Wheelbarrow01: there will still be a bottleneck at peak times to get on or off it - it will really just shift the problem from Belfast to Cranford St.
I agree, and quite frankly I'm a bit gobsmacked they haven't taken the opportunity of the quakes to just ramrod some new motorway/expressways in.
4 Lane Marshland all the way up to to the existing motorway, change Hills/Briggs into a 4 lane expressway all the way from Fitzgerald/Bealy through to Marshlands/QE2, with interchanges at Warrington/Shirley and Briggs/Marshlands,so you have an eastern motorway feeding traffic from the north into the CBD and via 74 all the way around.
Extend the planned Northern Arterial planned for the east of Belfast all the way down through Cranford/Sherborne to Bealey Ave (as an expressway, Say interchanges at Innes and Warrington)
Maybe even make the 4 aves a proper ring road, only allow the major roads to connect to it, minimize the number of non major intersections. Like along Moorhouse get rid of Selwyn St, Waller Terrace, Stewart St, St David St and possibly even Antigua St. Ideally you'd do it on both side of the road but with the location of the railway lines it would make access to some places pretty problematic.
You get the idea. Just bulldoze bulldoze bulldoze and build big roads. There is never going to be a better chance to get motorway access into the heart of Christchurch than during the rebuild I reckon.

