• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>18th world congress on intelligent transport systems : Featuring its america's annual meeting and exposition >Estimating Path Travel Time by Aggregating Link Travel Times Obtained through Dedicated Short Range Communication Probe Data
【24h】

Estimating Path Travel Time by Aggregating Link Travel Times Obtained through Dedicated Short Range Communication Probe Data

机译：通过汇总通过专用短距离通信探测数据获得的链路传播时间来估算路径传播时间

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Korea Expressway Corporation (KEC) began utilizing vehicles equipped with the dedicatedrnshort range communication (DSRC) based electronic toll collection system as traffic probes forrncollecting path travel times, thereby reducing traffic congestion on highway. Since it is notrnalways possible to obtain sufficient sample size for calculating certain path travel time in thernDSRC system, KEC attempts to estimate the path travel time by the simple and progressivernaddition of link travel times on its component links as in past studies—often referred to as linkrnbased model (LBM). However, an assessment is lacking on how accurately the LBM estimatesrnthe path travel time. Hence, this study examines whether the LBM can be used for obtainingrnreliable path travel times. The analysis results reveal that the differences between the LBMrnestimates and the path travel times obtained from the probe vehicles traveling whole links on thernpath are less than 63 seconds. Thus, when the number of probe vehicles traveling whole links onrnits path is small, the aggregated link travel times proposed in this study can be used as arnsubstitute for path travel times. Although it is anticipated that the analysis results are sufficientrnto provide the feasibility of the LBM in estimating path travel times, the results should berntreated with caution because this study was based on relatively small samples due to datarnlimitation.
机译：韩国高速公路公司（KEC）开始使用配备了基于专用短距离通信（DSRC）的电子收费系统的车辆作为交通探针，以收集道路行驶时间，从而减少高速公路上的交通拥堵。由于不可能总是获得足够的样本量来计算DSRC系统中的某些路径行进时间，因此，KEC试图像过去的研究一样，通过在其组成链路上简单且渐进地增加链路行进时间来估计路径行进时间，通常称为基于链接的模型（LBM）。但是，缺乏对LBM估计路径行进时间的准确度的评估。因此，本研究检验了LBM是否可用于获得可靠的路径行进时间。分析结果表明，LBM值与探测车在整个路径上行驶的路径传播时间之间的差异小于63秒。因此，当探测车辆在整个路径上行驶的路径较少时，本研究中提出的总的链接行程时间可以用作路径行程时间的替代。尽管可以预期分析结果足以提供LBM在估计路径行进时间方面的可行性，但是由于本研究基于数据限制而相对较小的样本，因此应谨慎对待结果。

著录项

  • 来源
  • 会议地点 Orlando FL(US)
  • 作者

    Sangwoo Shim; Kangwon Shin; Keechoo Choi; Jake Namkoong; Sangsoo Lee;

  • 作者单位

    Ajou Transportation Research Institute, San5, Woncheon-dong, Yeongtong-gu, Suwon, Korea, 82-31-219-2541, artmania@ajou.ac.kr;

    Department of Urban Design and Development Engineering, Kyungsung University, 314-79 daeyeon-3dong, Nam-gu, Busan, 608-736, Korea, 82-51-663-4793, kangwon@ks.ac.kr;

    Center for Operations Analysis and Supportive Information System, Expressway Transportation Research Institute, Korea Expressway Corporation, 50-5, Sancheok-ri, Dongtan-myun, Hwangseong, Korea, 82-31-371-3317, jake@ex.co.kr;

    Division of Environmental, Civil and Transportation Engineering, Ajou University, San5, Woncheondong, Youngtong-gu, Suwon, Korea, 82-31-219-2538, keechoo@ajou.ac.kr;

    Division of Environmental, Civil and Transportation Engineering, Ajou University, San5, Woncheon-dong, Youngtong-gu, Suwon, Korea, 82-31-219-2539, sslee@ajou.ac.kr;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Dedicated short range communication; probe vehicle; path travel time; link travel time; aggregation;

    机译：专用的短距离通信；；探测车；；路径旅行时间；；链接旅行时间；；集合;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号