| Information sciences and technology, which are the representative of the high-tech development affected industries and economic development of one country. Traffic information is an important performance, and it injected new vitality into the rapid development of highway and urban road construction. As an important part of Intelligent Transportation Systems (ITS), information service system is necessary for transport construction .For travelers, it may help them make good use of the optimal mode and route, and for managers, they are able to take effective actions to traffic management, based on accurate,sufficient and timely information. Thereby the intelligent information service system reduced the travel cost, enhanced the use of transport facilities and improved the traffic running. All these made direct economic benefits and indirect social benefits.This paper focused on the transportation intelligent information service system of highway orient to support, and it is divided into six chapters by the total:Chapter 1: IntroductionFirst it introduced the research background, and analyzed the highway information construction at home and abroad; secondly it put forward the purpose and significance of this thesis; then the technical lines and main contents of the paper was introduced at last.Chapter 2: Analysis on the Transportation Information Service System of Highway Orient to SupportFirst this chapter analyzed the components of traffic flow guidance, and then studied the information needs of drivers and traffic managers. So it built the system framework of information service system, and completed its function design; then a detail analysis was done on the structure and function of its subsystems. These provided a guarantee for the effective conduct of transportation information system.Chapter 3: Design on the Transportation Information Service System of Highway Orient to SupportBased on the detail analysis of the transportation information service orient to support, this chapter did work on the system design, from the perspective of hardware, software and security design. And this can provide effective theory support to carry out the system.Chapter 4: Study on route choice decision-making model based on fuzzy comprehensive evaluationUsually, there are several lines between the origin to the destination, and their traffic flow state, road state , weather state and so on were different from each other. So how to choose an optimal route for travel was important for travelers. This chapter was mainly for one service body of traffic information service system-travelers, and it did specific research on the decision support model of route choice problem. First it used improved AHP method to determine the major factors that impacted the quality of travel routes and their respective weights, secondly, based on fuzzy comprehensive evaluation method, this chapter established a travel route choice decision-making model, and tested it effectiveness through examples.Chapter 5: Study on traffic flow guidance decision-making model of freeway incidentReasonable guidance decision-making plays an important part in traffic flow guidance under the freeway incident. This chapter brought forward the mathematical model of traffic flow guidance based on the guidance principle, and made different guidance decision in accordance with traffic demand and the different traffic incident .In the guidance decision development, this chapter took into account the coordination between guidance decision and freeway control programme, as well as the linkage programme of urban traffic and freeway traffic, in order to avoid congestion drift phenomenon. At the same time, the guidance decision evaluation method was also put forward. Finally guidance decisions were verified by simulation under the different traffic conditions.Chapter 6: Summary and the full text of OutlookThis chapter summarized the entire research process, and put forward the research work that need to be improved on.
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