Abstract: A delay of a scheduled transport which runs along a route according to a timetable is determined The route comprises at least one leg. Determining the delay is based on a detailed reference schedule indicating arbitrary time-stamped reference positions of a transport that is on time. A request is received for the transport's delay by a user device located on the transport. The request indicates at least the current position of the transport. The transport's delay is calculated on the basis of the current position indicated in the request, a time-stamp and the corresponding time-stamped reference position of the detailed reference schedule. The calculated delay is returned to the user device. The calculated delay is stored into a logbook. In response to a request not indicating the current position of the transport, the delay is returned on the basis of the logbook.

Abstract: A delay of a scheduled transport which runs along a route according to a timetable is determined The route comprises at least one leg. Determining the delay is based on a detailed reference schedule indicating arbitrary time-stamped reference positions of a transport that is on time. A request is received for the transport's delay by a user device located on the transport. The request indicates at least the current position of the transport. The transport's delay is calculated on the basis of the current position indicated in the request, a time-stamp and the corresponding time-stamped reference position of the detailed reference schedule. The calculated delay is returned to the user device. The calculated delay is stored into a logbook. In response to a request not indicating the current position of the transport, the delay is returned on the basis of the logbook.