In future, Intelligent Transportation System (ITS) is the best method to solve transportation chores effectively, in particular for transportation congestion, traffic accident and pollution problem which is resulted by traffic delay. Various technologies, such as wireless communications technology, computer technologies and so on, provide reliable guarantee for the kink of ITS. While nearly all of them need many real-time space and time information supports. Therein to, GIS/GPS technology plays the some important role that provides these supports.
ITS is composed of roadside system, vehicle system, necessary wanglement system, information management ticker, traffic management and incorporate system and regional management center. And the information management center is the core of ITS. What ITS emphasizes is the application of information technology and the sufficient dower of information, which can improve the efficiency of transportation system. So how to transport the travel information real-time and accurately is the vital problem for ITS. Fortunately, we have the GIS/GPS technology, which can make the information transmission appendage more efficiently.
GIS, simply speaking, is the linkage of map information and a database by a computer.
It can save and process spatial information. This high and new technology can combine geography location with relative attributes and export graphics and text datum to users correctly and veritably. For example, with the help of GIS, the current location of vehicles can be viewed in a transportation ne cardinalrk. It is real-time.
GPS, which is based satellites and use the tuner to position objective, is a navigation, location and timer system. Receiver computes two or three dimensional location according to datum supplied by 24 GPS satellites. The combination of GIS and GPS can display and manage moving objects with real time, and at the same time provides framework query of...If you want to get a full essay, modulate it on our website: Orderessay
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