I doubt the Port of Portland Commission is reading this thread. You're going to have to do a little more work than that.

PDX is owned by the Port of Portland.

THE PORT OF PORTLAND
BOX 3529
PORTLAND, OR 97208

The Port Commission is appointed by the Governor and approved by the State Senate.

They also have a community outreach program and open meetings, but don't seem to have a citizens' advisory board, as in Austin.

PDX also has an International Air Service Committee. This is a group of business leaders who lobby airlines to support international flights to PDX - they may also be interested in factors that affect the desirability of PDX as a int'l transport hub.