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The video is very interesting.  But it raises a question or two in my mind. Other than operating the doors, what are the duties of the conductor?  Also, given the level of automation in most other activities, could the doors not be operated by the driver?  Does the subway train really need a conductor? I lived in New York for eight years during the 60s and 70s.  I thought I knew the job duties of a subway conductor.  Turns out in retrospect that I did not really understand them.
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