Speed bump
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Speed bumps are a class of traffic calming devices that use vertical deflection to slow motor-vehicle traffic in order to improve safety conditions. Speed bumps are also known as a sleeping policeman
Speed bump and warning signs
A road sign "Humps for 1 mile" in Hertfordshire, England
Speed bump made of asphalt
Speed bump made of rubber
Breakover angle
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Breakover angle or rampover angle is the maximum possible supplementary angle that a vehicle, with at least one forward wheel and one rear wheel, can drive over without the apex of that angle touching
Speed bump
…Derby residents prompted the removal of 146 speed bumps from streets at a cost of £460,000. Similar incidents have been reported elsewhere in the UK. Breakover angle Glossary of road transport terms…
Example of a vehicle at a significant breakover angle.