Roads: Bitumens

Department for Transport written question – answered at on 26 May 2022.

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Photo of Christopher Chope Christopher Chope Conservative, Christchurch

To ask the Secretary of State for Transport, what assessment his Department has made of the proportion of road surfacing carried out on (a) national roads in England and (b) local roads in England which incorporates warm mix asphalt; and whether steps are being taken to increase the use of warm mix asphalt.

Photo of Trudy Harrison Trudy Harrison Parliamentary Under-Secretary (Department for Transport)

Warm mix asphalt is National Highways preferred choice of asphalt for all its road schemes and it is accelerating its use as standard across its supply chain as part of a drive toward net zero carbon emissions. More information can be found on National Highways’ website on Net zero highways: https://nationalhighways.co.uk/netzerohighways/.

For local roads, it is for each individual local highway authority to assess which parts of its network need repair and what standards and materials, including warm-mix asphalts, should be applied, based upon their local knowledge and circumstances.

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