Wonderboom Junction, Exterior Sign SITE NUMBER : BB46-358 DESCRIPTION : Wonderboom Junction - Wonderboom, Pretoria North. EXTERIOR SIGN – On Traffic Circle. Main entrance/exit to the center on the traffic circle. Particular impact for traffic leaving the parking areas which drives straight into the sign! SIZE: 1.53m (h) x 5.03m (w) TRAFFIC : MONTHLY FOOTCOUNT 650 000 GPS CO-ORDINATES : 25°41'8.24"S 28°11'22.83"E