United States Department of Transportation
i
Route-Choice Modeling Using GPS-Based Travel Surveys
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2013-06-06
[PDF-1.77 MB]
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Abstract:Roundabout are an emerging type of intersection design, are a relatively new addition to the transportation system in the United States. As a result, guidelines for roundabout design and construction are very broad and leave much room for subjectivity. This can result in roundabout designs with performance and safety well below the level that was anticipated. Further, the application and design of roundabouts is still evolving. As such, it is critically important that planners and engineers are kept up-to-date with the “state-of-the-art” and “best practices” for roundabout design so that these intersections will positively contribute to the transportation system. Education and outreach materials were developed and offered to designers and planners through a six-part webinar series that covered best-practices for planning, design, analysis, construction, and post-implementation techniques that can be applied to roundabouts in Alaska.
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