Report 186 Traffic calming - road hump schemes using 75mm high humps

Publication Year

1996

Document Status

Current

Abstract

Describes a study of 72 sites in the UK where 75mm high humps have been used and it assesses their effect on vehicle speeds. It gives speed spacing relationships and concludes that 75mm high humps (with ramp gradients 1:10 to 1:15) can be used to reduce speeds to below 20 mph. Shallower ramp gradients or humps lower that 75mm high are not so effective and more suitable for keeping speeds to below 30 mph.

Publisher Information