Seal Width
The seal width (also "surface width" and "width of seal") of a road is the distance between one edge of the road seal and the other.
Standard Seal Widths
The Austroads Guide to Road Design recommends a number of carriageway widths for various road types & traffic volumes. The minimum seal widths given below are based on the Austroads carriageway widths. It should be noted however, that seal width is not always equal to carriageway width.
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