Metro’s next round of SafeTrack “surge” work begins Monday and it’s expected to have a major impact on Arlington commuters.

Surge #11 is scheduled from Nov. 28 to Dec. 21. The 24-day project will involve track work and single-tracking between the West Falls Church and East Falls Church stations, on the Orange and Silver lines.

The first 14 days of the work are expected to be especially disruptive as Metro will be unable to run additional trains to make up for the reduction in service. That’s due to the location of the track work and Metro’s rail signaling service, officials said.

“There will be a severe reduction in train service,” said Joe Leader, Metro’s Chief Operating Officer. “The first two weeks of this surge will be the worst of anything our riders have experienced so far since we started Safetrack.”

Riders should expect “very crowded trains and platforms.” Trains running through Arlington may be so crowded that riders will be unable to board during rush hour.

Additional ART buses and Metrobus shuttles will run along Arlington’s Rosslyn-Ballston corridor to help provide additional capacity during the surge. Arlington County is also encouraging commuters to telecommute during the project.

Ultimately, the track work is expected to result in a smoother ride and more reliable service along the Orange and Silver lines.

“It’s going to be intense for the first two weeks,” said Arlington County Board Chair Libby Garvey, during a press conference at the West Falls Church Metro station. “It’s short term pain for a lot of gain and it’s something that we’ve got to do.”