A Traffic Light Control System , Based On Basys2 Board Using Verilog. Designed For Digital Logic Course Project.
The crossroad traffic lights controls the traffic of horizontal road(h-road) and vertical road(v-road).
It will run in 6 different modes according to the traffic of each road:
-
Initial state. Default state, the red / yellow / green lights will signal alternately with 16 sec for red / 3 sec for yellow and 16 sec for green.
-
Busy in both h-road and v-road. In this state, the system will test another signal called
peakwhich means it is the rush hour of the day, making the time of red light 8 sec for horizental road. -
Busy in h-road, idle in v-road. In this state, the green light will signal forever for horizental road, the period will be 15 sec. When the count-down finishes, the system will test another signal called
pedestrainwhich means there are pedestrains waiting at vertical road to cross, the green light at v-road will signal for one period until thepedestrainsignal vanishes. -
Idle in h-road, busy in v-road. In this state, the system behaves like Busy in h-road, idle in v-road but switches the behaviors for h-road and v-road.
-
Idle in both h-road and v-road. In this state, the system behaves like Busy in h-road, idle in v-road but make the signal period of green light at h-road to 16 sec.
-
Manual control. In this state, all outside signals will be omitted and the auto-system will be down. All traffic light signals will be set directly from control center.
MIT.