stuck

[Phish7608]

hey all:
well im stuck on my schl project i have to design a circuit for a traffic light system I have to create a 2 way traffic light system like at a cross road. This system would stop automatically after 45 seconds, but if one car had not passed for 10 seconds then the traffic lights would change to the other direction. I would use pressure pads on each side of the lights
please help!!!

 

[Russlk]

Looks like a 555 timer application. Post your solution and ask for comment.