Pages are a way to hedge or barrier block. If the car in front stops pending before the next bus stop, next, respectively. When I turn it on and let the car barrier stops waiting follow.
Duties barrier or barricade the block. If a car ahead stopped waiting for it to stop before the car next to the order. When switched on, the barrier, the car stopped moving forward as well.
Duty block or the block wall If the car in front stopped waiting before it stopped the car and later, respectively. When you open the wall and car stop waiting moves in each other .