UAV can carry digital camera to fly above the city, providing basis for the planning information system of urban development. It is widely applied in research of building density distribution rule, survey of site under construction, survey of humble houses and leaky sheds in central city, situation of road occupied by construction, survey of open-parking ground, space distribution of dumping site, supplementary argument of sewage treatment and reconstruction projects, and providing image materials for factory planning or transformation. Besides the application in urban change, development trend and transformation and urban map update, UAV can also be used in the survey of current urban situation, such as survey of land use, land registration, transportation and tourism resource, drawing urban greening distribution diagram, smoke pollution distribution diagram and water pollution distribution diagram, as well as urban environment survey, such as the aspect of three wastes pollution, geological disaster, urban public security monitoring.

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