Modeling the accessibility of public transport to people with disabilities in the GTFS standard

In this paper, the possibility of using the GTFS standard to describe the public transport (PT) stop infrastructure in Poland, was evaluated. It was also proposed to expand the existing GTFS file of the ZTM (PT authority) in Poznań to include a detailed description of a selected two-level tram stop. A testbed equipped with open source software was built and used for this purpose. The study showed that despite the fact that in Poland, PT organizers and operators do not provide detailed information on its accessibility to people with disabilities, the preparation of such information is possible, while modifications to the data generated so far may be required, especially regarding the stops. However, the preparation and updating of this data on a nationwide scale may pose a problem.