Scipediacontent: Scipediacontent moved page Draft Content 738947937 to Monsere et al 2010a

2021-02-11T13:12:46Z

Scipediacontent moved page Draft Content 738947937 to Monsere et al 2010a

Scipediacontent: Created page with " == Abstract == Traffic oscillations are typical features of congested traffic flow that are characterized by recurring decelerations followed by accelerations (stop-and-go d..."

2021-02-11T13:12:42Z

Created page with " == Abstract == Traffic oscillations are typical features of congested traffic flow that are characterized by recurring decelerations followed by accelerations (stop-and-go d..."

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== Abstract ==

Traffic oscillations are typical features of congested traffic flow that are characterized by recurring decelerations followed by accelerations (stop-and-go driving). The negative environmental impacts of these oscillations are widely accepted, but their impact on traffic safety has been debated. This report describes the impact of freeway traffic oscillations on traffic safety. This study employs a matched case-control design using high resolution traffic and crash data from a freeway segment. Traffic conditions prior to each crash were taken as cases, while traffic conditions during the same periods on days without crashes were taken as controls. These were also matched by presence of congestion, geometry and weather. A total of 82 cases and about 80,000 candidate controls were extracted from more than three years of data from 2004 to 2007. Conditional logistic regression models were developed based on the case-control samples. To verify consistency in the results, 20 different sets of controls were randomly extracted from the candidate pool. The results reveal that the standard deviation of speed (thus, oscillations) is a significant variable, with an average odds ratio of about 1.08. This implies that the odds of a (rear-end) crash occurring increases by about 8 percent with an additional unit increase in the standard deviation of speed. The average traffic states prior to crashes were less significant than the speed variations in congestion.

== Original document ==

The different versions of the original document can be found in:

* [http://dx.doi.org/10.15760/trec.16 http://dx.doi.org/10.15760/trec.16]

* [https://pdxscholar.library.pdx.edu/cgi/viewcontent.cgi?article=1016&context=trec_reports https://pdxscholar.library.pdx.edu/cgi/viewcontent.cgi?article=1016&context=trec_reports],
: [https://pdxscholar.library.pdx.edu/trec_reports/17 https://pdxscholar.library.pdx.edu/trec_reports/17],
: [https://eprints.qut.edu.au/80740 https://eprints.qut.edu.au/80740],
: [https://ntl.bts.gov/lib/34000/34200/34224/OTREC-RR-10-13_final.pdf https://ntl.bts.gov/lib/34000/34200/34224/OTREC-RR-10-13_final.pdf],
: [https://works.bepress.com/christopher_monsere/60 https://works.bepress.com/christopher_monsere/60],
: [https://trid.trb.org/view.aspx?id=968898 https://trid.trb.org/view.aspx?id=968898],
: [https://qa-eprints.qut.edu.au/171430 https://qa-eprints.qut.edu.au/171430],
: [https://core.ac.uk/display/37775651 https://core.ac.uk/display/37775651],
: [https://academic.microsoft.com/#/detail/203820722 https://academic.microsoft.com/#/detail/203820722]

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Monsere et al 2010a - Revision history

Scipediacontent: Scipediacontent moved page Draft Content 738947937 to Monsere et al 2010a

Scipediacontent: Created page with " == Abstract == Traffic oscillations are typical features of congested traffic flow that are characterized by recurring decelerations followed by accelerations (stop-and-go d..."