Transportation infrastructure predominantly supports regional development. This study focuses on a plan to construct High Speed Surface Transportation (HSST), a new magnetic levitation type of transit system in Shiga prefecture. Comprehensive consideration, is needed to plan a new transit system in a local area, not only from the technical and financial aspects, but also from its social influence. In this study, the social psychology research method was applied by a questionnaire survey to explore the factors that lead people to choose and accept HSST in the future. The study tests the fit of the Theory of Planned Behavior (TPB) by the Structure Equation Model (SEM) with the information from the residents of Otsu City and Kusatsu City. Results show that the data fit the TPB model moderately well and explain the residents' intentions in accepting the transit. Perceived behavior control, as a construct of TPB, was found to be most closely related to the intentions. This study could be a meaningful experiment for adapting the social psychology theory to transportation planning. Finally, recommendations are proposed based on the results of the model to ensure future ridership. JEL Classification: R53, R41