Widening the glen of the downs to facilitate a third lane for buses, is among a number of proposals on the cards for improvement works on the N11-M50.
A second phase of public consultation is underway on proposals for a major upgrade of the road between the m50/m11 merge and Coyne's Cross in Wicklow according to the Irish Times.
Since the Glen of the Downs was widened the number of cars has risen from 25-thousand a day in 1999 to 53-thousand last year - swelling to 78-thousand when it hits the Dublin border.
As part of plans a third lane has been proposed - running for 10 kilometres from the M50 merge to south of Kilmacanogue.
It would also see a redesign of junctions and the closure of a number of access roads
While there are also calls for an express bus lane to be added.