The 7 four-car trains used exclusively on the Scarborough line were developed by the Urban Transportation Development Corporation (UTDC), then an Ontario Crown corporation but later sold to Bombardier Transportation. The business proposal initially bore little fruit—a proposed pilot project in Hamilton was cancelled after meeting widespread public opposition, and the only other transit systems to use the technology, named the Intermediate Capacity Transit System (ICTS), at the time were Vancouver's SkyTrain and the People Mover in Detroit. After Bombardier took over UTDC, it redesigned the technology with newer, longer cars, used to expand the SkyTrain network and also for new installations across the world. ICTS was rebranded as "Advanced Rapid Transit" (ART) and became a success for the company. Later, the technology was again rebranded, this time as Bombardier Innovia Metro.