BART’s Mammoth Machines: Escalators

Описание к видео BART’s Mammoth Machines: Escalators

BART’s escalators are giant, complicated machines. Uneven wear from the tens of thousands of people who ride them every day sometimes breaks and cause outages—but BART has a team of experts on hand to keep these “meat grinders” in working order. If you like ‘How's It’s Made,’ you’ll love this video. Read even more about what it takes to fix these machines.

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