Those signs mean you just need to stop, check the traffic, and if it’s clear, then you go ahead and turn right on that red light. Okay, great, but back to my original questions above.

Since the 1950s, all stop signs in the U.S. have been required to be red, as outlined in the Federal Highway Administration’s Manual on Uniform Traffic Control Devices (MUTCD).

D.C.'s ban on right turns on all red signals took effect with the new year, but the rule won’t be actively enforced at every intersection. The law, which first passed in late 2022 without Mayor ...