

I can’t imagine riding in a cable car lane. I’d be terrified of my tires getting stuck in the recessed tracks. Plus there are plenty of videos of cable cars mowing down drivers who were in their lane, with absolutely zero fucks given. At least the drivers have a cage.
It’s a fire box. You can actually see a pretty good shot of another one in the first frame of the video. They’re basically public fire alarms with a pull lever, just like you’d find in buildings. When you pull the lever, it automatically alerts the fire department. They pass several throughout the video; Boston is full of them.