LOCAL

Keeping the Blue Line on track

As Los Angeles officials build new mass transit at a rapid clip, the city's oldest and most-used light rail system is breaking down with alarming frequency. The Blue Line from Long Beach to downtown L.A.--handling 26 million riders a year as one of the nation's busiest light-rail lines--has been plagued by maintenance problems that have left commuters who rely on the service facing major delays.
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