When a message on a PCMS is divided into two phases, what is the minimum display time for each phase?

The minimum display time for each phase when a message on a Portable Changeable Message Sign (PCMS) is divided into two phases is 2 seconds. This duration ensures that drivers have sufficient time to read and comprehend the message displayed.

Messages being shown on PCMSs are crucial for providing clear and timely information to motorists, especially in areas under construction or where traffic patterns are altered. If the display time is too short, there is a risk that drivers may not fully process the information, which could compromise safety and compliance with traffic regulations.

Setting the minimum display time at 2 seconds strikes a balance between conveying necessary information effectively and allowing for the smooth flow of traffic. It mitigates confusion by providing drivers a brief but adequate window to absorb the changes or instructions being presented.