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Identification of collision formation trends based on traffic characteristics for freeway networks
George Washington University.
George Washington University.
Universidad Rey Juan Carlos.
Korea University.
Show others and affiliations
2018 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The objective of the paper is to investigate the effects of a variety of traffic characteristics on highway collision rates and to identify trends with respect to collision type. To realize such objective, collision data from the Highway Safety Information System (HSIS) and detector data from the California Department of Transportation (Caltrans) Performance Measurement System (PeMS) are utilized to calculate the collision involvement rates for the years 2005, 2006, and 2007 for a segment of eastern bound interstate I-80 in Emeryville, CA. Cluster analysis show an increase in the number of vehicles involved in collisions during congested traffic, however the highest collision rates occur during the most optimal driving conditions (free-flow). Moreover, this trend analysis shows how the fundamental diagram helps with the prediction of collision type in terms of traffic state transition and can be used to mitigate the most dangerous traffic scenarios with further investigation. To further support the cluster analysis findings, the authors found statistically significant correlations between collision rates and various flow, speed, and density measures at different time lags using time series analysis. A principal component analysis was also conducted for each investigated collision type to observe how many principal components could account for the majority of the variance in the data as well as the traffic characteristics that contribute most to these components.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2018.
Research subject
X RSXC
Identifiers
URN: urn:nbn:se:vti:diva-12953OAI: oai:DiVA.org:vti-12953DiVA, id: diva2:1204619
Conference
18th International Conference Road Safety on Five Continents (RS5C 2018), Jeju Island, South Korea, May 16-18, 2018
Available from: 2018-05-16 Created: 2018-05-08Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf