Trouble is, the Condo Commandos have taken over the waterfront, and now that they're there, they don't want no !#%$$#@ buzzy little airplanes running around in the picture windows of their $300,000 Homes in the Sky. That means that if the subject of building the bridge they've been charging ferry tolls for (CAN$30 round trip, unless you work there!) comes up, dozens of people will stand around in the area chanting the CC's Magic Mantra: Don't Hurt Property Values.
Happens all over. People build right up to the fence, then [the horror! the horror!] discover that there are airplanes coming by! Right over their house! The city council Must Do Something!
If I were an airport manager, I'd hire a series of people, probably college students, and give them a little pickup and a supply of signs. Whenever they found a surveyor's stake, a hole not dug by an animal, or a stone lying on a stone within the airport's operating area, they would put up a sign reading:
Airplanes make noise
Airplanes sometimes crash
Talk to your RealtorTM about Airplanes Nearby!
If they then returned and found that the sign had been taken down, they would call the airport, which would respond with a construction truck and crew. That crew would erect an identical sign, twelve feet high, made of steel and set in concrete.
Sheesh. I feel better now :-)