The allowable tolerance of horizontal alignment for carriageway edges is ±25 mm.

The allowable tolerance of horizontal alignment for carriageway edges is ±25 mm. Correct Answer True

The horizontal alignment of the pavement must also be checked for its quality and prevent major failures. The tolerance of the same has been laid down in clause 7.2.2 IRC:SP:11-1984. For all highways except hill roads, the tolerance for carriageway edges is ±25 mm.
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