alt Hacker NewsObviously a static sign is not aware of your current state, so it's message can only be interpreted as relevant to your likely state... i.e. the posted speed limit.
Obviously a static sign is not aware of your current state, so it's message can only be interpreted as relevant to your likely state... i.e. the posted speed limit.
If you should slow down relative to the posted speed limit why not change the speed limit to reflect that directly?