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TheA55 road formsBelfast's outer-ring road.

A55 links many of the main arterial routes within the city as well as creating a bypass of the often congested city centre and problematicA12 Westlink. Large sections of the route in east Belfast have been upgraded to dual carriageway standard with at-grade traffic light controlled junctions, together with off-road cycle paths alongside. However many sections (e.g. throughKnock and from the Shaw's Bridge (Belvoir) to theM1) remain single carriageway, with four lanes of traffic. (Though the section through Knock has a proposed upgrade going through the final designs stages as of January 2009.) Despite this, all of the route in the west and north of the city (with the notable exception of the Monagh Bypass nearAndersonstown) is nothing more than a single carriageway two-lane road based on local city streets and arterial routes.

The A55 crosses theRiver Lagan at Lagan Valley Regional Park, where theMalone Road becomes the Milltown Road. The single-span, 70m-long arched concrete bridge runs parallel to the more historic Shaw's Bridge, which it replaced in 1977.^[1]

The lack of investment directed towards an upgrade for these sections of the city's ring road can be explained by a lack of demand, relatively lower traffic levels and few industrial sites in comparison to those of the south and east. However, in an attempt to attract inwards investment into the area the West Belfast & Greater Shankill Task Force has laid out a plan (publicised in late 2008) which proposes to extend and improve the route; extending from the Monagh Bypass as far north as theA52Crumlin Road in the northwest of the city.

54°34′04″N5°53′56″W / 54.56784°N 5.89886°W /54.56784; -5.89886

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