Design And Realize Of Public Transportation Inquiry System Based On WebGIS

WebGIS is the product of Inernet technique which is applied in GIS development. GIS can be accepted vastly by Internet users and become a popular tools,which is benefited from Internet theory and technology continually develop. Applied WebGIS technical to urban traffic construction and management is an important way to promote traffic construction, agement modernization and informatization. Meanwhile, more potential user becomes beneficiaries; we only need to meet appropriate computer hardware requirements by using common browsers to browse, inquiry, information analysis. extra plug-in, ActiveX controls and Java Applet are often free of charge, which reduce the economic and technological burden of the end users and largely expanded the scope of GIS potential users.This paper take Huainan city's urban traffic for example, can be mainly divided into following several aspects:(1)Data collection and arrangement, which is mainly for the two-dimensional vector map, including bus stations, bus lines and ground feature vectorization related with urban transportation. Second is image data acquisition and processing work, containing the operation of splicing and orthorectification.(2)We use MS SQL Server2005 database stores bus information data and other public service information data. Design a reasonable bus information table structure can be more effectively realize an accurate and efficient analysis.(3)According to taking an ArcGIS Server as WebGIS platform, make use of asp.net technology and plug-in combining the C# and skyline,the program design realized five function module:GIS module, path navigation module, public transportation information query and analyze module, urban three-dimension module, public information service module.(4)By means of designing login module, we could control the access right of different user and enhance the efficiency and security of access system.Utilize of WebGIS technology develop urban traffic inquiry system, urban transportation information could be service the public. The function of query and analyze which is provided by system greatly facilitate people's travel and promote the rationalization of urban resources allocation to some extent.Furthermore,a combination of 3D WebGIS show may clearly and vividly learn about the geographical position of urban main destination building and the corresponding information. The characteristic of system is the effective combination of two-dimension and three-dimension. So the system fully fulfill the accurate and efficient transport comprehensive management, make people, vehicles and road work in close coordination, then achieve harmonious and unified of them. so this system can lead to further improvement for our city traffic environment.