ESTIMATING PASSENGER ORIGIN-DESTINATION MATRIX OF FIXED-FARE BUS ROUTES WITH SMART CARD USAGE INFORMATION

摘要

The automatic fare collection system for buses has been more and more popular in China andaround the world. The convenience of such system has attracted a lot of frequent users. Forexample, the percent of bus passengers holding smart cards is almost 65% in the city of Jinan,China by the end of 2009. The log of payment activities is a rich source for transit planners’decision support. However, the most important information, Origin-Destination (OD) matrixof passenger demands of each bus route, cannot be easily determined because only boardinginformation is recorded on buses with fixed fares. This paper mainly focuses on providing animproved approach for estimating the passenger demand OD matrix for each bus route. First,necessary data filtering technique is applied to process the smart card data. Then, OD matrixof passenger trip is obtained by considering the connectivity and walking distance ofindividual transfer. Finally, passenger OD matrix for each bus route is estimated individually.Experiments were carried out with smart card data collected in Jinan, China on July 7, 2009.Results showed that the proposed approach provided a success rate of 75% in average forroute OD matrix estimation, while reaching 85% in peak hours. The computed OD matrix isvaluable to support trip demand estimation, bus dispatching and route optimization forplanners and decision-makers.