We may have to turn back to resolve burning issues such as traffic, reduce the use of cars, because the problem causing the probability reduce pollution in urban areas is more than valid. The only protection.
We may have to turn to solve problems such as the end result. Various traffic problems Reduce car traffic Because the root causes will help reduce pollution in urban areas are more accurate. The only defense
We may have to turn to solve the traffic problems. At the end, such as the reduction of ใช้รถยนต์. Because the solution that would be help to reduce pollution in the urban areas correctly. Protection only.