A BART train pulls into the Millbrae station along the BART system in San Francisco, California, on Thurs. June 23, 2016. See what some future BART stations will look like when they are completed.

A BART train pulls into the Millbrae station along the BART system in San Francisco, California, on Thurs. June 23, 2016. See what some future BART stations will look like when they are completed.

Photo: Michael Macor, The Chronicle