Method for evaluating city road net traffic state based on floating vehicle data
A floating car data and traffic state technology, applied in data processing applications, road network navigators, traffic flow detection, etc., can solve the problem of not considering road geometry and traffic attributes, unable to assist decision-making in traffic control and management, and not suitable for public release and other problems, to achieve the effect that the operating conditions are easy to meet, the technology is simple and easy to implement, and it is easy to popularize and apply
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[0051] This method is a method for dynamically estimating the road network traffic state based on the current situation combined with historical data. The accumulation of historical data takes a long time, and with the accumulation of historical data, the estimation results are more accurate. Another important premise of this method is the collection, sorting and maintenance of road network static data. The finer the granularity of the collected data, the better the estimation results.
[0052] Such as figure 1 As shown, the system consists of static data management and maintenance module, dynamic data acquisition module, dynamic data to logical road network mapping module, road network traffic state estimation module, historical data update module, traffic information release module, and data storage module. These software modules are independent and can be installed on one machine or multiple machines according to the actual situation. The physical deployment is as follows: ...
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