1. Urban sprawl

These make the urban develop spontaneously without planning, which in turn leads to a number of cities lacking or very poor in technical and social infrastructure, environmental pollution, and landscape degradation. Any stage of planning work (new planning, urban planning and renovation as well as planning adjustment) lacks uniformity, poor quality of planning projects, urban design The town has not been interested or left open, urban management regulations are lax and there is a lack of consistency among levels ... Even planning projects depend on investors! Thus, the main cause of this situation is due to the lack of uniformity in the legal system related to construction investment in urban development (many fields are left blank but many fields are overlapping investment. ).