What is the purpose of using variable message signs (VMS) in work zones?

The purpose of using variable message signs (VMS) in work zones is to provide real-time information about traffic conditions. These signs are crucial in communicating immediate updates to drivers regarding the status of the road, including changes in traffic flow, delays, or other important instructions that may affect their journey. By delivering timely notifications, VMS helps in managing driver behavior, reducing congestion, and enhancing safety for both motorists and construction personnel.

Variable message signs are specifically designed to adapt to changing conditions, allowing for clear communication that can be adjusted as circumstances evolve, such as unexpected roadwork or accidents. This feature distinguishes VMS from other signage methods that may carry static messages or advertisements, which do not prioritize the dynamic needs of traffic management in work zones.