The Research And Application Of Tile Map Technology In Intelligent Transportation System

Intelligent transportation system combines person, vehicle and road together to achieve the most efficient result. Shenzhen Urban Intelligent Transportation System releases the dynamic map of road traffic status on website, provides instant road traffic flow information to supervisor and traveler, helps people to choose reasonable route to avoid traffic jam and accident. This intelligent system greatly enhances the potential and capability of road system.When the system is further applied, the function problem emerges that Shenzhen Urban Intelligent Transportation System does not support massive simultaneous visiting request. Based on the research of tile map technology application, theoretical evidence and implementation method, this paper applies tile map technology to Shenzhen Urban Intelligent Transportation System to support the application requirement of massive simultaneous visiting request.First of all, this paper generally introduces the technical research background of tile map technology, proposes one implementation of tile map technology and then introduces two main technical components. The paper explains the theoretical model in the research on pre-production technology of tile-pyramid map warehouse on the server side. It uses linear quadtree data structure to achieve quick index ability of map tile within constant time complexity. The space position relation of map tiles is clarified basing on the research of map tile topological relation. On the basis of these three parts, this paper suggests an implementation of pre-production technology of tile-pyramid map warehouse on the server side. In the research on Ajax technology on the client side, the paper introduces basic concept, components and working function of Ajax technology, and explains the application scene of Ajax technology in tile map application system. Then, this paper presents the research results of the design and implementation of the two platforms of Shenzhen Transportation Simulation System, and clarifies the structure design and platform implementation of WebGIS system.On the basis of the research, this paper emphasizes the detail implementation method of tile map technology in Shenzhen Urban Intelligent Transportation System. An implementation model for tile map technology is proposed. While the operation of use case and object-oriented JavaScript are explained, the map operation and implementation method is specified basing on tile map technologyFurthermore, according to the application requirement of Shenzhen Urban Intelligent Transportation System, this paper improves the tile map technology, and proposes a new tile map technology base on the dynamic geographical data. The dynamic map of road traffic status can be released for the public users. Meanwhile, the paper uses multiple advanced software design ideas to minimize the operation on the server side and client side. As a result, Shenzhen Urban Intelligent Transportation System is able to support massive simultaneous visiting request.The above study has an important fact meaning and a reference value to the optimization of intelligent transportation system, the support of massive simultaneous visiting request and improvement of user experience. The model implementation of tile map technology based on the dynamic geographical data enriches the research results of tile map technology, and makes it possible to release tile map based on the dynamic geographical data on the premise that intelligent transportation system can support massive simultaneous visiting request. The design increases the application value of intelligent transportation system.