It's pretty standard for fire departments across the continent to oppose infrastructure that inhibits cars.

They drive the largest vehicles that need to fit down every street and make every turn, so from their perspective, streets can't be too narrow, turns can't be too tight, and anything that might obstruct their ability to drive wherever they need to is dangerous and cannot be permitted.

Jason Slaughter made quite a good video on the topic of fire departments and their influence over urban development. The tldw is pretty much the same as pick up truck die hards. Ignorance of other options, and insistence on their way being the only way.

So parked cars affect firetrucks or do they jump out of the way?

Someone quick, show Mamdani that Not Just Bikes video on fire departments. Best response to the emergency responder argument against bike infrastructure IMO.

Or bike lanes wide enough to fit firetrucks?