Traffic calming consists of a package of measures affecting the movement of vehicles and other traffic for the purpose of promoting safety, or preserving or improving the environment. The essence of traffic calming lies not so much in the use of specific measures, but in the achievement of the objectives of improving driver awareness and behaviour. Traffic calming is a generic term used in reference to tools used to change the horizontal and/or vertical alignments, introduce road narrowing/build outs, roundabouts, entrance gateways or coloured surfacing.

Speed humps, platforms and cushions are probably the most effective form of traffic calming available for controlling vehicle speeds. Their effectiveness relies on causing inconvenience to drivers and therefore they may not always be popular with the very people who would gain from reduced traffic speeds.

Traffic calming is principally used in residential roads, shopping areas and outside schools. Works are financed by the County Council and/or developers through agreements. Consultation on proposals takes place with elected Members, the Public, Town/Parish Councils, statutory groups and others, usually through direct contact and public exhibitions.