Here's a terrific "walking tour" by of the old Pacific Electric right-of-way that will become the new Expo Line. From the filmmaker Bendix5:
A speedy, time-lapse trip through the disputed rail right-of-way for Metro's Expo line - currently being built from Downtown Los Angeles to Santa Monica. Starting about 6 blocks West of Robertson & Venice through West LA to the corner of Pico & Sawtelle! Yes, no kidding - this is West LA and it was shot on July 10 & 11, 2010.