The N11 dual carriageway heading south out of Dublin has always been a key route into and out of the city serving the string of seaside towns stretching along the coast to Wexford at the bottom. (More information on this is on the general M11 page.) Progress is being made on converting southern parts of this to motorway and filling in gaps. In 2009, two disconnected dual carriageway sections were redesignated motorway: Jct 14-17 (Ashford-Rathnew) and 20-24 (Arklow-Gorey). The gap in between was completed in 2015. The part of the road between Bray (Jct 6) and Delgany (Jct 10), however, is very difficult to upgrade for many reasons: the lack of space, difficult geography, the density of development alongside the road, and environmental reasons. Dualling the Glen of the Downs was controversial enough back in the day.

This is one of two ideas that avoids most of these issues. The other one is here. (There is a separate page on widening the part northwest of Bray to 6 lanes.)

The plan is for a new offline route to the west, where there is vacant land. Getting over the ridge of hills to the west of the N11 seems to be possible at a location northwest of the town of Newtownmountkennedy. Tying the new route in at Fassroe at the northern end would be rather destructive however, with a need for a large new roundabout in order to join local roads, the new road, and the existing dual carriageway. These additional tie-in roads are marked in yellow in the map below.

Please give your opinion on this road proposal. Rate it out of 10, and whether you think the standard (road width) is appropriate.

Wikipedia page on this road