M4 corridor M4 corridor The M4 corridor is an area in the United Kingdom adjacent to the M4 motorway, which runs from London to South Wales. It is a major high-technology hub. Important cities and towns linked by the M4 include (from east to west) London, Slough, Bracknell, Maidenhead, Reading, Newbury, Swindon, Bath, Bristol, Newport, Cardiff, and Swansea. The area is also served by the Great Western Main Line, including the South Wales Main Line, and London Heathrow Airport. Technology companies with major operations located in the area include Amazon, Citrix Systems, Dell, Alcatel-Lucent, Huawei, Lexmark, LG, Microsoft, Novell, Nvidia, O2, Panasonic,
M32 motorway Stoke Park estate. The project is part of the North Fringe to Hengrove MetroBus rapid transit route package, and involves creating new slip roads, a connecting route to Stoke Lane and a new bridge over the M32 to be completed by mid-2016. The bridge was lifted into place in June, which required closing the M32 to all traffic. The M32 is a relatively lightly trafficked route compared to neighbouring motorways such as the M4 and M5. In 2001, the average daily traffic flow was 40,400 vehicles northbound and 39,900 southbound, while in 2014, the combined flow for both directions averaged