Signalex (Mississauga, Ont.) engineered and fabricated the aluminum extrusion systems for station advertising units as part of a 12-year transit advertising program for the Toronto Transit System. The systems were engineered by Active Designers/Al Sandid with design intent by Kramer Design Associates. Pattison Outdoor LP will provide transit advertising that will reach 1.5 million commuters daily. Signalex created extrusion systems that are less than 2-in. deep and lit by CSA-approved LED panels fabricated in house. The units house posters on station platforms.