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Urban transport problems have become severe social problems with the motorization and urbanization. In order to solve these problems, and achieve better effect of real-time traffic control, aiming at the signalized intersections of urban road network, some researches are made on the prediction of traffic flow in this paper. On the basis of it, a prediction model is constructed by using a superiority...
The green ratio model of Webster ignores the difference of traffic flow in different traffic state. The paper introduces an idea of traffic priority. It deals out more green time for the phase which has the highest traffic demand in oversaturated traffic, so as to prevent and clear off the crowded traffic flow as soon as possible. Each phase gets the priority by turns, so the improved green ratio...
In this paper, based on the analyzing the signal control problem of single intersections, a kind of real-time optimization method with PSO (particle swarm optimization) solving signal timings for single intersection is put forward. On detecting the flow of current cycle and the cycle before, estimating the flow of next circle is proceeded. Setting least delay as performance index, we get each phase...
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