I think you meant this bit: https://www.google.co.uk/maps/@51.683784,-1.9032482,3a,53.7y,171.83h,82.74t/data=!3m6!1e1!3m4!1sPZIiO_T5B21XgOoNjaEfGw!2e0!7i13312!8

I think you meant this bit: https://www.google.co.uk/maps/@51.683784,-1.9032482,3a,53.7y,171.83h,82.74t/data=!3m6!1e1!3m4!1sPZIiO_T5B21XgOoNjaEfGw!2e0!7i13312!8i6656 https://www.google.co.uk/maps/@51.683784,-1.9032482,3a,53.7y... It's got more of a wooden frame up and down the embankment, a Public Footpath sign and look right / look left warning paint. It looks like a poor compromise to retain an existing right of way when building or upgrading the dual carriageway.