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.
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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.

Filetype[PDF-919.57 KB]


English
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  • Creators:
    Gårder, Per
  • Corporate Creators:
    Maine. Dept. of Transportation. Transportation Research Division
  • Subject/TRT Terms:
  • 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.

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