| 使用浮动车检测OD矩阵的算法及可靠性分析 |
| |
| 引用本文： | 董敬欣,吴建平.使用浮动车检测OD矩阵的算法及可靠性分析[J].北京交通大学学报(自然科学版),2005,29(3):73-76. |
| |
| 作者姓名： | 董敬欣 吴建平 |
| |
| 作者单位： | 北京交通大学,交通运输学院,北京,100044;英国南安普顿大学运输研究所,南安普顿,SO17 |
| |
| 基金项目： | 北京智能交通系统(ITS)规划与示范研究项目 |
| |
| 摘 要： | 回顾了国内外估算实时OD矩阵现状,提出了用浮动车检测实时OD矩阵的方法.采用最小二乘法给出了现有估算模型的证明过程,指出其存在的问题是估算模型假设浮动车与全部运营车辆比例为恒定的.为此,作者给出了浮动车与运营车辆比例随OD对变化的估算模型,并建立了求解该问题的算法,同时建立了求解估算OD矩阵可靠性的方法,最后,介绍了算法在北京的应用实例.
|
| 关 键 词： | 交通工程 OD矩阵估算 浮动车 |
| 文章编号： | 1673-0291(2005)03-0073-04 |
| 修稿时间： | 2004年10月17日 |
An Algorithm to Estimate OD Matrix with Probe Vehicle and Its Reliability Analysis |
| |
| DONG Jing-xin,WU Jian-ping.An Algorithm to Estimate OD Matrix with Probe Vehicle and Its Reliability Analysis[J].JOURNAL OF BEIJING JIAOTONG UNIVERSITY,2005,29(3):73-76. |
| |
| Authors: | DONG Jing-xin WU Jian-ping |
| |
| Abstract: | The paper reviews the current research situation of OD estimation, and puts forward the method using floating vehicle to estimate a time_dependent OD matrix. The least square method is used to prove the existing OD_independent model; however, shortcomings of the model also are pointed out. An improved model dealing with OD_independent model is put forward. Based on the work, the paper develops a more accurate OD_dependent model, and then explains how to solve the model and measure its reliability. Finally, application of the algorithm in Beijing is explained. |
| |
| Keywords: | traffic engineering OD matrix estimation probe vehicle |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
