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Red Cow interchange

Red Cow interchange
Location
Dublin, Ireland
Coordinates: 53°19′05″N 6°22′05″W / 53.318°N 6.368°W / 53.318; -6.368Coordinates: 53°19′05″N 6°22′05″W / 53.318°N 6.368°W / 53.318; -6.368
Roads at
junction:
M50
N7
Construction
Opened: 1990 (1990)

The Red Cow interchange is a major road junction in west Dublin, Ireland on the M50, meeting the N7 Naas Road (to Cork and Limerick) at a free-flow grade separated junction which incorporates a light railway line. The N7 route commences at this junction, junction 1 on the N7 and junction 9 on the M50, and the Naas Road from the city centre via Inchicore to the Red Cow interchange comprises part of the R110 and the R810. The junction is the busiest road junction in Ireland. Before a recent upgrade it frequently had tailbacks several kilometres long on the routes leading to it.

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.

The junction was upgraded as part of works on the M50 motorway. Congestion was alleviated by providing a third level of grade-separation, allowing Dublin–Cork/Limerick traffic to travel from the M50 to the N7 without having to navigate a roundabout. The junction upgrade was substantially complete by December 2008, with only minor finishing works outstanding. A similar upgrade of the N4/M50 interchange was completed on 20 December 2007. [1].


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