> Far more busses operated in Chicago/NYC etc in 1970 than streetcars in 1920. Different times, the system now evolved from a state where streetcars were remo

> Far more busses operated in Chicago/NYC etc in 1970 than streetcars in 1920. Different times, the system now evolved from a state where streetcars were removed so they can't be compared in that way. Chicago/NYC was a very different place than it was in 1920, itself would change in ways because of a bus system vs streetcars.