According to the latest statistics released by the Ministry of "national highway network planning," and from 2005 a 2030, the country will invest 2 trillion Yuan RMB, the new 51,000 km highway, which has made China highway mileage reached 85,000 km. Highway Traffic Monitoring System as part of intelligent transportation systems not only can improve traffic during the height of the average increase during the peak traffic volume, the degree of traffic congestion and reduce vehicle delay time; but also can greatly reduce traffic accidents and ensure traffic safety , fuel-efficient vehicles and reduce the wear and shorten transit time, reducing pollution, highway play fast, safe, comfortable and efficient role. A very significant economic benefits, social benefits and environmental benefits. Obtained the domestic and foreign engineers research generally attention.The article based on the actual participation in the project, in the study of the highway traffic monitoring system on the basis of traffic data, refer to a lot of literature, to learn the cause of their predecessors on the freeway traffic data description, analysis, deal with the successful experience. Profound understanding and deduced freeway traffic flow after the basic parameters of the relationship, proceed Highway Traffic Monitoring System design data warehouse and multi-dimensional data sets of traffic information ROLAP model. From time dimension, place dimension, in the natural environment dimension, up-down transportation condition dimension From different angles, different aspects of data analysis for traffic information. Using SQL Server 2005 Analysis Services analytical tools, multi-dimensional data sets of traffic information to ROLAP slices, cuts, the drilling operation, and it affected traffic speed and traffic control program constraints. Using SQL Server 2005 Analysis Services data mining tools in the Highway Traffic Monitoring System data warehouse creation data mining structure and data mining model to the actual system in the history of data collection targeting, using Microsoft Decision Trees algorithm,the impact on traffic speed and traffic control program constraints analysis shows that affect traffic speed and traffic control program constraints and extent of the effect.Finally, according to analyzes, processing draws the conclusion, under the union different natural environment the vehicles regulating standard and the standard, has produced the transportation control strategy panorama drawing. The such highway traffic control personnel utilizes the transportation control strategy panorama drawing, gathers the real-time transportation information to the transportation information gathering equipment to carry on the analysis, obtains the highway vehicles moving velocity and the driving control plan, will control the plan to issue will analyze the road section on the information board to achieve the induction, management and control of highway road vehicles purposes. |