The Approving Board, in its discretion, may require roadway widening or other street improvements, including acceleration and deceleration lanes. Where such determination is made, the following minimum standards shall be applicable:
Legal Speed Limit
(mph)
Acceleration Lanes
Deceleration Lanes
Full Length
(feet)
Full Taper
(feet)
Length
(feet)
Taper
(feet)
25 to 39
200
150
150
200
40 to 49
350
200
200
250
50 or more
450
250
250
300
The area behind the taper shall be cleared of all obstructions for an appropriate distance from the center line of the road which would present a hazard to vehicles approaching the pavement taper edge.