Why 14?
One in Ottawa/Gatineau for the Federal Government. It mostly exists already in the form of the Federal Gigapop.
http://www.gigafed.net/
There are 10 provinces. Ontario already has Torix at 151 Front Street. Quebec already has CANIX-1 at 625 Rene Levesque.
http://www.cybera.ca/projects/alberta-internet-exchange