Gantry (road sign)

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A gantry on the Acosta Bridge in Jacksonville, Florida
A gantry on the Acosta Bridge in Jacksonville, Florida

A gantry is a traffic sign assembly in which signs are mounted on an overhead support. Gantries are usually built on high-traffic roads or routes with several lanes, where signs posted on the side of the highway would be hard to see for drivers.

Gantries may be cantilevered or one sided, or they may be bridges with two sides.

Similar gantries are used in railway signalling on multi-track lines near busy stations.

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