Class A Low Bridge Accident

I remember seeing this bridge or another like it om 60 minutes. I worked in a building that had a second story above a road way. They placed hanging chains before you could enter it to rake the top of the vehicle as it passed. We still had a coke truck ignore the warning and hit it.

We with the gee wizz electronic stuff today you would think the could rig a height device wired to a stop light that would detect a over height vehicle and trigger the stop light before the bridge. Would not turn green until you backed up and turned around.