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Experience in Data Quality Assessment on Archived Historical Freeway Traffic Data.

机译:曾对历史高速公路交通数据进行数据质量评估的经验。

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摘要

Concern regarding the quality of traffic data exists among engineers and planners tasked with obtaining and using the data for various transportation applications. While data quality issues are often understood by analysts doing the hands on work, rarely are the quality characteristics of the data effectively communicated beyond the analyst. This research is an exercise in measuring and reporting data quality. The assessment was conducted to support the performance measurement program at the Maricopa Association of Governments in Phoenix, Arizona, and investigates the traffic data from 228 continuous monitoring freeway sensors in the metropolitan region.;Results of the assessment provide an example of describing the quality of the traffic data with each of six data quality measures suggested in the literature, which are accuracy, completeness, validity, timeliness, coverage and accessibility. An important contribution is made in the use of data quality visualization tools. These visualization tools are used in evaluating the validity of the traffic data beyond pass/fail criteria commonly used. More significantly, they serve to educate an intuitive sense or understanding of the underlying characteristics of the data considered valid. Recommendations from the experience gained in this assessment include that data quality visualization tools be developed and used in the processing and quality control of traffic data, and that these visualization tools, along with other information on the quality control effort, be stored as metadata with the processed data.
机译:负责获取和使用各种交通应用数据的工程师和计划人员之间对交通数据的质量存在担忧。尽管分析人员通常会动手处理数据质量问题,但很少将数据质量特征有效地传达给分析人员以外的人员。这项研究是测量和报告数据质量的一项练习。这项评估是为了支持亚利桑那州凤凰城马里科帕政府协会的绩效评估计划而进行的,并调查了大都市地区228个连续监测的高速公路传感器的交通数据。评估结果提供了一个描述质量的示例。交通流量数据具有文献中建议的六种数据质量度量,即准确性,完整性,有效性,及时性,覆盖范围和可访问性。在使用数据质量可视化工具方面做出了重要贡献。这些可视化工具用于评估超出常用的通过/失败标准的交通数据的有效性。更重要的是,它们用于教育人们对被认为有效的数据的潜在特征的直观认识或理解。从评估中获得的经验提出的建议包括:开发数据质量可视化工具并将其用于交通数据的处理和质量控制中,并将这些可视化工具以及其他有关质量控制工作的信息与元数据一起存储为元数据。处理的数据。

著录项

  • 作者

    Samuelson, Jothan P.;

  • 作者单位

    Arizona State University.;

  • 授予单位 Arizona State University.;
  • 学科 Engineering Civil.;Transportation.
  • 学位 M.S.
  • 年度 2011
  • 页码 97 p.
  • 总页数 97
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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