BART published a study a few years ago saying the tracks need to be closed 4 hours every night. They said since people riding early in the morning are more like

BART published a study a few years ago saying the tracks need to be closed 4 hours every night. They said since people riding early in the morning are more likely to be people of color than those riding late at night, that shifting service times later would be "racist" because it would have a disproportionate effect on people of color. Typical 21st-century bureaucratic tactic to stifle discussion.