Anyone taking the train to OAH (LA and/or San Diego)?

[Stephanie Fernandez, RMR]

I'm in Riverside, and I'm trying to find out whether or not I can rely on the train to get to the OAH office in Los Angeles and possibly San Diego. To be more specific, I'm trying to confirm I can actually count on getting there reasonably close to the scheduled arrival time. I've heard some reporters do it regularly. 

I'm trying to find a way to be a team player and commute wherever I'm needed without running my car into the ground if possible.

Thanks for your time.