If you are ever in downtown Calgary and want to experience the C-Train all travel between stations along 7th Avenue is free but this only applies to the trains. Buses along 7^th Avenue require regular fare, as does travelling by train outside of the free fare zone.

In addition to the extensions to the existing lines mentioned above there are currently plans for a new line, the Green Line. When completed this will run from 160th Avenue N along Centre Street to the downtown and then along the southeast to Seton in the southeast. The initial section will be from 16^th Avenue N, which is the Trans Canada Highway, to Shepard in the southeast.

There are currently two maintenance facilities on the network, Oliver Bowen Maintenance Facility (OBMF) located immediately south of McKnight – Westwinds station and Anderson Garage (AG), a joint bus / C-Train garage, in the southwest community of Anderson. There is also a storage facility near Heritage station called Haysboro, while cars are also stored along tail tracks located at the end of all lines just past the terminal stations. In the future there are plans for a new maintenance facility in the Shepard neighbourhood for the Green Line.

Before explaining each of the C-Train types it should be noted that Calgary Transit considers each two car articulated unit to be a single car. Each ‘half’ of a car is numbered with either an ‘A’ or a ‘B’ suffix, the difference between them being that those with an ‘A’ suffix are fitted with a pantograph.

The U2 are the oldest cars in the fleet with the first twenty-seven cars being delivered for the opening in 1981. These cars were built by Duewag in West Germany and are based on a design first built for use in Germany in 1968. The parts were shipped to Calgary with final assembly taking place at Anderson. The eighty-three cars built for Calgary had DC traction motors and were delivered in four orders between 1980 and 1984.

In 1989 two additional U2’s, both with AC traction motors were brought by the Alberta government from Duewag. Initially tested in Edmonton, numbered 3001 and 3002, they were later tested in Calgary before being purchased by Calgary Transit in 1990. Upon entering service in Calgary they initially retained their Edmonton Transit numbers being renumbered 2101 and 2102 in 1999. These were the only U2AC cars ever built and were incompatible with the U2DC fleet, instead operating as centre cars (known as belly cars by Calgary Transit) between two SD160’s. While rare it is possible for the U2DC’s to operate as centre cars with SD160’s but they could not operate with either the SD160NG or S200’s.

Over the years several cars were retired due to accidents and around 2011 the surviving ‘halves’ of two cars were joined together with the new car being numbered 2090.

With the arrival of new cars starting in 2016 the U2’s are being retired. A couple have been purchased privately while at least three were sold to Edmonton Transit as a source of spare parts for their U2 fleet. One of the U2AC cars has been converted into an overhead inspection car called ‘Scout’.