一条主干道，一条乡间公路。组成十字路口，要求优先保证主干道通行。有MR（主红）、MY（主黄）、MG（主绿）、CR(乡红)、CY（乡黄）、CG（乡绿）六盏交通灯需要控制；交通灯由绿→红有4秒黄灯亮的间隔时间，由红→绿没有间隔时间；系统有MRCY、MRCG、MYCR、MGCR四个状态；

乡间公路右侧各埋有一个传感器，当有车辆通过乡间公路时，发出请求信号S=1，其余时间S=0；

-A main road, down a country road. Composed of a crossroads, requiring priority to ensuring the main road traffic. With MR (the main red), MY (Master Wong), MG (Master Green), CR (township red), CY (Rural yellow), CG (village green) six traffic lights need to control　traffic lights from green → red, 4 second yellow light interval, not by the red → green interval　system MRCY, MRCG, MYCR, MGCR four state　country road on the right of each buried a sensor, when the country road by a vehicle when the request signal S = 1, rest of the time S = 0