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I present to you the Milwaukee "Hop".
The city got a nice grant to build a better public transportation system than their bus system. Naturally the it was decided that a trolley/streetcar is the best balance of being not-too-expensive and being a big, impressive thing for the city. Contrasted to literally any other light rail system, it holds no separation from the rest of traffic at any point in its 2.1 mile loop which connects one side of downtown to the other side of downtown. It has the advantages of running on overhead 750VDC electric lines, and requiring the city to add rail to their streets, all while making sure local traffic stays the course of our streets' speed limits. With regular service taking half an hour to go about 2 miles, contrasted with walking the same distance in about the same time, what's not to like?