Traffic is always a nightmare in Los Angeles -- and it's expected to be even worse with a full slate of events throughout the city this weekend ... but TMZ Sports has learned the local public transit system is taking action to mitigate as many headaches as possible.
It's a fully stuffed few days for the City of Angels -- especially Friday, with the Dodgers, Lakers and USC all in action ... as well as a concerts being held at the Intuit Dome and Forum.