lenaitch
Senior Member
Some questions about the transit signals on the St. Clair and Spadina streetcar rights-of-way:
2- The vast majority of signals have 3 aspects. Red on top, amber in middle and green up-facing arrow on bottom. I believe that these mean the same as the automobile traffic signals mean for autos (please correct me if I'm wrong). This is opposite to the subway (at least Line 2) signals and many other railways that have green on top, red on bottom. Is this done on the streetcar rights-of-way so as to not be confusing with the automobile traffic signals?
Railway sequence - green on the top - mimics early mechanical/visual railway signal methods where a physical object (ball, flag, etc.) raised to the top of a structure indicated clear passage. It could be seen at a greater distance thus negating any need for unnecessary slowing. Hence the origin of the meaning of 'highball'. Since the subway is on a private, controlled ROW, it seems they chose to follow the railway protocol.