A gantry is a traffic sign assembly in which signs are mounted or railway signals are supported on an overhead support. They also often contain the apparatus for traffic monitoring systems and cameras
Modern Gantry with dot-matrix lane usage indicators, directional signage, a CCTV camera and traffic enforcement camera
Electronic toll collection verification of road tax payment by trucks on German controlled-access highways
Gantry in the United Kingdom, with access for maintenance
A variable- message sign or message board, often abbreviated VMS, VMB, CMS, or DMS, and in the UK known as a matrix sign, is an electronic traffic sign often used on roadways to give travelers informa
Gantry (transport)
…amounts of traffic mean that road signs at the side of the carriageway are frequently obscured by large goods vehicles. They may also consist of variable-message signs, and more recently Active Traffic Management, to close lanes due to accidents and for other reasons. They can also be used to specify temporary speed…
LED matrix sign over I-94 in Saint Paul, Minnesota, advising of a road blockage during a winter storm
Early style of VMS on the New Jersey Turnpike using neon tubes, since replaced by new LED VMS signs. It is next to a vane variable speed-limit sign
Europe's largest Dynamic Route Guidance System Nuremberg, Germany
LED sign over I-90 (Jane Addams Memorial Tollway) in Riley Township, Illinois, showing remaining travel times