基于二级优化的OD需求反推模式的应用研究

A Study for the Application of Multi-class OD Matrix Adjustment Based on the Two-steps Optimal Method

准确的OD需求数据能提高交通规划的精度,因此,交通规划中重要的一环就是得到准确的OD需求数据。将二级优化的OD需求反推方法应用到真实的规划数据上,分析结果数据,验证二级优化方法的有效性。结果表明,使用二级优化方法反推OD需求时,反推的结果与实际流量的拟合度很高,误差也很小,能够满足交通规划对需求数据的要求。

The accuracy of transport planning depends on the preciseness of the OD demand data. Apply two-steps optimal method to real data, analyse the result and verify the validity of the two-steps optimal method. The result said the regression value between the computed volumes and the observed flows was very well, and the differences were quite small. It is proved that the result of the adjustment can meet the request of transport planning.