As recently as the 1920s, many American cities and towns were connected by a network of electric railroads and interurban trolleys. Within cities, electric street railways, trolleys, and elevated trains, moved large numbers of people easily and cheaply, with minimal congestion and pollution. But steel-wheeled electric/rail mass transit systems did not serve the needs of the automobile manufacturers and their allies in the steel, rubber, glass, concrete, and oil industries.
Cities where GM managed to eliminate electric/rail systems, and replace them with buses and private cars, included New York, Philadelphia, Baltimore, St. Louis, Oakland, Salt Lake City, and Los Angeles
Between 1920 and 1955, General Motors bought up more than 100 electric mass transit systems in 45 cities, allowed them to deteriorate, and then replaced them with rubber-tired, diesel-powered buses
Los Angeles was served by the largest electric/rail mass transit system in the nation. The Pacific Electric Railway ran more than 1000 trains per day over 760 miles of rail lines to such outlying stations as Redlands, Corona, Santa Monica, Redondo Beach and Balboa, carrying light freight as well as passengers. Its last line, to Long Beach, was abandoned in 1961 --the same year the ingredients of smog were first identified in L.A.'s toxic air.
During this same period 1920-1955, GM worked to convert electric-powered commuter railroads to diesel-powered locomotives
Lyon, France
