The Study Oflafiffc Query System Based On GIS

In recent years, Because of the number of vehicles is increasing, Bus line adjustment frequently, Street maintenance frequently, City Road load increasing, the traffic congestion, blocking roads, travel inconvenience has become the negative factors which is not conducive to social development, city traffic is in urgent need to improve the hardware facilities at the same time, establish and improve the supporting software aided system, city traffic query system to solve the traffic problems. The system provides information through the Internet, telephone, also through the portable computer, palmtop computer check. Person, car, road organically, can effectively alleviate traffic congestion, improve efficiency, provide convenience for the trip.The paper detailed demand analysis, identified the main functions of the system include a map search, query, car navigation, the surrounding query, map basic operation module. Then, given the system outline design and detailed design, finally, based on B/S architecture, Lucene tools and.Net technology as one of the city traffic query system, this system adopts MVC design patterns, using Oracle database, and, according to the map search, query, driving directions and the surrounding query function module, choose an applicable and efficient algorithm of the shortest path.This paper completed the traffic query system which arrives to the standard of design objectives after being tested,The system can provide users with urban real-time traffic information and the convenience of information. For example, system provides morning and evening peak road, single-and double-limit line sections, sections of the closed, bus routes and other information, guides the user's driving or riding route, reducing the vehicle in the road time so as to realize the improvement of traffic and avoid the traffic congestion of the objective to improve road traffic system.