On Track 2, in the center, BNSF Railway train S-LHTLPC1-24A, an Intermodal Stacks train heading from Los Angeles Harbor's TICTF to Logistics Park near Chicago IL, is awaiting the evening passenger rush to end.
That rush is exemplified by, on Track 3, an eastbound (soon to be southbound in just a few yards) Amtrak train 784, a Pacific Surfliner traveling from Los Angeles to San Diego behind AMTK F59PHI 463.
And, on the right, on Track 1, Metrolink commuter train 689, an Orange County Line train carrying commuters from Irvine to Los Angeles, departs the Fullerton Transportation Center with leased Rosen Beaudin Group (RBBX) F59PH 18520, formerly GO Transit 520, shoving on the rear. That's a lot of action, but not uncommon here in the mornings and afternoons.