Aircraft Operations at YYC
NOTICE: Scheduled Runway Maintenance – September 2016
Please be aware that regular scheduled maintenance will occur on the YYC runways during specific days in September. Please anticipate some changes in traffic patterns during these periods. Additional information can be found here.
March 13, 2015
Record of Decision
Following a 45-day review period of posted YYC Airport Community Consultative Committee (ACCC) meeting materials, approval of proposed operational changes by the ACCC and the public through data collected from an online survey, the following will be implemented to airport operations effective April 30, 2015
1. An exemption has been granted by Transport Canada for aircraft procedures to change from a 15 degree to a 10 degree divergence(turn) when departing off the new runway 17L. This change will be published in the Canada Air Pilot (CAP), distributed by NAV CANADA, in the April 2015 publication. Initiation of the new procedure will be implemented on April 30, 2015.
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ABOUT AIRCRAFT OPERATIONS
The Calgary Airport Authority is focused on the continued development of YYC as a major economic generator, while being a good member of the community. What does that mean? We are part of the community, and we work in consultation with community associations, government agencies and airlines to ensure we are a good neighbour. In keeping with that objective, we will continue to actively monitor flight operations to ensure that aircraft are complying with noise abatement procedures. Additionally, we have been visiting surrounding communities over the last several years to discuss the impact of operations of new runway 17L-35R. If you have questions about aircraft arrival and departure procedures or aircraft activity, we can find the answers.
SOME BACKGROUND ON AIRCRAFT ACTIVITY AT YYC
What determines the use of runways at YYC? Our partner, NAV CANADA, manages the airspace and the runway utilization is based on numerous factors:
- Safety is the over-arching consideration in the design and operation of the airspace and airport system at YYC
- Aircraft need to land and depart into the prevailing wind;
- Operating conditions (runway length, aircraft type, volume of air traffic, etc.);
- Airport construction and maintenance activities; anD
- Preferential runway use (day/night-time operations).
In general, the operational procedures for arriving and departing aircraft are as follows:
- The north-south runways will remain the preferential use runways for arrivals and departures;
- NAV CANADA will generally arrive and depart aircraft from the west (e.g. Vancouver) on the west parallel (17R-35L) and arrive and depart aircraft from the east (e.g. Toronto) on the east parallel (17L-35R); and
- Night-time procedures to minimize aircraft activity over the city remain in effect.
WHY DOES AIRCRAFT NOISE VARY?
- Manufacturing of the aircraft. Different aircraft will have different noise profiles; however, all aircraft that operate in Canada must meet strict noise standards enforced by Transport Canada as part of the aircraft certification process;
- Atmospheric conditions like humidity, wind and cloud ceiling height can affect a perceived difference in noise levels. These factors will vary by season;
- Weight of the aircraft;
- Operation of the aircraft (departures vs. arrivals, thrust settings); anD
- Altitude at which the aircraft is operating.
HOW WILL AIRCRAFT ARRIVE AND DEPART YYC?
Now that the new parallel runway is open, operational procedures will be as follows:
- All of the existing runways will continue to be used.
- The new runway is used for both arrivals and departures.
- Aircraft will generally arrive and depart to and from the west (e.g. Vancouver) on the west parallel (17R-35L) and arrive and depart to and from the east (e.g. Toronto) on the east parallel (17L-35R).
- The preferred runway for departures will generally be 35R and L. However when the winds require, aircraft will arrive from the north and depart to the south.
In parallel runway operation: