Metro riders in the Silver Spring area can expect more delays on their commutes for the next several days.

The transit system announced Tuesday it needs to replace a communications cable used to transmit train speeds between control rooms at the Takoma, Brookland and Fort Totten stations.

“We have detected a condition that, left unaddressed, could affect the integrity of the signal system, and that is something that we take very seriously,” Joseph Leader, Metro’s chief operating officer, said in a statement. “Safety demands that the cable be taken out of service and replaced.”

To replace the cable, Metro plans to use a form of single-tracking between Brookland, Fort Totten and Takoma on Wednesday, Thursday and Friday, which is expected to cause congestion and delays.

Over the weekend, Metro plans to shut down the segment to speed up repairs. It will replace trains between Silver Spring and Rhode Island Avenue stations with shuttle buses.

Metro hopes to finish replacing the cable by Monday.

Metro also plans to reduce the time between trains on the Red Line between Shady Grove and Glenmont during rush hours to every 10 minutes, from every 8 minutes. The time differential at Red Line stations closer to Washington, D.C.—from Grosvenor-Strathmore to NoMa-Gallaudet University—is scheduled to be every 5 minutes instead of every 4 while the repairs take place.

The repair work is different from the interlocking replacement Metro did recently that shut down service between Silver Spring and Fort Totten for 10 weekdays.