Uploaded on 2020-06-27

I found this picture on Internet. It is not taken by me. As HK is one of highest population density cities in the world, HK government tried different ways to solve the problem. And central can be considered as the most important part of HK economic. With tons of offices, there are a huge amount of human flow. Therefore, there are a long footbridge which connect central and central-mid-level which aim to relieve road traffic in mid-levels. However, the traffic problem still exist now. Sensors can be used to detect and collect data about the dynamic flow of cars or human. With more understanding of the dynamic flow of cars or human or even the lifestyle of the people, a better urban planning in this area can be done in order to solve the transportation problems.