He led a study in 2020 of how signs on highways can affect behavior. Shealy says signs that played with words or sought to be funny while still hitting a specific message made drivers think, and ...

States have two years to adjust to all of it -- but, basically, officials say signs that have unclear meanings, include references to pop culture or are intended to be funny should be phased out ...

Funny Texas highway signs will soon be banned under new federal rules. Here's why. Hannah Ortega Austin American-Statesman 0:00 ...