Junctions
Data from driver location signs are used to provide distance and carriageway identifier information. Where a junction spans several hundred metres and start and end points are available, both are cited.
| M27 motorway | ||||
| km | Westbound exits (B Carriageway) | Junction | Eastbound exits (A Carriageway) | Coordinates |
| 0.0 2.0 |
Road continues as A31 to Bournemouth, Ringwood and Poole | J1 | Cadnam A336, Brook, Bramshaw B3079, Lyndhurst A337 |
|
| The New Forest, Cadnam, Lyndhurst A337 |
Start of motorway | |||
| 6.8 7.4 |
Salisbury A36, Fawley A326 | J2 | Salisbury, Romsey A36, Fawley A326 | |
| 10.6 11.0 |
Southampton, The Docks, Romsey M271 | J3 | Southampton, The Docks M271 | |
| Rownhams Services | Services | Rownhams Services | ||
| 15.2 15.7 |
The Midlands, London, Winchester M3 | J4 | The Midlands, London, Winchester M3 | |
| 18.9 19.2 |
Southampton Airport, Eastleigh, Southampton A335 | J5 | Southampton Airport, Eastleigh, Southampton A335 | |
| No connection | J6 | Planned junction for the M273, but not built | ||
| 24.9 25.2 |
Hedge End A334 | J7 | Hedge End, Botley A334 | |
| 26.0 27.4 |
Southampton, Hamble-le-Rice, East Docks A3024 | J8 | Southampton (East), Hamble-le-Rice A3024 | |
| 32.1 33.1 |
Fareham (West) A27, Whiteley | J9 | Fareham West A27, Whiteley | |
| 37.4 37.8 |
Alton A32 | J10 | No exit | |
| 39.2 39.8 |
Fareham Central A27, Gosport (A32) | J11 | Fareham Central A27, Gosport (A32) | |
| 44.6 45.2 |
Access from M275 only | J12 | Cosham, Paulsgrove, Hilsea A27 | |
| 46.6 | Portsmouth, Ferries M275 | M275 Terminus A27 |
Portsmouth (West), Ferries M275 | |
| Start of motorway | Road continues as A27 to Havant, Portsmouth (East), Brighton and London (A3(M)) | |||
Information above gathered from Advanced Direction Signs April 2011
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