OD反推在公路工程可行性研究中应用的关键技术研究  

Research on Key Technical Issues of OD Matrix Estimation Applied to Highway Engineering Feasibility Study

作　　者：林国鑫 

机构地区：[1]北京中咨正达交通工程科技有限公司,北京市100029

出　　处：《公路》2009年第10期153-158,共6页Highway

摘　　要：在分析OD反推技术在公路工程可行性研究中应用的必要性、可行性之后,指出了OD反推技术应用中的三个关键技术问题,即观测路段的选取、种子OD的确定和分配方法的选择。然后结合TransCAD交通软件,在实际工程案例中对这些关键技术问题进行探讨,并提出了基于GIS的路段重要度的分析法来解决观测路段选取的问题。研究表明路段重要度的分析法快速有效地选取观测路段,OD反推技术的应用能大大减轻工可的调查工作量并提高预测精度,在工程实践中具有重要的价值。After analysis of the necessity and feasibility of OD matrix estimation applied to highway engineering feasibility study, three key technical issues are pointed out which are determination of the seed OD matrix, selection of the traffic observation location and choice of the assignment method. These issues are discussed in a engineering cases by using the transportation planning software TransCAD, and the importance analysis method based on GIS is proposed to address selection issue of the traffic observation location. Research results show that the method is effective for the selection, that OD matrix estimation applied to highway engineering feasibility study may be able to greatly reduce the workload of the traffic investigation and improve forecast accuracy, which is great valuable for highway engineering feasibility study.

关 键 词：OD反推 种子OD 观测路段 分配方法 TRANSCAD 

分 类 号：U491.1[交通运输工程—交通运输规划与管理]