Analysis of information sources in references of the Wikipedia article "Silver Line (Washington Metro)" in English language version.
Construction of the five Metro stations was recently completed and developers are working on software testing. The system will go under 90 days of testing and staff training.
As several commenters mentioned, the thick lines take up a lot of room and, with the Silver Line [and Brown Line], we'd have six lines going through L'Enfant. Metro can alleviate this by thinning out the colors, but that's still a lot.
"The change to the shutdown schedule, which begins Memorial Day and lasts through LaborDay, means there will be no Silver Line service."