Multiple systemwide disruptions occurred, stranding commuters. The cause of these disruptions is attributed to aging infrastructure. This issue arose during a heat wave, exacerbating the situation for those affected.

Further information about the disruptions and their impact is available from the source. The source reports on the events and their underlying cause, providing more details on the situation.

Details about the disruptions, including the extent of the impact on commuters, can be found through the source, ABC7 Bay Area.