N3, between Marlboro & Buccleuch off-ramps SITE NUMBER : BB44-15 DESCRIPTION : N3 Highway between Buccleuch and Marlboro off-ramps .Facing traffic travelling along the N3 North & South. This is highway is en-route to OR Tambo airport and extremely busy SIZE: 5m x 56m TRAFFIC : 95 000 vehicles per day GPS CO-ORDINATES : -26.060685, 28.107073