|Location Map ( geo)|
|From:||Upton, Hampshire (SU371174)|
|To:||Redbridge, Southampton (SU373137)|
|Distance:||2.3 miles (3.7 km)|
|Meets:||A3057, M27, A35|
|Route outline (key)|
Being west of the M3, it's often claimed that the M271 is in the three-zone, but this is not the case as the zone 2-3 boundary follows a theoretical straight-line continuation of the M3 from junction 8.
It is one of three (or arguably four) British motorways which negotiate a roundabout during their length, along with A627(M), A601(M) and arguably M58. Despite having four junctions, only one is numbered and grade-separated in favour of M271.
On pre-loaded VMS signs, Highways England refer to the southernmost section of the motorway as "J1-2". Assuming they are correctly referring to the Nursling Interchange as J1, this means that they want the roundabout at the southern end to be J2 and the first two roundabouts to be unnumbered.
- The M271 Motorway (Junction 1 to Redbridge Roundabout) (Fixed Speed Limits) Regulations 2021 - These Regulations introduce fixed speed limits on the M271 motorway in the vicinity of junction 1. The carriageway southbound from junction 1 (and part of the on-slip road joining it) is subject to a 50mph speed limit until it nears the end of the motorway when a 40mph speed limit then applies.