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In page Variable-message sign:
"VMS's were deployed at least as early as the 1950s on the New Jersey Turnpike.[1] The NJ Turnpike's signs of that period, and up to around 2012, were capable of displaying a few messages in neon, all oriented around warning drivers to slow down: "REDUCE SPEED", followed by a warning of either construction, accident, congestion, ice, snow, or fog at a certain distance ahead.[2] The New Jersey Turnpike Authority replaced those signs (along with 1990s-vintage dot-matrix VMS's along the Garden State Parkway) with more flexible electronic signs between 2010 and 2016.
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