentalists with actively travel”; and (3) “Non-environmentalists.” In addition, it could be demonstrated the transitional process in travel behavior for reducing car use by structure equation model, consists of three steps (attitude change → behavioral intention → actual action), and each step is influenced by psychological variables related to environmental awareness, attitudes toward public transportation, and auto preferences. Finally, to promote the MM effectively for sustainable transportation, some strategies were suggested considering the characteristics of trip makers.

How to promote sustainable public bike system from a psychological perspective

ABSTRACT The public bike system (PBS) has been actively promoted worldwide for the last decade. This study tried to find out policy strategies for sustainable PBS implementation targeting on the city that is under consideration of introducing bike sharing scheme. For this, the authors considered some psychological factors that may make impacts on PBS users attitudes and hypothesized especially that individual environmental concern refers to an attitude toward environmental issues, influence an increase of their perceived value of PBS. The Norm Activation Model (NAM) is used to measure the publics environmental concern incorporating norm activation. In addition, willingness to pay (WTP) method is adopted to investigate the value of PBS individuals. Structural equation modeling (SEM) revealed that environmental concern influenced peoples perception of the value of PBS. Furthermore, the positive correlation between environmental concern and awareness of consequences on cycling is observed. The study verifies how people perceive the value of a bike sharing system and how often people using a bicycle are dependent on their environmental concern. In conclusion, authors discuss how PBS could be promoted sustainably by suggesting policy strategies to enhance the perceived value of PBS and to increase bicycle use.

Exploring the Relationship Between Undergraduate Education and Sustainable Transport Attitudes

ABSTRACT The objective of this study is to discuss the impact of education and environmental attitudes on the support for sustainable transport policies among civil engineering students. We surveyed a total of 524 students from Kyoto University, Japan, and asked them about the number of environment-related modules they have taken, their attitudes toward environmental issues, and their attitudes toward various transport policies. We first demonstrate that there is a positive relationship between course selection and environmental concern and discuss self-selection issues by comparing civil engineering students with students from other faculties. We then use a structural equation model (SEM) to show that education and environmental concerns also positively influence attitudes to transportation policies aimed at reducing car usage. We conclude that raising awareness of environmental problems and promoting responsibility through the university curriculum is important to educate future transport decision makers as well as to gain general support for sustainable transportation policies.

Evaluation Scheme for EcoMobility Policy Based on Multi-criteria Decision Making, AHP and ANP

In this study, policy evaluation scheme was established to encourage the efficient implementation of EcoMobility which has been expanding gradually all around the world. A total of eight evaluation goals and 22 evaluation items are reviewed and suggested based on the three major evaluation categories of “Basic elements for EcoMobility”, “Land use and transport system for EcoMobility”, and “Implications and impact of EcoMobility”. The results of this study are as follows: the result of AHP analysis which reflects only the hierarchical structure shows a high priority in “Elements for EcoMobility promotion”, “Eco-fiendly transport infrastructure”, and “Safety in transport”. While in result of ANP which considered the elements’ dependencies, “Eco-fiendly transport Services”, “Welfare in transport”, and “Environment by transport” have high weights and importances. In conclusion, this study would be useful to make reasonable judgment based on the analysis results of the two techniques in order to ensure reliability in evaluation of EcoMobility policy. Furthermore we have confirmed appropriate evaluation technique between AHP and ANP which is better to reflect the features of EcoMobility.