 Unlike other regular racing tracks in the world, the layout of the Guia Circuit has not been modified since its first event in 1954 (the pit and paddock complex has been relocated to the present location since 1993, but the layout of the circuit has not been changed).The narrowest part of the track has a width of merely , which is located at the Melco Hairpin.The whole length of the circuit is safely bounded by Armco barriers painted in black and yellow stripes.