With the recent opening of Metro’s Expo Line, greater Los Angeles’ rail transportation network moved another step closer to linking the dense Westside with communities across the southland and providing a viable alternative to the automobile, at least for certain routes. This milestone is noteworthy in that it represents yet another opportunity for a Metro transit line to remake the city’s built form, as well as its civic and cultural life. It also harks back to a time when the region had the largest electric railway system in the world, comprised of what were commonly called Red Cars.