SurfacedRoadway
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Sigma KEE - SurfacedRoadway
浮出水面的巷道
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SurfacedRoadway is the subclass of Roadways that have been improved by covering them with a substance to increase the hardness and smoothness of the surface. Covering materials include pavement, concrete, asphalt, macadam, and gravel.
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巷道 |
Roadway is the subclass of LandTransitways that are areas intended for surface travel by self-powered, wheeled vehicles, excluding those that travel on tracks. Roadways have been at least minimally improved to enable the passage of vehicles. Roadways include dirt and gravelled roads, paved streets, and expressways.
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高速公路 | Expressway is the subclass of SurfacedRoadways that are multiple-lane, limited-access highways designed for rapid travel by MotorVehicles. |
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