The Mayor's Ambient Noise Strategy - Greater London Authority

254 Mayor of London
The Mayor’s Ambient Noise Strategy
GLA group or GLA family see Functional bodies.
Green Chains linked, but separate, open spaces forming strategic
walking or cycling routes. Some overlap with ‘Green Corridors’.
Green Corridors relatively continuous areas of open space leading
through the built environment, which may link sites to each other and to
the Green Belt or Metropolitan Open Land. They often consist of railway
embankments and cuttings, roadside verges, canals, parks, playing fields
and rivers. They may allow animals and plants to be found further into the
built-up area than would otherwise be the case and provide an extension
to the habitats of the sites they join. Some overlap with ‘Green Chains’.
Green Wave Co-ordination of the timing of a sequence of traffic signals
so that a vehicle driven at a certain steady speed can encounter signals
successively at green, rather than having to stop repeatedly. This is more
difficult to achieve in a congested city with many conflicting movements
than, for example, in a town with a simple radial road network.
Groundborne vibration see Vibration.
Hard ground An acoustically reflecting surface, such as concrete, most
other paving materials, and water. Contrasts with ‘soft ground’.
Hertz or Hz Measure of sound frequency, sometimes referred to as
cycles per second.
Home working Working at home. This should be acceptable in most
housing situations provided the business use does not generate noise or
vibration from equipment, visitors, traffic or other activities which exceed
levels which could reasonably be expected from housing use alone. Home
workers would be advised to seek a determination in writing from their local
planning authority as to whether or not planning permission is needed.
Home Zones Residential streets designed and managed to allow people
to share former carriageways and pavements. Vehicles should only be able
to travel a little faster than walking pace (less than 10mph). This means
that the street can be modified to include children’s play areas, larger
gardens or planting such as street trees, cycle parking and facilities such
as seats at which residents can meet. Home Zones should therefore make
residential areas safer for pedestrians and cyclists, and improve the quality
of the street environment.