A More Practical Traffic Lights Cellular Automata Model for Traffic Flow Simulation

Based on real collected data to analyze the effects to vehicle speed near the line of parking area under different remaining of green time with or without signal countdown device on urban roads. Then we can analysis of drivers’ characteristics and its spatio-temporal characteristics. Conclusion is drawn as follows: The influence of signal lights on vehicle speed, which mainly concentrate in the 70 m area near the stop line; During the green light period, at the same time point, the operational characteristics of vehicles on different positions have significant difference, which changes with the passing of green time; Compared with no signal countdown case, the vehicle speed fluctuation is larger and the average speed is obviously lower in signal countdown case; Under the traffic without blocking, most drivers want to increase speed through the stop-line. Eventually, by performing the analysis of pilot behaviors in with or without signal countdown device, an attempt is made to provide the urban road entrance lanes of more realistic CA model, which describes the operational characteristics of urban road entrance lanes with the signal controlling has obvious advantages through simulation results.

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