Driver Source-Based Traffic Control Approach for Mitigating Congestion in Freeway Bottlenecks

Figure 5

(a)-(d) Geographical distribution of controlled on-ramps during different time windows for Beijing-Hong Kong-Macao Expressway. Colour and size of each circle indicate the traffic control time of each on-ramp. (e)-(f) Time-varying traffic control time of a controlled on-ramp of (e) Beijing-Hong Kong-Macao Expressway and a controlled on-ramp of (f) Changsha-Zhangjiajie Expressway.

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