Proactive detection of high collision concentration locations on highways

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dc.contributor.authorChung, Koohongko
dc.contributor.authorJang, Kitaeko
dc.contributor.authorMadanat, Samerko
dc.contributor.authorWashington, Simonko
dc.date.accessioned2013-03-11T12:17:16Z-
dc.date.available2013-03-11T12:17:16Z-
dc.date.created2012-03-19-
dc.date.created2012-03-19-
dc.date.issued2011-11-
dc.identifier.citationTRANSPORTATION RESEARCH PART A-POLICY AND PRACTICE, v.45, pp.927 - 934-
dc.identifier.issn0965-8564-
dc.identifier.urihttp://hdl.handle.net/10203/99295-
dc.description.abstractIn previous research (Chung et al., 2009), the potential of the continuous risk profile (CRP) to proactively detect the systematic deterioration of freeway safety levels was presented. In this paper, this potential is investigated further, and an algorithm is proposed for proactively detecting sites where the collision rate is not sufficiently high to be classified as a high collision concentration location but where a systematic deterioration of safety level is observed. The approach proposed compares the weighted CRP across different years and uses the cumulative sum (CUSUM) algorithm to detect the sites where changes in collision rate are observed. The CRPs of the detected sites are then compared for reproducibility. When high reproducibility is observed, a growth factor is used for sequential hypothesis testing to determine if the collision profiles are increasing over time. Findings from applying the proposed method using empirical data are documented in the paper together with a detailed description of the method. Published by Elsevier Ltd.-
dc.languageEnglish-
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD-
dc.titleProactive detection of high collision concentration locations on highways-
dc.typeArticle-
dc.identifier.wosid000294879300007-
dc.identifier.scopusid2-s2.0-80051682060-
dc.type.rimsART-
dc.citation.volume45-
dc.citation.beginningpage927-
dc.citation.endingpage934-
dc.citation.publicationnameTRANSPORTATION RESEARCH PART A-POLICY AND PRACTICE-
dc.identifier.doi10.1016/j.tra.2011.04.007-
dc.contributor.localauthorJang, Kitae-
dc.contributor.nonIdAuthorChung, Koohong-
dc.contributor.nonIdAuthorMadanat, Samer-
dc.contributor.nonIdAuthorWashington, Simon-
dc.type.journalArticleArticle; Proceedings Paper-
dc.subject.keywordAuthorHot spot identification-
dc.subject.keywordAuthorProactive detection-
dc.subject.keywordAuthorContinuous risk profile-
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