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

Figure 7

E-S flow under [60 s∼160 s] signal cycle with 5% proportion of heavy vehicles. (a) 60s signal cycle with 10 m radius. (b) 80 s signal cycle with 20 m radius. (c) 100 s signal cycle with 30 m radius (d) 120 s signal cycle with 40 m radius. (e) 140 s signal cycle with 50 m radius. (f) 160 s signal cycle with 60 m radius.

(a)

(b)

(c)

(d)

(e)

(f)