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University of Massachusetts Amherst
Modern roundabout approach; Vehicle Speed; Microsimulation; S-curve or Chicane; deflection angle; line of sight
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Impact Of S-Curve On Speed In A Modern Roundabout, Akshaey Sabhanayagam
Impact Of S-Curve On Speed In A Modern Roundabout, Akshaey Sabhanayagam
Masters Theses
According to the US Department of Transportation, around 20 people die on a daily basis in a signalized intersection, with most of these resulting from angle or head-on collisions. The US-DoT’s Federal Highway Administration (FHWA) has identified modern roundabout intersections to be substantially safer than signalized intersections, due in part to the reduction in conflict points from 32 in a traditional signalized intersection to 8 in a modern roundabout. Despite the increased adoption of modern roundabouts across the US, there are a number of specific design elements for which the direct impact they have on operational and safety related performance …