By Vince Gerasole, CBS Chicago 2; February 1, 2019
CHICAGO (CBS) — Metra users are used to alerts after a week full of weather-related schedule changes, but commuters will start hearing a new message that might cause some confusion, and has nothing to do with the weather.
Metra is implementing Positive Train Control, a computerized system designed to help prevent crashes, and hopes to have the $400 million system installed on all its rail lines by the end of next year.