The first reason is that it has a lot of spaces for increasing population. The city covers an area of about 11,678 square kilometers which is the twelfth largest in Thailand. (th.wigipedia.org). Chiangrai is nearly eight times larger than Bangkok which has an area of 1,568 square kilometers. Nobody can deny that people will have more spaces for living on this amount of land. As a result, it can help solving a problem of overcrowding. Moreover, we can make a new city planning to help reduce traffic congestion.