The initiative targets a section of highway where the crash rate is more than 2.5 times the state average, with nearly half of all incidents being rear-end collisions at lower speeds.
The existing technology for grade crossing warnings has largely remained unchanged since the 1960s, and includes flashing red lights, warning bells and gates.
Metra serves six counties in Northeast Illinois and extends to Kenosha, Wisconsin, connecting more suburban cities to downtown Chicago with 3,700 miles of tracks.