M32 motorway M32 motorway The M32 is a motorway in South Gloucestershire and Bristol, England, which at roughly is one of Britain's shortest. It provides a link from the M4, a major motorway linking London and South Wales, to Bristol city centre and is maintained by Highways England, the national roads body. The motorway was planned concurrently with the M4 in the 1960s, and construction was complete to Eastville in northeast Bristol by 1970. The southernmost section was delayed by engineering challenges and industrial action, and did not open until 1975. Since the mid-2000s, there have been plans to use the M32
M4 relief road and narrows to a restricted two-lane section through the Brynglas Tunnels, where heavy congestion occurs at peak hours. A variable speed limit is in place between junctions 24 and 28. M4 sliproads at Junction 25 (Caerleon Road) are diverted to reduce traffic through the tunnels. M4 Westbound traffic joining at Junction 25 is diverted via Junction 25A/A4042 (Heidenheim Drive)/A4051 (Malpas Road) to Junction 26. Similarly eastbound traffic wishing to exit at Junction 25 is diverted from Junction 26 via the A4051/A4042/Junction 25A. This adds to congestion on Malpas Road and other local roads near Newport city centre at peak times.