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T.P«D.M,V.2,4<br />

4.5.14 The Circulatory Carriageway<br />

4.5*14*1 The width of the circulatory carriageway should be constant and<br />

lie between 1.0 and 1.2 times the maximum entry width.<br />

4*5.14.2 The circulatory carriageway should, if possible, be circular in<br />

plan, avoiding deceptively tight bends. Additionally, short<br />

lengths of reverse curve between entry and adjacent exit should<br />

be avoided by linking entry and exit curves or joining them with<br />

a straight. At T-junction configurations however, as shown in<br />

Diagram No* 4.5*11.2, reverse curvature may result.

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