| 基于出租车GPS数据的路段平均速度估计模型 |
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| 引用本文： | 姜桂艳,常安德,李琦,伊峰.基于出租车GPS数据的路段平均速度估计模型[J].西南交通大学学报,2011,46(4):638-644. |
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| 作者姓名： | 姜桂艳 常安德 李琦 伊峰 |
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| 作者单位： | 1. 吉林大学汽车动态模拟国家重点实验室,吉林长春130022;吉林大学交通学院,吉林长春130022
2. 吉林大学交通学院,吉林长春,130022 |
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| 基金项目： | 国家863计划资助项目(2009AA11Z218); 吉林大学研究生创新基金项目(20101025)的资助 |
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| 摘 要： | 为了解决现有基于GPS数据的路段平均速度估计模型应用条件苛刻、难以满足低成本和高精度信息需求问题,考虑不同类型GPS车辆运行特征,设计了两个基于出租车GPS数据估计路段平均速度的改进模型.基于两个改进模型,设计了路段平均速度的融合估计方法.用某城市局部路网的出租车GPS数据验证两个改进模型,并与传统模型进行了对比分析....
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| 关 键 词： | 交通信息系统 GPS定位出租车 平均速度 估计模型 |
Estimation Models for Average Speed of Traffic Flow Based on GPS Data of Taxi |
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| JIANG Guiyan,CHANG Ande,LI Qi,YI Feng.Estimation Models for Average Speed of Traffic Flow Based on GPS Data of Taxi[J].Journal of Southwest Jiaotong University,2011,46(4):638-644. |
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| Authors: | JIANG Guiyan CHANG Ande LI Qi YI Feng |
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| Institution: | JIANG Guiyan1,2,CHANG Ande2,LI Qi2,YI Feng2(1.State Key Laboratory of Automobile Dynamic Simulation,Jilin University,Changchun 130022,China,2.College of Transportation,China) |
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| Abstract: | The existing average speed estimation models based on GPS(global positioning system) data of taxis are not applicable where high precision and low cost are of necessities.Two traditional models,namely a time integral model and a time interpolation model,based on the GPS data of taxis were modified,and the two modified models were combined to form a hybrid model.The three new models were verified using GPS data of taxis obtained from a part of road network of a large city.The results shown that the estimatin... |
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| Keywords: | traffic information system GPS equipped taxis average speed estimation model |
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