I speculate that the most special thing is that the guy has a camera on the bridge. We see everyone who hits this bridge. That combined with a pretty low bridge

I speculate that the most special thing is that the guy has a camera on the bridge. We see everyone who hits this bridge. That combined with a pretty low bridge (it was raised a few years back but it is still low enough to catch a lot of vehicles) and a culture of using phones to give us driving directions gives us this situation.