A driving expert and theory test trainer has explained what a blue road sign with a rectangular shape on it means as people ...

The initial manual was primarily focused on road markings, black-on-yellow background warning signs and black-on-white background regulatory signs across the country.

A sign along I-65 in Alabama said "Reclaim America" and “Patriot Front US,” referencing the white supremacist group involved in the 2017 Charlottesville rally.