"This 1954 picture, taken from Marshfield Junction, shows the Douglas Park ""L"" in transition. The 6000s in the foreground are on the old Met ""L"" alignment, while the train in the background is on a new portion of structure, allowing a direct connection to the Logan Square portion to the north. In turn, a new connection was built allowing Douglas trains to proceed downtown over the Lake Street ""L"", which is the alignment now used once again by today's CTA Pink Line. Andre Kristopans: ""In the shot of old and new at Marshfield Jct, the 6000 is a regular Douglas train, while the woods on the connector are a work train. There was never service simultaneously on both routings."""
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