2019 Volume 13 Pages 1-19
Travel survey in Bangkok Metropolitan Region (BMR) has been constantly conducted since 1990 on an interview basis. Recent technology enabled a GPS-based travel survey to be conducted via a smartphone application. With this method, travel information can be obtained more precisely compared to interview-based survey as travel location can be instantly obtained from GPS tracker and other travel information can be recorded immediately after the completion of the travel. This study is the first large-scale pilot survey on the GPS based travel survey in BMR, covering 308 samples in 10-days consecutive study period. Based on the unique survey data from mobile application survey, travel characteristics in BMR such as modal shift and time/day travel fluctuation can be presented. Problems found during the survey period and directions for future implementation are also discussed.