macadam stone road surface |
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navigate by keyword : block compacted construction crushed engineer hard john layers loudon macadam mcadam method path road roadway route scottish shallow singlesized stone stones street surface texture track traffic type way |
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Macadam is a type of road construction, pioneered by Scottish engineer John Loudon McAdam around 1820, in which single-sized crushed stone layers of small angular stones are placed in shallow lifts and compacted thoroughly. |
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