单进口轮流放行方式的四路环形交叉口交通信号控制
徐洪峰
, 耿现彩, 何龙
Signal timing plan for fully signalized four-leg roundabouts with single-approach-entering operation
XU Hong-feng
, GENG Xian-cai, HE Long
图7 道路空间条件
Fig.7 Road geometric condition