Metro Silver Line Test Train Problem Under Investigation

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    NEWSLETTERS

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    Metro is trying to figure out why a Silver Line test train didn't perform properly and was eventually stopped by a derailer Tuesday near Wolf Trap, just east of the Wiehle-Reston East Station.

    Test trains have been running along the new Silver Line since late last year.

    This was the first problem of this sort.

    A derailer is the final fail-safe to stop a train.