局域路网IO矩阵反推技术及应用

IO Matrix Estimation Technology of Local Road Network and Its Application

为了克服传统OD矩阵在分析局域路网交通状况时的局限性,该文引入了一种适用于描述局域路网交通出行分布的IO矩阵,提出了基于非线性规划法的IO矩阵反推模型,采用改进的SQP算法求解模型,并对模型解和提高模型推算精度的途径进行了讨论。采用实际路网对模型进行了测试,并将其与蒙特卡罗仿真法结果进行对比,显示了模型的优越性;最后给出了应用实例。

In order to overcome the limitation of the traditional OD matrix when analyzing the traffic conditions of local road network, this paper introduces an IO matrix suitable for describing the distribution of traffic flow in local network, puts forward an IO matrix estimation model based on non-linear planning, and uses the improved SQP arithmetic to solve the model, and discusses the model result and the approach to enhance the calculating accuracy of the model. The model is tested by the practical road network, and the result is compared with the result of Monte Carlo Simulation Method to display the superiority of this model is displayed accordingly. At last, an application is presented.