first-served basis. Reservations are required on all trains, tickets may be purchased online, from an agent at some stations, a ticketing machine at most stations, or, at a higher cost, from the conductor on the train. Between New York City and Albany–Rensselaer, trains are pulled by a GE Genesis P32AC-DM dual-mode diesel locomotive at speeds up to . The locomotives operate on third rail electric power in Penn Station and the Empire Connection tunnel and on diesel power for the rest of the route. Between Albany–Rensselaer and Montréal traditional diesel-only GE Genesis locomotives are used. The Adirondack debuted in 1974 with D&H equipment, much of it ex-Laurentian, as Amtrak was experiencing equipment shortages. These were supplemented by a pair of Skyline dome cars leased from the Canadian Pacific Railway. Two D&H ALCO PA diesel locomotives hauled each train. On March 1, 1977, new Turboliner gas turbine trainsets took over from the D&H cars. Conventional Amtrak equipment would eventually displace the Turboliners. In the coming years all equipment will be replaced with Amtrak Airo trainsets, the railroad's branding of its combination of Siemens Venture passenger cars and a Siemens Charger diesel-electric locomotive. The trainsets for the Adirondack will have six passenger cars, which will include a cab control car food service area and a mix of 2x2 Coach Class and 2x1 Business Class seating. The car closest to the locomotive will have batteries to supply electricity to traction motors in the locomotive when operating in Penn Station and the Empire Connection tunnel, eliminating the need for third rail propulsion. The arrangement will eliminate the time-consuming locomotive change Albany–Rensselaer. Route The Adirondack operates over Canadian National Railway, Canadian Pacific Railway, CSX Transportation, Metro-North Railroad and Amtrak rails: CN St-Hyacinthe Subdivision, Montreal to Southwark: CN Rouses Point Subdivision, Southwark to Rouses Point: CP Canadian Subdivision, Rouses Point to Ballston: CP Freight Subdivision, Ballston to Schenectady: CSX Hudson Subdivision, Schenectady to Poughkeepsie (trackage leased by Amtrak): Metro-North Hudson Line, Poughkeepsie to Spuyten Duyvil: Amtrak Empire Connection, Spuyten Duyvil to Penn Station Unlike the Maple Leaf, which is operated by Via Rail crews while in Canada, the Adirondack (like Cascades trains to Vancouver) is operated solely by Amtrak personnel. Station stops References Notes External links Amtrak routes Named passenger trains of Canada International named passenger trains Railway services introduced in 1974 Passenger rail transport in Quebec Passenger rail transportation in New York (state)