M275 motorway

The M275 is a 2-mile (3.2 km) long, dual three-lane motorway in Hampshire, southern England. It is the principal route for entering and leaving Portsmouth. It continues as the A3 into Portsmouth, and meets the M27 at its northern terminus. From the motorway, there are scenic views over Portsmouth harbour, and the Sails of the South between the two carriageways.

"M275" redirects here. For Mercedes-Benz engine, see Mercedes-Benz M275 engine.

M275
Route information
Length2.0 mi (3.2 km)
Existed1976–present
Major junctions
FromWymering
 
M27 motorway
ToPortsmouth
Road network

The M275 is one of few motorways in England which is not the responsibility of Highways England. It is managed by Portsmouth City Council from the point where the slip roads to the M27 end. The M275 was not built with a full hard shoulder. For its entire length, a narrow verge is maintained, although there is space available for a full width shoulder. Instead, drivers are warned on entry from the A3 and M27 of the lack of hard shoulder, with signs saying "no hard shoulder for 2 miles".

History
The M275 nearing Portsmouth

The motorway was opened throughout its entire length in 1976. A junction was originally planned for a new development in the Tipner area of Portsmouth, known as the Gateway Project,[1] which was shelved at the time. The junction's construction was abandoned primarily because planners realised that it would breach regulations that there must be a minimum of 1.25 miles (2.01 km) between motorway junctions. Before construction was halted, significant work had been carried out, including four incomplete slip roads with no road surfacing, two bridges above the site for the main roundabout, and realignment of Tipner Lane so that it served the roundabout. In 2001 the Sails of the South was unveiled close to the site of the missing junction. 2005 saw Portsmouth City Council carry out refurbishments to gantry mounted signs on approach to the M27 junction, new signage was stuck over old signage, and was significantly smaller and disproportionate to the previous layout. Incorrect lane illustrations, lack of adequate route information, and increased difficulty to read at a long distance lead to driver frustration and confusion.

In 2005, the Tipner Gateway Project was resurrected along with plans for a junction. As previously, preparatory works have been carried out for the junction. Due to the regulations regarding junction spacing, the speed limit on the main carriageway of the M275 has been reduced to 60 mph (97 km/h), and 50 mph (80 km/h) on the slip roads and from the southern end of Mile End Road to the Kingston Crescent Junction. The latter junction was to be renamed Junction 2, with the new Tipner Junction becoming Junction 1. Most of the road signs have been replaced and the M27/M275 interchange has been remodelled to make it easier for drivers, including splitting one lane into two, although this has meant that some of the overhead gantry signs are now redundant. Completion of the junction was achieved April 2014. The junction now leads to Tipner West. A large park and ride site for over 600 cars is alongside the junction.

Junctions
M275 motorway
Northbound exits Junction Southbound exits Coordinates
Southampton, Fareham M27(W)
Chichester, Brighton (A27), London (A3(M)) M27(E)		 Terminus
(M27 J12)		 Portsmouth (W), Ferries M275 50.83757°N 1.08293°W / 50.83757; -1.08293 (M275, Start of motorway (North))
Cosham A27 Start of motorway
Tipner (W), Park and Ride J1 Tipner (W), Park and Ride
Start of motorway Terminus
J2		 Cruise and Cross Channel Ferries, North End 50.80957°N 1.08670°W / 50.80957; -1.08670 (M275, Start of motorway (South))
Cross Channel Ferries, Hilsea
North End, Stamshaw A3 (A27)		 Road continues as A3 to Portsmouth (W), Isle of Wight Ferries and Naval Base
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See also

References
  1. Portsmouth City Council Page

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