You'll notice that one of the gates is wider than the other. For every platform (but not every gateline), one gate is wider than the others. This is so wheelchair users, larger passengers, people with bikes or lots of luggage can get through. This one wide gate is set up bidirectionally. What often happens is someone who could use any gate, tries to come through the wide gate, when a user who can only use the wide gate is trying to get through the other way. This causes tension among users.
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