Central island of roundabout intersection ring-road

摘要

Central island (3) roundabout (2) roundabout (1), surrounded by a central ring (21) Circuit domed central island (3) the plan consists of two opposite concave arches (23, 23'), the end of the first arc (23 ) contact the ends of the second arc (23'). Bends (23, 23') comprise at least two parts of curves of different radius of curvature, wherein the first arc portion (23) with a smaller radius of curvature is disposed against a portion of the second arc (23') with a larger radius of curvature and a portion of the first arc (23) with a larger radius of curvature is disposed against a portion of the second arc (23') with a smaller radius of curvature and, on the central island (3) is visually separated canopy (24), on top of which is formed visually separated apex region (25) of circular layout, whose diameter (d) in plan view is smaller than the diameter (d) of the canopy (24), wherein the canopy (24) and an apex region (25) are arranged coaxially.