Passed the Written Exam for the BART Train Operator Position - Next Steps

I took the written exam on Saturday, July 21 at Chabot College. HR mentioned that it would take about two weeks for the results. Fortunately, an e-mail was sent Friday, July 27 notifying me that I received a passing score. Next step is a "situational awareness exercise designed to test observational skills."

Does anyone have any insight or experience with this exercise that they could share? I'd appreciate any help.

For those curious, here is some additional information: The exercise is on Monday, August 6 and only lasts one hour including check-in. E-mail also says that this is the only time the exercise will be scheduled - no make-ups or reschedules. If you pass, oral interviews will be between August 8-14.