It is pretty well known that there is a critical shortage of ice time, though the three sheets that just opened at COP, the one or two added at Centennial and the second sheet opened a few years ago at Max Bell help. I suspect that if you looked at recent arena construction and compared it to the city's growth patterns, you would find that the city has not remotely kept up out in the burbs.
Also, and surprisingly, stories like
this aren't common on a Google news search for the city.
Of note, I believe the last spectator arena built in this city was the Saddledome, though a 3,000 seat rink will open as the fourth sheet at COP in the near future.
Story on COP
You could expand to cover the greater Calgary area. For instance, Airdrie has only three indoor sheets, and the Plainsman arena is damn freaking old. The Twin Arenas were built over 10 years ago, and the city's population has doubled in that time.
Make sure you post your story when it is done. I'd be interested to read it.