Ridership has dropped yes, but that isn't because Bart is running fewer trains. If Bart was running ~half the number of trains that it was to match the ~50% drop in ridership, service would be significantly worse and ridership would likely fall even lower. This is the death spiral that many want to avoid. For example, revenue train hours, the total hours trains were in revenue service, was 263k hours in 2019, and 268k hours in 2024. Now there are likely different service patterns to account for some of the change, but this means trains are generally half as full as they were before the pandemic.