After more than a year of rolling through downtown Tempe and encircling the Arizona State University campus, the Tempe Streetcar has settled in and become an essential part of the Valley’s preeminent college town. The modern streetcar line spans 3 miles and includes 14 stops on a L-shaped route that travels along Tempe Town Lake, spools onto University Drive, jets on Mill Avenue, funnels east toward ASU Gammage auditorium and ends on Apache Boulevard just west of McClintock Drive…