FAQs
- Larger wheelbase emergency vehicles (e.g., ambulances and fire appliances) can travel more quickly with less discomfort than sinusoidal humps; and,
- Lower noise and vibration would be felt by adjacent residents and businesses, when compared to sinusoidal humps.
- Less effective in reducing traffic speeds than sinusoidal humps;
- Speed cushions are not preferred by cyclists because they constrain the ability of cyclists to choose their preferred position in the carriageway; and,
- Larger wheelbase non-emergency vehicles (e.g., SUVs, commercial vans, and HGVs) are still able to travel over the speed cushions relatively unhindered.
- More effective in reducing traffic speeds than speed cushions, as motorists are unable to straddle them;
- Sinusoidal humps are more effective in slowing down larger wheelbase non-emergency vehicles (e.g., SUVs, commercial vans, and HGVs) compared to speed cushions; and,
- Sinusoidal humps are preferred by cyclists due to increased comfort.
- Larger wheelbase emergency vehicles (e.g., ambulances, fire appliances) response times will be slowed down further with more discomfort felt than speed cushions; and,
- Higher noise and vibration would be felt by adjacent residents and businesses, when compared to speed cushions.
What are the advantages and disadvantages for speed cushions (Option 1)?
Benefits – Dis-benefits – |
What are the advantages and disadvantages for sinusoidal humps (Option 2)?
Benefits – Dis-benefits – |
How are the locations for the humps chosen?
The hump locations are chosen by the consultants designing the scheme, to ensure adequate spacing as per the guidance and site suitability (e.g. avoiding direct conflict with resident dropped kerbs). Humps do not impact on parking capacity as you can continue to park on top of them.
Are speed limit repeater signs provided in a 20mph zone?
In a 20mph zone, we generally only mark 20mph roundels on the carriageway rather than placing repeater signs.