Red Cow Interchange - Original Configuration

Original Configuration

Opened in 1990 as part of the M50 Western Parkway project, the junction was originally a grade separated interchange from the point of view of M50 travellers, however for N7 motorists it was a signal-controlled roundabout with negotiation of traffic lights required for all movements. From 1994 onwards the roundabout became the terminus of the N7 road following the decision to detrunk the road inside the M50 (becoming the R110 road).

The nickname Mad Cow roundabout was commonly used to refer to the junction, referring to the slang term given to cattle suffering from the brain disease BSE. The actual name of the roundabout referred to the "Red Cow Inn", a landmark pub formerly in the vicinity; there is now a hotel in the area also bearing the name Red Cow.