Photo by Rolenz.

Following years of signal upgrades, testing, and the implementation of NTSB safety recommendations after the 2009 Metro crash that killed nine people, the Red Line will revert back to automatic train operation on Monday.

“The return of automatic train operation on the Red Line is a significant safety milestone for Metro,” Deputy General Manager Rob Troup said in a statement. “I want to thank our riders for their forbearance through years of work, often on weekends, to allow us the track access necessary to perform essential signal upgrades.”

But don’t worry—this doesn’t mean all Red Line trains will be operator-less. While operating in automatic mode, trains only accelerate, decelerate, and stop under computer control, which means no more jerky stops. There are still train operators in the cab of each train who are in charge of opening and closing doors, making announcements, and whatnot.

Beginning Monday, only eight-car trains on the Red Line will run in automatic mode, while six-car trains will still be driver-operated until a software upgrade is complete. WMATA says that the five other rail lines are undergoing “track-circuit module replacement projects” and will revert to automatic train operation at some point in late 2017, if all goes according to plan.