By now, you probably are aware that the 2010 Highway Capacity Manual (HCM) includes an analysis method for analyzing roundabouts. Unlike the roundabout analysis method within the HCM 2000, the HCM 2010 includes a robust method for analyzing both one and two lane roundabouts with or without slip ramps. The method was largely developed using field data collected at 31 locations within the U.S. NCHRP Report 572 provides an overview of the roundabout and the data collected. |
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