Lane blocked after collision on A1 The A1 at the Metrocentre. Pic: Google. Sign Up To Our Daily Newsletter Sign up 0 Have your say A crash on the A1 near the Metrocentre has left one lane blocked. The collision, on the southbound carriageway, happened adjacent to junction 71.Lane 2 is blocked, with tailbacks to Junction 74 at Scotswood. Geordie Shore's Vicky Pattison says filming break-up programme was 'therapeutic'