Clark, with Joint Venture Partner Gilford Corporation, assisted Baltimore/Washington International (BWI) Thurgood Marshall Airport with their goal of increasing car capacity. The 3,000,000-square-foot, cast-in-place, post-tensioned parking garage contains 8,400 parking spaces. The garage also features a “Smart Park” system. This automated parking guidance system uses ultrasonic sensors and lighted, electronic wayfinding signs to ease parking congestion.