Mapping of Alberta Health geographic structures, corridors to constituent councils NW: #1, #3, #4 NE: #2 Edmonton: #6, #7, #8, #9 Central: #10 Calgary: #11, #12 SW: #13 SE: #14 Average size of a "corridor" is 2 councils. Four corridors are coincident with a single council. Other three corridors are 2, 3, and 4 councils large. These geographic structures presumably are replicated in at least 7 functional structures.... 1/2