The variable message sign is a useful media to alert motorway users when there are abrupt changes in traffic patterns, road conditions, emergencies or special events.

The application of VMS on the road can improve traffic flow while ensuring the safety of drivers and passengers. Variable message signs are ultra-bright and highly legible, with a variety of functions for many applications: lane closure, highway construction, work zone, parking lot guidance, and etc. A combination of different colors and sizes make these signs extremely efficient in conveying safety messages to the road users