Definitions for "Design Speed"
Keywords:  roadway, safe, bikeway, bicycle, speed
The maximum safe speed that can be maintained when conditions permit the design features of the highway to govern.-- Directional distribution. The percentage of the two-way traffic volume traveling in the direction of interest, expressed as a decimal.
the maximum safe speed at which a vehicle can be expected to operate on a roadway. The speed for which a roadway is designed - this may not be the posted speed.
A speed fixed for the design of minimum geometric features of a road.