N1 Highway, Centurion, Gauteng (A) SITE NUMBER : BB112-06 DESCRIPTION : Travelling in a South Westerly direction on the N1 towards John Vorster turnoff, Midrand and JHB. In close proximity to Jean avenue bridge, over the N1 Highway. SIZE: 4.5m x 18m TRAFFIC : 449323/0/4028000 GPS CO-ORDINATES : -25.861981, 28.209633