Why are there so many overpasses in Chongqing?

Terrain restriction, convenient travel, etc.

1, terrain restriction. Chongqing has complex terrain, many mountains and hills, and limited space for road construction, so it is difficult to meet the urban traffic demand. Overpass can cross terrain obstacles, connect tall buildings, solve traffic bottlenecks and improve urban traffic.

2. The road load exceeds the limit. Because of the high land price and high road construction cost in the central city of Chongqing, it is difficult to widen the road excessively. However, the increasing traffic flow has caused many roads to be overloaded and the traffic congestion is serious. Overpass can increase the road traffic volume in a limited space, relieve the ground road pressure and optimize urban traffic.

3. High cost performance. There are many high-rise buildings in the central city of Chongqing. To connect high-rise buildings, the cost of building overpasses is relatively low. If it is demolished and rebuilt, it will not only cost too much, but also cause great damage, affecting urban functions and residents' lives. Therefore, the construction of overpass is a more economical and effective choice.

4. It is convenient for residents to travel. Many residential areas in Chongqing are on the hillside, and there may be several tall buildings in one residential area. Overpass can directly connect high-rise buildings, and residents can quickly pass between different high-rise buildings through overpass, which is convenient to travel without detours.