Where exactly would that bike infra go? There's literally nowhere to put a bike lane on 90% of the "strodes" in my town which would actually benefit from one.
It's not just a political or environmental problem, it's purely a "where does this infra even go" situation.
I would have to see the stroads but I can fit bike infra on perhaps the most famous stroad of all, Avenue des Champs-Élysées, so I'm sure I could figure it out.
One thing people don't realize is many US lanes are twelve feet wide, which is much wider than needed for slower traffic (in fact, one of the best ways to slow traffic down is to narrow the lane). An 18-wheeler is 8.5 feet wide, so even a 10 foot lane offers excess room.
If a stroad is three lanes each way, and they're 12 feet each, that's 12 feet that can be recovered simply by reducing lane width, and that doesn't even involve any sidewalk rearrangements.
But bike infra doesn't have to even follow the car infra, you can put a nice bike lane setup one block over from the stroad (more properly the arterial or collector). Nobody really wants to bike next to a bunch of cars anyway.
