Investigating An Application System Of Geography Information System In Traffic Management

In order to solve the traffic problem of the city of our country , improve the performance of the urban traffic system, need to bring the modern new and high technology into the traffic administration, improving the existing road network through adopting scientific management, thus improve the efficiency of management of the whole road traffic , realize the science and validity of city traffic administration. The geographical information system deals with and analyses the technological system of the space datum as a kind of synthesis, can gather the space data of the earth effectively , store, search, the modeling , analysis and exporting. Lie in conbining geographical position and relevant attribute information together organically in its unique place . At present, GIS has already all trades and professions been used in resource , environment , electricity , traffic , communication , surveying and drawing , agriculture , construction , Aero-Space and military, have very important function to the national economic development and modernization of national defense, in represent GIS develop new internetgis domestic already ripe progressively software of direction at home; More and more software products adopt package GIS , space and attribute data and integrate storing , front technology that the multi-user work in coordination ,etc., technological innovation and market open-up have realized good interdynamic. The maturing just based on the characteristic of GIS software and its technology, make us consider that use GIS technology to structure the administrative system platform of the intellectual traffic. As everyone knows, traffic information is closely related to geographical position, utilize GIS technology to construct the sharing information platform of the administrative system of the intellectual traffic, not only can make traffic information show ocularly understanding on the space , and can offer the support on space attribute for the fact that the profound level of the information is excavated with follow-up information service and aid decision . Information is an important basic element in an administrative system of the intellectual traffic, and a tie of linking each subsystem too. Usually divide traffic information into two kinds: Static traffic information and dynamic traffic information. Static traffic information mean including information , parking area information , vehicle , information of road and affiliated facility of traffic manage information ,etc. change over time lighter message, it can be divided into a basic data (such as road network data of the road ) and historical data (for instance, the vehicle breaks rules and regulations historical data ,etc.); The multidate information points all kinds of traffic information gathered in real time mainly, for instance information of flow of traffic , video control information , bus position information etc.. Utilize GIS to integrate managing to all the above data. To characteristic that information require , set up exclusive geographical message database to intellectual traffic administrative system, set up GIS platform with the distributed database system interconnectedly through the network. GIS as the coordination of the whole system person, and use and manage the data. This text commands the geographical project of information system as the example with the traffic of Changchun, having set up a GIS system, the groundwork is as follows. 1. To the concept of the geographical information system, the content , the range of application, study current application situations both at home and abroad, the development trend has carried on deep research. 2. To the relevant knowledge of package type GIS related to the fact that this system is used, the characteristic of package type GIS, forming the unit, the structure of the platform, use and appraise deep study and discussion . 3. Command the geographical project demand of information system to analyse to the traffic of Changchun, have listed the overall demand for the project, have explained the systematic function: Including map data base administration, manage and inquire visually the statistics are released , the thematic picture is made, the data are upgraded and expanded. 4. Having finished the overall design of the project, the overall goal of this project is to set up data management system and business and manage the auxiliary information system, fully utilize such technology as geographical information technology , database , network communication ,etc., set up a science , high-efficient geographical information system of road traffic; The systematic construction priciple is to design and build the characteristic that make every effort to reflect such respects as practicability , perspective , economy , security ,etc., satisfied and networked, integrate, standardization and standardization. In the structural design of the system , divide the system into the data to gather module , basic data management and maintain the platform and information issue platform, function that elaboration every module shouldbe realized. Meanwhile, the design and interface which finish the systematic safety management are designed. 5. It explains the detailed design process of this kind of procedure to take map editor's module as an example, the applied environment of the map editor's module , design overallly , design in detail . Include the systematic interface to design, the structural design of the module , the structural design of the data. To the detailed design of every function module , have listed the function of the module to describe, function declares , the procedure is logic. Work this text do command geographical the first stage of the project of information system for Changchun traffic, just set up a information platform for traffic administration, in order to give play to the best utility of this system, need to do much work, command the information and integration and merger of different resource information such as map data and traffic. Only the data bring in constant renewal in and everyday control is conbined together, this system will just be given the really lasting vitality, play a unique role while the traffic commands. It is in final goals of system and information not other application system (such as and system , dispatcher of public transport, system as citizens' activities transport services,wait as flow of goods system) between realize there aren't height of information, and then in order to heighten the level of city traffic administration, the quality of improving citizen's traffic and going out, promote the development of social economy, bringing good social benefit and economic benefits.