As others have mentioned, I like the idea of showing all the rail lines on one map so people can decide for themselves which route makes the most sense for them, but also using something to differentiate between frequent service which includes streetcars and subways and less frequent service like GO, UP & VIA. I agree dotted lines should be used for the latter and solid lines for the former, but I don't see why the line couldn't be thinner for portions that are streetcar or streetcar-like. I see no reason why line 5 couldn't have thinner & thicker sections to denote when it's on the surface & when it's not. I think that would help with way-finding too.