Imagine trying to cross a busy intersection relying only on the sound of a tweet.

For many Airdronians who are visually impaired, the use of Audible Pedestrian Signals is crucial to make sure they know when to cross the road.

Only a few intersections in the city, however, actually use these sounds, which can make you wonder, how are they installed in the first place?

"Currently the City Of Airdrie's policy is if there's a client with the CNIB (Canadian National Institute for the Blind) that requests or requires them, then we would install them at that particular intersection", says Ken Velcic with the City of Airdrie's Engineering Services.

Velcic also says that the current policy has worked fine and doesn't see any changes in the future.

"That's how it's been working so far. I'm not aware of any changes to that policy to have them at all intersections."