Comment by dleslie
Comment by dleslie 5 days ago
> Why don’t lights ever sit idle with the pedestrian crossing on and the cars must wait?
The author knows the answer as well as most readers do: because the intersection is being designed with cars in mind, not human beings.
Usually a crossing will instantly switch when the pedestrian button is pressed, if enough time has passed since the last "walk" cycle. Having a stage where walk is enabled when there's no pedestrians around wouldn't much help pedestrians, and would introduce inefficiency in throughput. And obviously, drivers can't press a button, so it makes more sense for controls to be accessible to the pedestrians.