Traveller information system in GIS : a case study of Hyderabad city

This article describes the development and applications of an advanced traveller information system, based on geographical information system (GIS) technology, for the city of Hyderabad, India. GIS was used to plan the shortest routes for drivers and map the closest facilities and city bus routes. The source program is briefly described, with the steps involved in the model development: geo-referencing, digitising, data input, description of themes (road network, tourist locations, educational institutions, hospitals and offices, public transport stations, and waterways). Use of the model's map involves identifying the required area of the city and zooming in on it, when selected features and shortest routes can be requested, or details of bus, rail and air services available.