Before revision: Afterwards it was installed: on the Santiago Metro in Santiago, Chile; on some of the MTR lines in Hong Kong ( Urban Lines , Airport Express and Tung Chung line), all enhanced with ATO, on Lines A, B and 8 of the Mexico City Metro lines in Mexico City; and on Shanghai Metro Line 3.
After revision: Afterwards it was installed: on the Santiago Metro in Santiago, Chile; on some of the MTR lines in Hong Kong ( Kwun Tong line, Tsuen Wan line, Island line, Tseung Kwan O line , Airport Express and Tung Chung line), all enhanced with ATO, on Lines A, B and 8 of the Mexico City Metro lines in Mexico City; and on Shanghai Metro Line 3.