Accuracy Issues with Route Choice Data Collection by Using Global Positioning System
Accuracy Issues with Route Choice Data Collection by Using Global Positioning System
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DOI：
10.3141/1660-09
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发表时间：
1999
影响因子：
1.7
通讯作者：
J. Wolf;S. Hallmark;M. Oliveira;R. Guensler;W. Sarasua
中科院分区：
文献类型：
--
作者：
J. Wolf;S. Hallmark;M. Oliveira;R. Guensler;W. Sarasua
全球定位系统（GPS）技术的进步现在使GPS路线选择数据收集用于旅行日记研究和其他运输应用成为现实。在增加数据量、提高数据质量以及获取曾经被认为过于繁重或昂贵的新数据元素方面，机会比比皆是。例如，自动化旅行日记可以通过按下按钮以电子方式捕获旅行目的、出发地和目的地位置名称以及司机和乘客姓名。随附的GPS接收器可以准确地捕捉出发地和目的地的位置、出发和到达时间，以及行程长度和旅行路线。这些丰富的数据可用于验证或校准出行需求模型，用于车载信息系统分析，以及用于对给定网络中的移动的源排放进行建模。然而，这些数据收集和处理的进步确实有其成本。事实上，在选择和使用全球定位系统技术来收集路线选择数据时，应小心谨慎。本文的重点是有关的精度问题，路线选择数据的收集和处理，利用GPS技术。供应商的规格，观测技术，数据收集程序，数据后处理，以及使用一个可靠的和准确的地理信息系统（GIS）数据库的重要性进行了详细审查。对GPS精度计算中的关键问题进行了评述。最后，最近在亚特兰大的经验报告，并提供建议，旨在减少引入错误的自动路线选择数据收集。
Advancements in global positioning system (GPS) technology now make GPS route choice data collection for travel diary studies and other transportation applications a reality. Opportunities abound for increased quantities of data, for improved quality of data, and for new data elements that were once considered too burdensome or expensive to capture. For example, automated travel diaries can electronically capture trip purpose, origin and destination location names, and driver and passenger names at the push of a button. An accompanying GPS receiver can accurately capture origin and destination locations, departure and arrival times, as well as trip lengths and travel routes. This wealth of data can be used to validate or calibrate travel demand models, for in-vehicle information systems analysis, and for modeling mobile source emissions across a given network. These data collection and processing advancements do have their costs, however. In fact, care and caution should be exercised when GPS technologies are selected and used to collect route choice data. The focus of this paper is on the accuracy issues related to route choice data collection and processing using GPS technology. Vendor specifications, observation techniques, data collection procedures, data postprocessing, and the importance of using a reliable and accurate geographic information system (GIS) database are examined in detail. Critical issues in the calculation of GPS accuracy are reviewed. Finally, recent experience in Atlanta is reported, and recommendations designed to reduce the introduction of error into automated route choice data collection are provided.