Development of Guidelines for Driveway Location and Median Configuration in the Vicinity of Interchanges

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Abstract:

Washburn, S. & A. Kondyli. Development of Guidelines for Driveway Location and Median Configuration in the Vicinity of Interchanges, Florida Department of Transportation: TRC-FDOT-036-2006, (2006)

This study aimed to develop quantitative tools and guidance for locating signalized intersections near interchanges. It includes a review of several factors that influence arterial operations near interchanges. The tool provides: 1) an assessment of the adequacy of a given signal spacing on progression quality; and 2) an estimate of the average travel speed between an interchange off ramp and the first downstream signal per arterial and driveway operational characteristics and signal distance. Findings indicate that a minimum ¼ mile is sufficient under a range of conditions considering arterial speed and progression quality, but ½ mile should be used in high growth areas.

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