Across the country there were once many streetcar systems, even in New York. Many of those have over the years been removed, in a few cases because the streetcars added to the difficult traffic conditions in the cities. Though Manhattan’s trains were moved underground, the streetcar systems in San Francisco and New Orleans have still survived. New Orleans’ system has been forever written into the public consciousness by Tennessee Williams’s play A Streetcar Named Desire, and is one of the two North American streetcar systems that has operated with little changes in route. The other is Toronto Transit Commission’s streetcar...