Advanced traveler information system with communication constraints

The Advanced Traveler Information Systems (ATIS), which provide real-time information about public transit to the commuters have gained tremendous popularity in last few years. The accuracy of such a system depends on the location information of the bus at the base station. Consequently bus uses a fixed transmission policy of communicating periodically to base station. This periodic communication is generally expensive, and it is in fact one of the main factors that prevents aggressive deployment of such systems. In this paper we first propose new architecture and develop new framework to study the ATIS in a communication constrained environment and then propose three different techniques for implementation of the system that tries to minimize loss in accuracy in this constrained environment. Simulation examples are provided in the end to support the proposed theory.