speed bumps

[wooo12]

Do all speed bumps have to have the white markings on them so drivers can see them clearly?

[Buenchico]

The short answer to your question is simply 'No'. There is no legislation which requires speed humps to be marked in any particular way.

Highway engineers will work to (non-statutory) codes which require them to warn drivers about the presence of traffic calming measures. For example, the roads on the estate where I live are all subject to a 20mph speed limit. As long as you drive at 20mph, there's no big impact when you cross the many speed humps. (i.e. the presence of the 'Traffic Calming: 20mph' signs is regarded as sufficient waning of the speed humps).

Similarly, a sign stating 'Humps for Next 800 Yards' would also be regarded as giving sufficient warning. The idea is that drivers should reduce their speed for the whole of that length (and not just over the speed humps).

Anyone driving at the correct speed within a traffic-calmed area should have no need to bother about the location of the speed humps, so there's no need to specifically indicate their presence with individual markings.

Chris

[kramer81]

There are plenty of those red speed cushions in in 30 zones in my area without any warning. If you hit one of those at 30 you know about it!