Evaluating safety at Oregon‘s isolated, high-speed, signalized intersections Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/xg94hv12x

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  • Isolated approaches at signalized intersections with posted speed limits of 45 mph or greater generally experience large numbers of rear-end and angle collisions. A combination of less attentive drivers, high operating speeds, and less than ideal intersection characteristics can result in crash frequencies well above expected rates. A number of treatment options are available to target specific safety concerns at intersections, but it can be difficult or time-consuming to determine when an intersection is experiencing abnormal crash trends. The Oregon Department of Transportation (ODOT) does not currently have a system in place for evaluating safety at isolated, high-speed, signalized intersections (IHSSIs). This thesis describes the development of a method for efficiently evaluating safety and determining potential treatment options for IHSSIs. Specifically, this method identifies data collection requirements, determines expected crash frequencies based on intersection configuration, and provides a list of safety treatment options. This information is packaged into a safety evaluation template to allow for efficient and effective IHSSI evaluations.
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  • description.provenance : Approved for entry into archive by Linda Kathman(linda.kathman@oregonstate.edu) on 2010-05-20T15:37:04Z (GMT) No. of bitstreams: 1 KopperNeilH2010.pdf: 2839065 bytes, checksum: 94fb5c05638295ce56d2400eebc304b5 (MD5)
  • description.provenance : Approved for entry into archive by Julie Kurtz(julie.kurtz@oregonstate.edu) on 2010-05-19T21:10:33Z (GMT) No. of bitstreams: 1 KopperNeilH2010.pdf: 2839065 bytes, checksum: 94fb5c05638295ce56d2400eebc304b5 (MD5)
  • description.provenance : Submitted by Neil Kopper (koppern@onid.orst.edu) on 2010-05-13T16:33:27Z No. of bitstreams: 1 KopperNeilH2010.pdf: 2839065 bytes, checksum: 94fb5c05638295ce56d2400eebc304b5 (MD5)
  • description.provenance : Made available in DSpace on 2010-05-20T15:37:04Z (GMT). No. of bitstreams: 1 KopperNeilH2010.pdf: 2839065 bytes, checksum: 94fb5c05638295ce56d2400eebc304b5 (MD5)

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