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hey_dingus t1_ithxg4d wrote

Reply to comment by CriticalStrawberry in New 8000 series Metro trains will have heated floors and charging outlets by Yaratam

The ventilation system on the trains is a major weight contributor and power draw. The 7000 series trains weigh way more than the 2, 3, or 6k series. Heated floors, and the lighter ventilation system, could save a lot on the overall weight of the rail cars. Being heavy is part of the operational problems of the 7ks; more wear and tear on the rails, draws a lot more power from the 3rd rail than the legacy trains for all its systems, etc.

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Mack21 t1_itjfirv wrote

The 7000s being heavy is also why they’re fortifying the redline pier caps on the elevated sections of the track!

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jednorog t1_itlq6a3 wrote

Potentially a silly question, but given that we know airborne pathogens are around and here to stay, wouldn't a strong ventilation system be something to prioritize?

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