1 Improvement in Transit Service using GIS – Case study of Bhavnagar State Transport Depot • Mukti Advani Research Scholar, TRIPP/IIT Delhi B.Srirama Research Scientist, TRIPP/IIT Delhi S.K.Pathan Head, LPPD, SAC-ISRO, Ahmedabad Abstract: Geographical Information System (GIS) is a tool which has been employed for integration of spatial and non-spatial data. GIS is a specific integrated system of hardware, software and procedure designed to support capture, management, manipulation, analysis and display of spatially referenced data for solving complex planning and management problems. GIS can be applied to any service that is dependent on network like water supply, power supply, sewage, etc. So it could be of great help for Transportation Engineering and planning also. When so many parameters are to be connected with Transportation network like travel time, speed, road resistance, turning movements, etc. For such a big network GIS proves itself as an efficient tool for solving such a network problems quickly and with a great precision. A case study of Bhavnagar district area was conducted for determining the optimal routes from one origin to many destinations kind of problem, with an objective of minimizing travel distance and travel time of users. Constrains taken into consideration were impedance for intersections, type of road and speed. GIS emerged as better tool for getting solution of such complex problems very accurately and rapidly. Introduction A country’s transportation system represents development stage of country. But at the same time highly developed countries are facing higher problems of transportation management and spending lots money and effort for solving those problems. Growing traffic congestion, the need to preserve the environment, and the problems of road safety are the main reasons for many cities worldwide to consider new initiatives in public transit systems. The complexities of building and operating the transport system efficiency and safely have out stripped the ability of past experience and professional judgment alone to provide solutions. If a country is to satisfy the transport infrastructure requirement in consonance to its developmental pace, decisions must be based on a more reliable, updated, relevant, easily accessible and affordable information. Better information does not guarantee better decision making capability but its absence surely precludes it. The application of GIS to a diverse range of problems in Transportation engineering is now well established. It is a powerful tool for the analysis of both spatial and non-spatial data and for solving important problems of networking. • Proceedings ESRI National Conference 2005 held at NOIDA, India.