If you're going to Coliseum/OAKland Airport, take a Dublin/Pleasanton or Fremont train to go directly there. Transferring is too easy to get wrong. Hint: CDF.
They’ve closed down half the exits to cut back on the amount of space junkies have to shoot up. There are still dealers who hang out at the top of the stairs on the SW corner of Market/8th.
If escalators are not working, remember there are elevators! I feel bad seeing elderly people go up those flights of stairs, and it's too late to let then know.
BART...and you're there! Whether you're heading to work, meeting friends, catching a flight or catching a game, BART gets you around the San Francisco Bay Area.