Abstract
Voters will have concerns on political and social issues. Thus, they will also have interest in transportation planning and their response rate of travel survey will be higher. This study compares voting rate and participation rate of travel survey and investigate whether the voting rate data is applicable to travel analysis. We compare the response rate of 2012 Kumamoto Person Trip survey and several voting rate of several elections and have several findings: Both voting rate and response rate of elderly are similarly high. Correlation between response rate and voting rate is positive and introducing voting rate into participation choice model of travel survey improve the model fitness.