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

Figure 9

Spatial distribution of the controlled on-ramps. (a) The proposed method controls the traffic flow from major driver sources of the freeway bottleneck. (b) A comparative method controls the traffic flow from the upstream on-ramps near the freeway bottleneck. Colour and size of each circle indicate the traffic flow contribution of an on-ramp to the freeway bottleneck.

(a)

(b)