| Comment | It's hard to get across just how old a system SPT are dealing with in the Subway. The original carriages didn't have any engines at all and were pulled by clutch and cable (incidentally, this is why you can notice a "pit" underneath the rails).
What this means is that trying add electrical systems to the subway is a massive ballache and is the reason why the third rail is more or less bolted onto the side of the track. |
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