The Innovia APM 100 (formerly known as the CX-100) is an automated people mover (APM) rolling stock first developed by Westinghouse (later Adtranz, Bombardier Transportation and now Alstom), intended mainly for airport connections and light rail in towns. They are operated by Automatic Train Control (ATC), making it fully automatic and driverless.

The Innovia APM 100 is an evolution of Westinghouse's previous people mover vehicle, the C-100. Bombardier's intended successor to the Innovia APM 100 is the Innovia APM 200 (originally simply known as the Innovia), which made its debut on Dallas-Fort Worth International Airport's Skylink APM. However, the Innovia APM 100 continues to be offered by Bombardier and will remain in service at many airports for years to come. In addition to being used at many airports, the Innovia APM 100 is used on the Miami Metromover which runs throughout Downtown Miami, Florida, United States.

The Innovia 100 APM people mover vehicle is a modern version of the Westinghouse C-100 people mover first built by the Westinghouse Electric Corporation. Westinghouse developed the technology in the early 1960s. They built the Transit Expressway Revenue Line in Pittsburgh, Pennsylvania as a prototype to demonstrate their people mover technology in 1965.^[1] Westinghouse marketed the people mover system as an urban transit system and had hoped to build a fully-functioning system in Pittsburgh. However, political leaders held opposing views on the prospects of a rubber-tired mass transit system and plans to implement this system were rejected.^[2]

Despite this, Westinghouse would see success with their people mover system at airports. In 1966, they were contracted to build a people mover system for the new terminal at Tampa International Airport. This would be the first time an automated people mover system was used to transport passengers within an airport terminal. The Tampa airport system included eight first-generation Westinghouse C-100 vehicles when it opened in 1971.^[3] Two years later, Westinghouse completed its second airport people mover system, the Satellite Transit System, at Seattle-Tacoma International Airport.^[4]

In 1980, Westinghouse people mover systems were opened at Miami International Airport and Hartsfield Atlanta International Airport. The system in Atlanta (known today as The Plane Train), is one of the world's most heavily used people mover systems in the world. These systems used second generation C-100 vehicles, which has been the primary design of the vehicle ever since. The C-100 would be installed at more airports throughout the 1980s.^[5]

In 1986, the Westinghouse C-100 made its debut on its first urban people mover system, the Metromover in Miami, Florida.^[6]

In 1988, Westinghouse sold its transportation division to West German company AEG, which merged into a joint venture of ABB and Daimler Benz named Adtranz in 1996. Adtranz continued production on the C-100, which was marketed as the Adtranz C-100 and subsequently the Adtranz CX-100.^[7]

Adtranz was acquired by Bombardier in 2001, who then rebranded the vehicle as the Bombardier CX-100. Bombardier has since rebranded the CX-100 again to its current name, the Innovia APM 100, to bring all of their people mover models under the same branding.^[8]

While most of the earlier C-100s have been retired and replaced with Innovia APM 100s, London Stansted Airport still uses 5 C-100 vehicles on its Track Transit System.^[9] 4 C-100s are also preserved on display in museums: 2 vehicles from the Miami Metromover are preserved at the Gold Coast Railroad Museum and 2 from the Hartsfield-Jackson Atlanta International Airport system are preserved at the Southeastern Railway Museum.^[10]

A popular rolling stock for intra-terminal connection in large airports, it operates in a number of airports:

• System operation: Automatic train control (ATC) under automatic train operation (ATO) GoA level 4 (UTO)
  • CITYFLO 550 fixed block signalling
  • CITYFLO 650 moving block communications-based train control (CBTC)
• Gauge: 2,642-millimetre (8 ft 8 in) central guideway with rubber tyres
• Maximum speed: 55 kilometres per hour (34 mph) (Guangzhou Metro variation: 60 kilometres per hour (37 mph))
• Traction control: Thyristor drive powering two Bombardier 1460-P4 DC motors, each with a continuous rating of 75 kW (101 hp)
• Capacity: 105 (22 seating, 83 standing)
• Unladen weight: 15 tonnes (15 long tons; 17 short tons)
• Dimensions: 12.8 metres (41 ft 11+7⁄8 in) long, 2.8 metres (9 ft 2+1⁄4 in) wide, 3.4 metres (11 ft 1+7⁄8 in) high

• Bombardier Guided Light Transit
• Innovia APM – automated people mover systems
• Crystal Mover – a competing APM rolling stock by Mitsubishi Heavy Industries