Exploring Urban Railway Station Influence Area based on Rail-to-Bus Transfer Data from Automatic Fare Collection System

초록

To enhance transit ridership, the transfer discount fare scheme using automated fare collection (AFC) systems was introduced for transit riders in Seoul 2004. The transit smart card data of transfer trips between urban railways to buses enables exploration of the size of the urban railway station influence area passengers reach by transit ride. In this study, we provide the geographical distribution of transfer rider’s destination for rail-to-bus transfer trips using transit smart card data. A case study in Mokdong station, Seoul, demonstrates the benefits of the data mining to evaluate distribution of transfer rider’s destination. The results show that the transfer riders travel on average 1.7km with 5 bus stops after boarding. About 90% of riders travel within 3.6km with 10 bus stops which infers the size of the urban railway station’s influence area. Consequently, we revealed that the reliable transfer travel data constitute valuable information for a decision of urban railway influence area by individual station level and the information will help transit agencies for transit oriented development.