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Ksevio t1_j9yo0l6 wrote

It's not that it's impossible, there are trains systems that do it, it's just the MBTA system isn't set up to do it automatically. Even being off by a foot would mean the doors would be too narrow and restrict the flow of people

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StarbeamII t1_j9z88qg wrote

Then make the platform doors 2-3 feet wider than the doors on the train so that if your train is a foot off the door still works. It's not that hard.

EDIT: looks like the ones in London do exactly that.

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TDKevin t1_ja1t1as wrote

That gates could be 15 feet wide. It doesn't really matter as long as they're shut when the train isn't there.

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TDKevin t1_ja1t4pt wrote

Then make them ultra wide. It doesn't matter how big the gates are if they're shut when the train isn't there. Who said it had to be a perfect ratio?

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