John Street Roundhouse, c. 2008
![Modern colour aerial photograph showing a roundhouse building and railway tracks. There is a highway at the top of the photo and many rail cars and small buildings around the roundhouse. There is a park to the left of the roundhouse.](https://www.communitystories.ca/v2/experiences-railway-workers-toronto_personnel-ferroviaire/wp-content/uploads/sites/162/2022/11/John-Street-Roundhouse-by-Wayne-Shaw-901.jpg)
Source: Wayne Shaw
Date: c. 2008
Roundhouses were built to allow turntables. The turntable is in the centre of the building and allows locomotives to be turned and driven into stalls for maintenance. This was preferable to reversing a locomotive, which is challenging.