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
• Corporate Publisher:
  Maine. Dept. of Transportation
• 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
• Description:
  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.
• 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