In his old year cabaret show, Peter Pannekoek stated the buttons near crossings don’t actually do anything, they’re just there to just pacify people. I’m fairly certain they in fact do work, though for cyclists they’re mostly redundant: the magnetic loops in the road surface detect cyclists. Only for lightweight carbon bikes a manual button is still useful.
Am I correct in my assumption?
Depends where. Here, in the CBD a lot don’t do anything as there’s always a pedestrian walk cycle every time the lights cycle. Out of the CBD, they still work.
Mild frustration when you get to a light with people waiting and find no one pushed the button. Having to wait another cycle to get across.