Unless they're all linked wrong, there's surprisingly little Maximum Overdrive on here. I remember watching this at some holiday party on a big screen when I was a wee lad, and for at least 2 years if I saw a steamroller, in use or not, I'd run until I hit the next block.
It looked like the guy on the motorcycle fell the wrong way. Like, if the bridge is going up, wouldn't it dump him into the street rather than into the water?