Sensor network configuring method for regional traffic state acquisition

The invention relates to a sensor network configuring method for regional traffic state acquisition. The method comprises the following steps of: optimizing the sensor network from the aspect of acquiring traffic information; putting forward an information density function on the basis of relativity with the sensor acquiring the traffic information; establishing information value maximum models of two stages by the information density function and through considering the comprehensive cost for configuring the sensors, wherein the model of the first stage is modeled on the basis of road sections, and the shortest road algorithm of model solution is put forward (see figure 1 for algorithm executing flowchart); the model of the second stage is modeled on the basis of road networks or regions, and the relativity between the road sections is considered (see figure 2 for algorithm executing flowchart).