Venice Traffic Lights.

You know, I hadn't thought about this before. Are there traffic lights on the canals of Venice.

As this slide shows, the answer is yes. But, is it a practical solution?

It takes a lot of energy to accelerate a boat up to a speed, and Italian drivers usually love speed. So, I suspect that the traffic lights are ignored, and serve only as a distraction for tourists.

Thoughts?

Bonus -