 Interstate 5's more direct Los Angeles-to-Sacramento route bypasses San Francisco, San Jose, Oakland, and the rest of the San Francisco Bay Area.Original plans also called for a loop Interstate with a directional suffix, I-5W.This route now roughly corresponds to I-580 from I-5 south of Tracy to Oakland, I-80 from Oakland to Vacaville, and I-505 from Vacaville to I-5 near Dunnigan.