So, apparently, in 1938, Washington DC used two flags to announce the city’s progress in traffic safety: a white one was put up on Deathless Days and a black skull & cross bones when a traffic death was reported.
What might it do to help promote a safety culture if we give honor to victims and visibility to progress (or the lack thereof) in moving Towards Zero Crash Deaths & Serious Injuries.
— Council of DC (@councilofdc) March 31, 2016
Also, see this article: When D.C. Flew the Skull and Crossbones For Every Traffic Death
And, today, Traffic Safety/Deaths is not even an issue on whitehouse.gov. See for yourself.