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http://dx.doi.org/10.7470/jkst.2015.33.4.417

Development of a Novel Integrated Evaluation Index for Freeway Traffic Data  

PARK, Hyunjin (Department of Transportation and Logistics Engineering, Hanyang University)
YOON, Mijung (Information and Communication Technology Center, Korea Expressway Corporation)
KIM, Hae (Information and Communication Technology Center, Korea Expressway Corporation)
OH, Cheol (Department of Transportation and Logistics Engineering, Hanyang University)
Publication Information
Journal of Korean Society of Transportation / v.33, no.4, 2015 , pp. 417-429 More about this Journal
Abstract
Evaluation of traffic data quality is a backbone of better traffic information and management systems because it directly affects the reliability of traffic information. This study developed an integrated index for evaluating the quality of archived intelligent transportation systems (ITS) data. Two novel indices including spatio-temporal consistency and severity of missing data were devised and integrated with existing indices such as availability and completeness. An evaluation framework was proposed based on the developed integrated index. Both analytical hierarchical analysis (AHP) technique and entropy method were adopted to derive mixed weighting values to be used for the integrated index. It is expected that the proposed methodology would be effectively used in enhancing the quality of traffic data as a part of traffic information system.
Keywords
archived data; data evaluation; mixed weighting values; traffic data management; traffic data quality;
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Times Cited By KSCI : 2  (Citation Analysis)
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