“I thought civil engineers thought of things like this”
Yeah,, You’d think a VERY basic test on a new traffic signal would be how behaves in hot, cold, wet, and arid,,, night, and day. But i mean,, im no engineer,,,,lol.
Testing is much less rigid if one merely slaps a “green” label on something.
Heck, I would be surprised if this idea was tested at all!