Why are some highway ramps closed around Hartford?

Why are some highway ramps closed around Hartford?

HARTFORD, Conn. (WTNH) -- Drivers in central Connecticut may need to get on the highway at a different spot than usual next week as the Connecticut Department of Transportation (CTDOT) shuts down some ramps for wrong-way detection system inspections.  Sixteen times in the last week, a driver in Connecticut has attempted to enter the highway in the wrong direction, according to CTDOT. "This is happening at an incredibly alarming frequency,” said …