Study On Theory And Pratice Of Anti-Four Step Traffic Regional Control Planning

Traffic planning is one of the main contents in traffic engineering, and is an important part of urban planning and regional planning. Traffic demand forecast is crucial technical content in traffic planning. The theory of traffic planning has been in use since 1980s, of which classic Four-Step Planning is mostly used in traffic demand forecast. However, the conclusion could be drawn that Four-Step Planning is limited in our country nowadays, by analyzing different urban traffic planning. The thesis suggests the Anti-Four-Step regional control planning theory of urban traffic, aiming at avoidance of serious traffic problems resulted from unpredictable urban traffic demand.The thesis analyzes urbanization discipline in the world, comparing it to the situation in our country, and draws the conclusion that our country is on the preliminary stage of urbanization, the same as the stage of that in 1920s-1930s of developed countries. The limitations are rapid urbanization resulting in unpredictable land use as well as incorrect traffic demand forecast and Four-Step application limitation in middle and small cities. With the unique urbanization characters in our country, the Four-Step planning method is not so applicable. Therefore, the Anti-Four -Step regional control planning is suggested. Then specific procedures are elaborated. The concept of road network is given and application of VISUM and OD technology is introduced. In the end, examples are used to confirm the feasibility and effectiveness of Anti-Four-Step regional control planning in real application according to land use control indexes of trip generation and achievement in each traffic region.