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Road lengths and conditions

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  • Release date: 10 December 2013
  • Period covered: 2013
  • Next update: 10 December 2014
An annual report showing information by road class.

Key points

  • The total road length in Wales in 2013 was 34,437 km.
  • Unclassified minor surfaced roads contribute approximately half the total road length in Wales.
  • Powys covers by far the largest land area of the Welsh local authorities. It accounts for the highest proportion of all A Trunk roads (27 per cent), B and C roads (21 per cent) and minor surfaced roads (12 per cent), resulting in an overall 16 per cent of the total road length of Wales.
  • The greatest length of motorway is in Newport, which accounts for 19 per cent of the total motorway in Wales.
  • Just over one-third (34 per cent) of the road length of Wales is classed as being in built-up areas.
  • In 2013, the greatest length of dual carriageway was in Flintshire, which accounts for 11 per cent of the total dual carriageway in Wales.
  • In 2012, 11.2 per cent of the motorway network and 12.8 per cent of the trunk road network required close monitoring of structural condition compared with 10.0 per cent and 9.5 per cent respectively in 2011.
  • During 2012-13 Powys had the highest proportion of Principal (A) roads in need of further investigation, 20 per cent.


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