Grayston Dr, Sandton SITE NUMBER : BB91-12 DESCRIPTION : Site is located on Grayston Dr near Wynberg (visible from M1 Highway-Ben Schoeman/De Villiers Graaff) heading towards Sandton CBD. SIZE: 4m x 50m TRAFFIC : 7 021 971 impacts p/m GPS CO-ORDINATES : -26.107616, 28.075889