A before-and-after study of traffic conflicts at the U.S. Route One entrance to Camden Hills State Park : an evaluation of a portion of a context sensitive design project.

Details

• Creators:
  Gårder, Per
• Corporate Creators:
  Maine. Dept. of Transportation. Transportation Research Division
• Subject/TRT Terms:
  • Before and after studies
  • Traffic conflicts
  • Context sensitive design
  • Intersections
  • Traffic accidents
  • Traffic safety
  • Speed limits
  • Accident analysis
• Publication/ Report Number:
  42888
• Resource Type:
  Tech Report
• Geographical Coverage:
  Maine
• Corporate Publisher:
  Maine. Dept. of Transportation
• Abstract:
  Route 1 has been reconstructed as a Context Sensitive Design Project in the Camden, ; Maine area. The purpose of this study is to evaluate the safety effect of the reconstruction of the highway at the entrances to the Camden Hills State Park. The two T-intersections were replaced with a standard cross intersection with stop control on the ; park driveways and two refuge islands on Route 1, protecting left-turning vehicles and ; narrowing down the travel lanes. Speeds were reduced only marginally by about 3 mph, ; far from the 10-mph reduction in speed limit that was posted in connection with the reconstruction. Still, in the before situation, almost 20% of southbound drivers exceeded a ; speed of 50 mph. In the after situation, almost no drivers exceeded that speed. Traffic ; conflict studies, as well as analysis of crashes before the reconstruction, lead the author to ; conclude that the crash frequency has been cut to roughly one-third of the one existing ; prior to the reconstruction. The best estimate of the future crash rate would be around ; 0.25 reported crashes per year. Overall, it can be concluded that the reconstruction has ; been very successful in improving the safety situation at the Camden Hills State Park entrances.
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28024/dot_28024_DS1.pdf
• File Type:
  [PDF - 919.57 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:7a89bc89116ab48e47877ba7327b490ed2fadf5d9f660456acf1474e2566da54