Customers depend on Calgary Transit to get them to their destinations on time.  We do our best to minimize delays; however some circumstances are beyond our control, such as inclement weather, traffic and road conditions, police emergencies and medical emergencies.

Where we're at (CTrain)

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Why this graph only shows 2017 data: The systems providing CTrain reliability data were part of a pilot project. The pilot support was discontinued and Calgary Transit is currently working on a permanent replacement, pending funding.

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This graph shows the number of major CTrain delays (greater than 30 minutes) per month.

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CTrain delays of 30 minutes or more are caused either by internal or external factors. Examples of external factors include weather, a vehicle blocking the tracks, pedestrian or vehicle contact with trains, and passenger emergencies. Examples of internal factors include mechanical breakdowns and traction power and signal systems failures.

Where we're at (Bus)

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Bus reliability is measured by the percentage of buses departing major bus stops on time (-1 to +5 minutes). This is measured by Automatic Vehicle Locators, which are GPS systems on every bus.

Where we're at (Calgary Transit Access)

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The on-time performance for Calgary Transit Access is measured by the driver’s arrival time versus the scheduled pick up time, within a 20-minute pickup window. Learn more about Calgary Transit Access' on-time performance.

What we did in 2017

  • Added a module of our scheduling software to allow finer analysis of the on-time performance of individual routes and time points.
  • Began replacing 137 shuttle buses that were no longer meeting our reliability requirements.
  • Worked with bus operators to reduce instances of leaving stops early.
  • Retired seven U2s, which are the oldest and least reliable of our CTrain cars.
  • Implemented Scout, a specialized CTrain vehicle that inspects tracks and the overhead wiring for defects.
  • Tested a ‘pantograph collision detection’ system that will check for problems in real time to help prevent big problems before they happen.

What we’re working on in 2018

  • Implementing bus schedule changes by targeting routes with lower levels of reliability.
  • Completing the replacement of 137 shuttle buses.
  • Implementing Reliability-Centred Maintenance in transit fleet maintenance.
  • Improving our response to incidents through even-spacing of vehicles (i.e. work to restore an even spacing between buses after an incident).
  • Investing in new Transit Priority Infrastructure including signal priority, queue jumps and bus only lanes on 17th Avenue SE allowing improved speeds and reliability for customers.
  • Implementing the pantograph collision detection system on 10 vehicles to identify LRT power supply problems before they contribute to a significant event.
  • Developing ‘fault trees’ to help Controllers quickly troubleshoot mechanical problems and minimize the length of delays.
  • Retiring 39 of our oldest CTrain cars (U2s) to improve LRT reliability.