Relations model of urban development level and macroscopic road network operation
Based on the statistical analysis of Beijing urban development level, this article puts forward the principles for selecting the indicators of urban development level. It creates an integrated indicator system for urban development level consisting of 16 indicators in three aspects-social development, transportation supply and transportation demand. Also this article establishes indicators for macroscopic road network operation based on road network congestion index (CI) and arterial network's peak-hour travel speed. By gathering the actual statistics data of Beijing during the year 2003-2009, it identifies the input indicators for the relations model, establishes the relations model between urban development level and road network operation using the “Partial Least Square (PLS) method”. The relation model is validated by using the existing data. The result shows that the model's precision is within 10%, being able to satisfactorily meet the need of actual use. The research model in this article can provide important support for Beijing's future urban transportation development decision-making and transportation development strategy.