What is the maximum display time for a message divided into two phases on a PCMS?

The maximum display time for a message divided into two phases on a Portable Changeable Message Sign (PCMS) is indeed 8 seconds. This time frame is important for ensuring that drivers have sufficient time to read and comprehend the information being presented without causing confusion or creating distractions. Messages displayed for longer durations may lead to driver impatience or inattentiveness.

In the context of traffic management, messages are often simple and straightforward since complex messages can detract from their effectiveness. By limiting the display time to 8 seconds for two-phase messages, it allows for clear communication while still maintaining a logical flow of traffic. Understanding this practice helps ensure that traffic management systems function efficiently and safely.