Safety improvement from edge lines on rural two-lane highways : tech summary.

Details

• Creators:
  Sun, Xiaoduan
• Corporate Creators:
  Louisiana Transportation Research Center
• Subject/TRT Terms:
  • Road markings
  • Traffic control devices
  • Highway traffic control
  • Rural highways
  • Traffic safety
  • Traffic crashes Roads--Louisiana--Design and construction--Safety measures
  • Road markings--Louisiana
  • Rural roads--Louisiana--Design and construction
  • Traffic accidents--Research
  • Traffic safety
• Publication/ Report Number:
  LTRC Report 487
• Resource Type:
  Tech Report
• Geographical Coverage:
  Louisiana
• Edition:
  Tech summary.
• Corporate Publisher:
  Louisiana Transportation Research Center
• Abstract:
  The previous study "Impact of Edge Lines on Safety of Rural Two-Lane Highways" completed in 2005 concluded that, ; with edge lines, centralization of a vehicle's position is more apparent during nighttime, which reduces the risk of runoff ; -road (ROR) accidents and head-on collisions, and edge line markings generally cause drivers to operate their vehicles ; away from the road edge, irrespective of the roadway alignment. Does the changed vehicle lateral position reduce ; the frequency of crashes? Answering this question is important to the Louisiana Department of Transportation and ; Development (LADOTD) since implementing and maintaining edge lines on narrow two-lane highways require signifi cant ; resources from LADOTD. There are more than 40 percent of rural two-lane highways in Louisiana with a pavement width ; (excluding shoulders) of less than 22 ft. with no edge lines.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/24251/dot_24251_DS1.pdf
• File Type:
  [PDF - 133.75 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:f54f0b9f4e7c87f4594220c7e680d2bb8267860b45eb51eb1683fa9f67d03043f756b57d3775465311826d6dbe1a48f9b763361de004c5d491bbdccb389171bb