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Sigma KEE - Expressway
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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Expressway
Expressway is the subclass of SurfacedRoadways that are multiple-lane, limited-access highways designed for rapid travel by MotorVehicles.
Relationships      
Parents SurfacedRoadway 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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