Has a four-vehicle crash closed the Jones Falls Expressway? Did a light rail train jump the tracks? Are hundreds of passengers stranded on a MARC train?

You can find out fast by receiving text message alerts from The Baltimore Sun's Breaking News Desk. Just click here to sign up to receive traffic alerts and other news as it happens. These are not routine announcements or advisories about everyday congestion but the type of major developments that can help commuters get to home or work faster.

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