Milton Keynes grid road system
Top layer of street hierarchy / From Wikipedia, the free encyclopedia
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The Milton Keynes grid road system is a network of predominantly national speed limit, fully landscaped routes that form the top layer of the street hierarchy for both private and public transport in Milton Keynes, Buckinghamshire. The system is unique in the United Kingdom for its innovative use of street hierarchy principles: the grid roads run in between districts rather than through them. This arrangement permits higher speed limits due to the absence of buildings close to the roads – although more recently some have been limited in part to 40 mph (64 km/h). The grid road system also serves an important purpose of discouraging through-traffic from travelling through neighbourhoods and thus reduces traffic noise and pollution in pedestrian areas. Motor traffic is segregated from pedestrian and leisure cycling traffic,[lower-alpha 1] which uses the alternative Milton Keynes redway system. Almost all grid junctions are roundabouts, and the absence of traffic lights (from most) enables free and efficient movement of traffic.