Abstract: An air bearing transport apparatus has a support structure coupled to a plurality of traction units. The traction units are tracks that are rotationally coupled to the support structure and independently steerable. Each traction unit is coupled to the support structure by a linear actuator that acts as a normal force applicator to prevent slippage. A plurality of thrusters in a lower portion of the support structure provides a gas flow substantially perpendicular to a support surface of the support structure to provide an upward force on the support structure. The air bearing transport apparatus may be used with a portable modular surface comprising interlocking tiles.