PPS 13 Transportation and Land Use·Page 31·91
Traffic Calming and Low Traffic Speeds in Residential Areas
New residential areas should be designed to encourage low traffic speeds, and established residential areas should introduce traffic calming and road safety measures to improve environmental quality.
In the design of new residential areas low traffic speeds will be encouraged. In established residential areas the introduction of a range of traffic calming and road safety measures will help improve the quality of the environment.
Source — /Users/richardhill/Documents/planning-arch-project/data/documents/regional/PPS 13 - Transportation and Land Use.pdf