|Location Map ( geo)|
|Distance:||9.6 miles (15.4 km)|
|Meets:||A27, A23, B2122, A2010, B2185, A2023, A2038, B2194, A293, B2167, A27|
|Route outline (key)|
The A270 is the former route of the A27 through Brighton and Hove, dating back to the construction of the bypass in the 1990s. The road's exact route has changed several times as various one-way systems have been constructed in Brighton.
It starts near the University of Sussex (at Falmer) as a slip road off the A27 going down to Coldean Lane. It's urban dual carriageway for a bit then becomes normal urban road full of buses heading south into Brighton called Lewes Road. The dual carriageway along here has a dedicated cycle lane with bus stop bypasses as well as a dedicated bus lane leaving just 1 lane for all other traffic. It used to turn right into Upper Lewes Road (at the Vogue Gyratory) until the early 2000s when the council made that road a one way street, Vogue Gyratory was redesigned in 2016 to reduce lanes and provide bicycle lanes.
The road now carries on into town and does things an A road really shouldn't, turning right into a small road and across a set of traffic lights into Cheapside, a tiny road that used to be (quite rightly!) unclassified. It then turns right again into New England Street, before turning left to rejoin the old A27 and become sensible again! Somewhere in all of this it crossed the A23.
It climbs a steep hill from under an ancient railway bridge (which as recently as the 1980s had a sign under it warning you that "British Railways are not responsible for damage caused by falling masonry from this bridge"), goes through Brighton and Hove and becomes a proper urban dual carriageway after crossing the A2023 in Hove. It then fluctuates between D2 and S4 before a huge roundabout just past Southwick provides access back onto the new A27. Although it was reduced to a D1 with cycle lanes for some of its distance between May 2020 and September 2021 as an active travel measure.
The A270 is mostly a non-primary route, however before the bypass was built it was a primary route as it was the A27. Nowadays signage is inconsistent (along with every sign in Brighton and Hove) and there is the occasional sign on the A270 which is in primary route colours. There is a higher concentration of these primary route signs on the diversion route of the Southwick Hill Tunnel, this may be done for traffic that would otherwise be following the primary route of the A27, including route confirmation signs, however in a request to Brighton and Hove City Council no permission to use these signs had been approved. The one section that the local council have stated it a primary route on the A270 is the slip roads to/from the A27, including the Flyover. However it is stated that it is in review, especially extending the primary route status from the A27 junction to Coldean Lane, another ⅓ mile further west. Despite this when the flyover was built in 2010, the signage for the flyover was changed from primary to non-primary.