WWW.ACPA.ORG 11 SUMMER // 2024 plan can determine how to maintain traffic flow during construction. Roundabouts generally require more phases than standard concrete paving, depending on the size of the roundabout (diameter), number of lanes in the circulating roadway and the style of design employed. While complete or partial closures are optimal from a cost and time perspective, if work needs to be performed under traffic, it is usual to perform work in the driving lanes of the major roadway before those of the crossroad. Concentrating on the major roadway pavement generally produces a smoother-riding intersection. One common method for constructing roundabouts while maintaining traffic is to create a temporary by-pass which allows the contactor to build the circular roadway without disruption. About the American Concrete Pavement Association: The American Concrete Pavement Association (ACPA) is the national trade association for the concrete pavement industry. ACPA’s mission is to develop and protect concrete pavement markets through education, advocacy, marketing and industry technical leadership. ACPA’s vision is for concrete to be the pavement material of choice, benefitting communities and society within U.S. state and local economies. Founded in 1963, ACPA is the world’s largest trade association that exclusively represents the interests of those involved with the design, construction and preservation of concrete pavements. ROUNDABOUTS
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