 Wolverhampton city centre forms the main focal point for the road network within the northwestern part of the West Midlands conurbation, and out into the rural hinterland of Staffordshire and Shropshire.The road network within the boundaries of the city council area is entirely maintained by Wolverhampton City Council, whilst those parts of the urban area outside the city council area have their networks maintained by Staffordshire County Council, with the exception of M54 and A449 on the northern fringes of the urban area which are maintained by the Highways Agency.Major historical improvements to the city's road network include Thomas Telford's Holyhead Road (now part of A41), which was constructed between 1819 and 1826 to improve communications between London and Holyhead, and hence to Ireland.