Flashing amber lights are a familiar sign of the need to proceed with caution.
On the roads at junctions, near schools, at points for pedestrians to cross, in roadworks. On the back or top of vehicles, as warnings or indications of intended direction. At building sites, airports, stations.
What a shame we don’t have them at the junctions and intersections between human beings. Alerts to slow down, stop, be wary, proceed with caution.