A variable-message sign is a type of electronic sign used on roads to display changing information to drivers. These signs can show different messages, such as traffic alerts, weather conditions, road closures, or speed limits, depending on the current situation. Variable-message signs are commonly found on highways or in busy areas to quickly communicate important updates and help improve traffic flow and safety. They are designed to be easy to read and can be adjusted remotely by traffic control centers.

“variable-message sign”的英语定义和含义

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