Upgrade
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. .
The junction is now a rather tight spaghetti style interchange, a variant of the partially unrolled cloverleaf design. There is also a plan to upgrade the junction at Newlands Cross to a grade-separated interchange and preliminary works (to divert a gas main) began in the Autumn of 2008.
Read more about this topic: Red Cow Interchange