The Gardai have issued the following traffic advice:

All parents / taxis wishing to pick up from the OXEGEN Concert in Punchestown must use the Park & Ride facilities in Goffs (Junction 8 N7).

This also applied to Taxi drivers. The shuttle service from Goff's to Punchestown (return service) is running on a 24hr basis and is free.  
 
All junctions around the site are solely for exiting of traffic only and no vehicles will be allowed into the area for pick ups.