Road wrap

This motorway in Spain has a 450m soundproof wrapper to contain traffic noise

This four lane motorway in the Spanish city of Bilao is surrounded by a 450 metre noise proof wrapper to keep traffic sounds out of a nearby hospital. The structure is not classed as a tunnel as it its not completely enclosed. Its supported by 115 steel frames and is covered by plates of methacrylate and metal for acoustic insulation.

Motorway
Platform width: 25.3 metres
Lanes: 4 (2 in each direction)
Length of motorway under the sound wrap: 450 metres

Wrap structure
Support frames: 115 units
Distance between supports: 28 metres
Unit weight: 603.4 kg

Acoustic panels
Material: Methacrylate (15mm thickness)
Size of acoustic panels: 9.497 m2
Size of metal 'sandwich' panel: 3.799 m2

Budget
Approximate costs: €1.815.000

• Do you think the 'road wrapper' is a good idea and do you think it is called for in the UK? Or, do you consider it an unnecessary and costly extravagance?
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