Toolbox of countermeasures for rural two-lane curves.

Details

• Creators:
  Hallmark, Shauna ; Hawkins, Neal ; Smadi, Omar
• Corporate Creators:
  Iowa State University. Center for Transportation Research and Education
• Corporate Contributors:
  United States. Department of Transportation. Research and Innovative Technology Administration
• Subject/TRT Terms:
  • Traffic crashes
  • Ran off road crashes
  • Highway curves
  • Two lane highways
  • Countermeasures
  • Rural highways
  • Single vehicle crashes
  • Highway traffic control
  • Paved shoulders
• Publication/ Report Number:
  IHRB Project TR-579
• Resource Type:
  Tech Report
• Geographical Coverage:
  Iowa
• Corporate Publisher:
  Iowa. Dept. of Transportation ; Midwest Transportation Consortium
• Abstract:
  The Federal Highway Administration (FHWA) estimates that 58 percent of roadway fatalities are lane departures, while 40 percent of fatalities are single-vehicle run-off-road (SVROR) crashes. Addressing lane-departure crashes is therefore a priority for national, state, and local roadway agencies. Horizontal curves are of particular interest because they have been correlated with increased crash occurrence. ; This toolbox was developed to assist agencies address crashes at rural curves. The main objective of this toolbox is to summarize the effectiveness of various known curve countermeasures. ; While education, enforcement, and policy countermeasures should also be considered, they were not included given the toolbox focuses on roadway-based countermeasures. Furthermore, the toolbox is geared toward rural two-lane curves. ; The research team identified countermeasures based on their own research, through a survey of the literature, and through discussions with other professionals. Coverage of curve countermeasures in this toolbox is not necessarily comprehensive. ; For each countermeasure covered, this toolbox includes the following information: description, application, effectiveness, advantages, and disadvantages.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/26101/dot_26101_DS1.pdf
• File Type:
  [PDF - 3.73 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:cac15649c4b596c388bdf5ef5b47eec599699debed6a62be0d15f25542fe7cd4a956dd1e5947de3238baa307ca26b1365e179f29a11fd731f88a70268e742b44