Apparently one of the challenges with the upcoming debut of the Light Rail system in Phoenix, Tempe & Mesa, will be training pedestrians about the dangers of jaywalking across the light rail tracks.  Metro Light Rail Officials and the 3 city governments involved will start educating us all in advance of "opening day" for the light rail but be prepared for stricter enforcement & fines for jaywalking.

Read a little more about the subject at azcentral.com