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:
  • Ran off road crashes
  • Traffic crashes
  • Two lane highways
  • Rural highways
  • Traffic safety
  • Highway safety
• Publication/ Report Number:
  FHWA/TX-11/0-60311
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• Corporate Publisher:
  Texas Department of Transportation. Research and Technology Implementation Office
• 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 0-6031-1
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23853/dot_23853_DS1.pdf
• File Type:
  [PDF - 4.86 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:ff6fb51d6ec4e046cc6588ecc0a8aed3a7c9600b8a48703a2e5ac60011b0c030514b5f6680391f6af0442dc2290104875a39da6a7e3535dbfe9f992fc3b8d9fd