Grade 1
Grade 1 : (1) A length of carriageway sloping longitudinally. (2) The rate of longitudinal rise (or fall) of a carriageway with respect to the horizontal, expressed as a percentage. (3) To design the longitudinal profile of a road. (4) To secure a predetermined level or inclination to a road or other surface. (5) To shape or smooth an earth, gravel, or other surface by means of a grader or similar implement. (6) To mix aggregates according to a particle size distribution
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