Two Stop-Line Method for Modern T-Shape Roundabout: Evaluation of Capacity and Optimal Signal Cycle

Figure 6

Model sensitivity analysis under different signal cycles and radius. (a) Capacity of straight-go flow. (b) Capacity of left-turning flow/lanes. (c) Second stop-line to straight-go flow. (d) Overall capacity of one approach direction.

(a)

(b)

(c)

(d)