基于小样本浮动车系统的平均行程时间估计  

Average Link Travel Time Estimation Based on Floating Car of Small Sample Size

作　　者：方路平[1] 陈仕骁[2] 赵飞帆[2] 

机构地区：[1]浙江工业大学信息工程学院,浙江杭州310023 [2]浙江工业大学计算机科学与技术学院,浙江杭州310023

出　　处：《计算机仿真》2012年第9期367-370,共4页Computer Simulation

摘　　要：针对浮动车技术的特性以及低浮动车采样率条件下信号交叉口给行程时间估计造成的影响,提出了一种新的浮动车路段行程时间估计方法。利用感应线圈的流量数据计算出周期内的动态排队长度,根据信号周期内的最长排队长度确定受交叉口影响区域,剔除该区域内的浮动车数据,计算浮动车在区域外的正常行程时间以及区域内的延误时间,最终求得浮动车的路段平均行程时间。仿真结果表明了本算法的可用性,为浮动车行程时间设计提供了参考。The features of the floating car technology and the effect on the floating cars caused by the signalized intersections under the condition of low sampling rate were analyzed. A new method for estimating the average link travel time of floating cars was proposed. Using traffic volume data from loop detectors, the dynamic queue length of signalized intersection can be calculated, in which the FCD was excluded. Then the delay of the intersections and the normal travel time of the normal were obtained, and the the average link travel time was obtaind. The simulation re-sults verify the feasibility of this algorithm.

关 键 词：行程时间 浮动车 信号交叉口 

分 类 号：U491[交通运输工程—交通运输规划与管理]