True or False: Messages on Portable Changeable Message Signs (PCMS) should consist of no more than two phases, with each phase containing no more than three lines of text.

The statement that messages on Portable Changeable Message Signs (PCMS) should consist of no more than two phases, with each phase containing no more than three lines of text, is correct. This guideline is designed to ensure that messages are clear, concise, and easy to read for drivers as they approach the sign.

Using no more than two phases allows for the quick dissemination of important information without overwhelming the reader. Each phase being limited to three lines helps maintain visual clarity, ensuring that the message can be comprehended at a glance. This is crucial in a traffic management context where timely and accurate communication can enhance safety and reduce confusion among motorists.

This standard aligns with best practices in traffic signage, which prioritize brevity and clarity to facilitate quick understanding, especially in dynamic environments like roadways where drivers need to react swiftly to changing conditions.