When will our BART nightmare end? Less than a day after a BART train's deteriorating wheel left thousands stranded, and mere hours after BART got stuck in the Transbay Tube, the transit agency has announced that a mechanical problem is delaying passengers yet again.

According to a BART dispatcher, mechanical problems are disrupting travel for riders headed from Daly City towards San Francisco and the East Bay.

"There is a major delay at Daly City in the Pittsburg / Bay Point, Fremont and East Bay directions due to an equipment problem on the track," BART said in an alert to riders and media at 2:10 p.m.

"A routing issue" at Daly City Station is responsible, the dispatcher says, adding that trains should be moving again shortly, and are expected to be back on schedule later today. We'll believe it when we see it.