| Title |
Accuracy Improvement of the Transport Index in AFC Data of the Seoul Metropolitan Subway Network |
| DOI |
https://doi.org/10.12652/Ksce.2021.41.3.0247 |
| Keywords |
AFC; 지하철네트워크; 환승; 통행지표; 지하철운송기관 AFC; Subway network; Transfer; Transport index; Subway organization |
| Abstract |
Individual passenger transfer information is not included in Seoul metropolitan subway Automatic Fare Collection (AFC) data. Currently, basic data such as travel time and distance are allocated based on the TagIn terminal ID data records of AFC data. As such, knowledge of the actual path taken by passengers is constrained by the fact that transfers are not applied, resulting in overestimation of the transport index. This research proposes a method by which a transit path that connects the TagIn and TagOut terminal IDs in AFC data is determined and applied to the transit index. The method embodies the concept that a passenger’s line of travel also accounts for transfers, and can be applied to the transit index. The path selection model for the passenger calculates the line of transit based on
travel time minimization, with in-vehicle time, transfer walking time, and vehicle intervals all incorporated into the travel time. Since the proposed method can take into account estimated passenger movement trajectories, transport-related data of each subway organization included in the trajectories can be accurately explained. The research results in a calculation of 1.47 times the values recorded, and this can be evaluated directly in its ability to better represent the transportation policy index. |