Analysis of roadway departure crashes on two lane rural roads in Texas.

Details

• Creators:
  Lord, Dominique ; Brewer, Marcus A. ; Fitzpatrick, Kay ; Geedipally, Srinivas R. ; Peng, Yichuan
• Corporate Creators:
  Texas Transportation Institute
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Single vehicle crashes
  • Traffic crashes
  • Ran off road crashes
  • Two lane highways
  • Rural highways Single-vehicle accidents--Texas
  • Rural roads--Texas--Safety measures
• Publication/ Report Number:
  FHWA/TX-11/0-6031-1;Report 0-6031-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• Edition:
  Technical report; Sept. 2008¿Aug. 2011.
• Corporate Publisher:
  Texas Transportation Institute
• Abstract:
  This three-year research effort was undertaken to identify factors that influence the number and severity of ; roadway departure crashes on rural two-lane highways in Texas and provide engineering countermeasures to ; reduce this type of crash. The study objectives were accomplished by analyzing crash, traffic flow, and ; geometric data between 2003 and 2008 and conducting site visits at 20 sites having the highest crash rates at ; four TxDOT districts. ; The study results showed that the proportion of roadway departures varied from 25 percent to 52 percent for ; all crashes occurring on the rural two-lane highway network. Proportionally more crashes occur on ; horizontal curves than on tangents and during nighttime. Distracted driving and speeding were found to be ; important contributing factors. ; To help reduce the number and severity of roadway departures, the research team proposed several medium to ; low-cost countermeasures that can realistically be implemented by TxDOT. These countermeasures were ; grouped into three categories: targeted for horizontal curves, general applications, and new and innovative ; treatments. For each treatment, the information focused on the general characteristics, key design features, ; safety effectiveness, cost (when available), and additional resources where the reader can find more detailed ; information about the treatment. More than 25 treatments were described for reducing roadway departure ; crashes.
  More +
• Format:
  PDF
• Funding:
  Project 0-6031
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23868/dot_23868_DS1.pdf
• File Type:
  [PDF - 4.85 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:382287d4558f8955da5fe13336fc5408925d5d20a37563cad4f95f69d2b67b1c290995894f8b5cbee0b744eb08b8763e58eb0eca487e9d3950f1eae0f669306c