The Paris area has two rapid transit systems, the Métro and the RER. Do trains run on the left or the right?

Correct answer: RER on the left, Métro on the right

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What people think about it: 2 Comments
Chris
Chris
Crazy Europeans, they should drive on the left like they do in the UK, safest way, most humans are right-handed and the brain is most alert in spacial awareness on the right hand side. Sorry Europeans and American’s… UK is best…🇬🇧
Tom
Tom
Old man X, each other. If the train runs on the right then an oncoming train will pass to your left. For trains running on the same route but in opposite directions.