General Comments

Speed humps are perhaps the oldest form of traffic calming. There are now a variety of different types including speed cushions which can be used, providing there is enough road width, to provide a smoother passage for heavy goods vehicles, buses and emergency vehicles.

Whilst effective they can be intrusive to the environment and can raise strong local feelings.

Effectiveness

The most effective form of speed reduction. Speed reductions of around 10 mph can be expected (depending on the initial speed).

Cost

£1000 (simple pre-made hump) - £10,000 (custom constructed speed table)

Points to note

-Can be noisy especially where HCVs are involved
-Require advanced slowing down features
-Street lighting must be in place
-Bus companies and emergency services generally object unless speed cushions can be provided
-Road humps can only be used where the speed limit is 30mph or less

Examples in Cambridgeshire

- The Offords
-Cottenham
-Papworth Everard
-Storey's Way, Cambridge
-Norwich Road, Wisbech
-High Street, Chatteris
-Hilton
- Gamlingay

Best suited locations

Speed humps are well suited to low speed residential roads with small numbers of HCVs. On busier roads they can be used where speed reduction is essential and there is no other effective measure.