You will see the same thing in many cities... at one time cars did not rule the world and the streetcar was one of the best ways for people to go from a to b.

Same thing has happened with electric trolley buses as our last ones went out of service a few years ago and were replaced with new diesel units and now the city is expanding our new light rail system (a good thing).

They all create pollution in one way or the other but it sure was nice to be able to commute behind the trolley which was quiet and did not belch diesel exhaust.