Heathrow Interchange
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| Heathrow Interchange | |||
| Location Map ( geo) | |||
 | |||
| A taffic jam just before the junction. | |||
| |||
| Location | |||
| Heathrow Airport | |||
| County | |||
| Middlesex | |||
| Highway Authority | |||
| National Highways | |||
| Junction Type | |||
| Roundabout Interchange | |||
| Roads Joined | |||
| M4, M4 Airport Spur | |||
Heathrow Interchange (also known as Sipson Interchange) is junction 4 of the M4.
The roundabout under the M4 mainline is under motorway regulations. In the late 1990s proposals existed for a direct link to the M4 southbound spur in order to relieve traffic congestion at the junction.
Routes
| Route | To | Notes |
| The WEST, Gatwick Airport, Heathrow Airport (Terminal 5) | ||
| Central London, Hammersmith, Hayes, Heathrow Airport (Terminal 4 & Cargo) | ||
| Uxbridge (A408) | spur to Cherry Lane Roundabout | |
| Heathrow Airport (Terminals 1, 2 & 3) | spur to Concord Roundabout (junction 4A) |
Links
