This is a solution for 2-way roads, which have 2 or 3 line (for 2 or 3 cars) in each direction. Normally such roads lead from the outer areas to the center of the city. Thus always in the morning on the way to the center a HUGE traffic, but on the way back there are barely couple of cars. In the evening is vice versa.

Well, solution can be to create flexible roads. In this case the barrier between the two ways can be flexible and changeable in case of traffic jam.

For example, let’s say there is a two ways road with 3 lines in each direction. In the morning when the traffic jam is in the direction to the center, the barrier can be shifted and include two of the lines of the road way in the opposite direction. The change can happen during the traffic lights and can be done very flexible for each road. Thus the traffic can be reduced in half and the consumption of gas and the consequent air pollution too.