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
D
Depressed Curb – US
A section of concrete curb in which the height of the vertical face has been reduced to allow passage while maintaining positive guidance and drainage control (sse also “Drop Curb”).
Directional Closure -US
A curb extension or vertical barrier extending to approximately the centerline of a roadway, effectively obstructing (prohibiting) one direction of traffic.
Divided Highway – US
A road in which the two directions of traffic are separated by a central barrier or strip of land, known as a “Central Reservation” or “Median” (see also “Dual Carriageway”).
Dropped Kerb – UK
A ramp leading smoothly down from a pavement (footpath) to a street, rather than abruptly ending with a kerb (see also “Curb Cut” and “Pram Ramp”).
Dual Carriageway – UK
A road in which the two directions of traffic are separated by a central barrier or strip of land, known as a “Central Reservation” or “Median” (see also “Divided Highway”).