Plantier said while most of the message boards have predetermined messages, several are more advanced. One of their message boards, which sits along I-93 in Methuen, tells motorists how long it would take to get to Manchester.
“It uses a logarithmic equation,” Plantier said. “There are sensors along the highway and the sign will automatically update.”
Plantier said the plan is to keep adding more message boards.
“We have gotten good response,” he said. “We just activated a new board near the tolls in Hooksett. We’d like to add more where we know there is a lot of congestion.”
There are 45 message board throughout the state on I-93, I-95, I-89, Route 101, and the Spaulding and Everett Turnpikes.