In addition, they are also allowed to adjust urban planning when the orientation of planning of a national urban system, regional development planning, urban planning at a higher level and administrative boundary affect the nature, function and size of the urban or planned region.
Individuals and organisations are permitted to adjust urban planning if construction of the national key projects greatly affect land use, environment and the layout of urban architecture.
Urban planning can be adjusted when there are changes in climate conditions, geology and hydrology.
VNS