United States Department of Transportation
i
Accommodating Oversize/Overweight Vehicles at Roundabouts: [Technical Summary]
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2013-02-01
[PDF-195.75 KB]
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NTL Classification:NTL-FREIGHT-Trucking Industry;NTL-HIGHWAY/ROAD TRANSPORTATION-Design;NTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic Flow;
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Abstract:Safety and traffic operational benefits of roundabouts for the typical vehicle fleet (automobiles and small trucks) have been well documented. Although roundabouts have been in widespread use in other countries for many years, their general use in the United States began only in the recent past. 1990 is generally accepted as the year the first modern roundabouts were built in the United States (US), but their use is growing. Roundabouts can offer several advantages over signalized and stop-controlled intersection alternatives, including better overall safety performance, lower delays, shorter queues, better management of speed, and opportunities for community enhancement features. However, potential use of roundabouts with all their benefits may be greatly diminished if they cannot accommodate oversize/overweight vehicles (OSOW).
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