Safety Evaluation of Permanent Raised Pavement Markers (2004) / Chapter Skim
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Chapter 7 - Conclusions
Chapter 7 - Conclusions
Pages 51-52
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From page 51... ...
Similar safety effects were not found in Pennsylvania, where PRPMs were implemented at locations selected on the basis of total nighttime crash history. Improved delineation resulting from the implementation of PRPMs impacts two types of driver behavior that will affect safety at night and in poor visibility conditions: lane control and speed control.
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From page 52... ...
It is also highly recommended that a prospective study be conducted to investigate how the presence of snowplowable PRPMs, under different roadway and PRPM design conditions, influence a driver's choice of an appropriate travel speed and lane position. This type of research would provide information that would explain the seemingly counterintuitive findings that PRPMs are less effective on roadways with a higher degree of curvature and lower roadway design standards.
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