Which road linking London and Birkenhead is situated close to Bletchley?
A41 road The A41 is a major trunk road in England that links London and Birkenhead, although it has now in parts been superseded by motorways. It passes through or near various towns and cities including Watford, Kings Langley, Hemel Hempstead, Aylesbury, Solihull, Birmingham, West Bromwich, Wolverhampton, Newport, Whitchurch, Chester and Ellesmere Port.
North Circular Road The North Circular Road (officially the A406 and sometimes known as simply the North Circular) is a 25.7 mi ring road around Central London in England. It runs from Chiswick in the west to Woolwich in the east, and connects the various suburbs in the area, including Ealing, Willesden, Wembley, Southgate, Tottenham, Woodford and Barking. Together with its counterpart, the South Circular Road, it forms a ring road through the Outer London suburbs. This ring road does not make a complete circuit of the city, being C-shaped rather than a complete loop as the crossing of the River Thames in the east is made on the Woolwich Ferry.