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by jdietrich 5241 days ago
There's a very similar problem in maritime navigation. Ships used to steer their course along shipping lanes by hand, but now they're automatically steered by GPS. Everyone is crowded right into the middle of the lane, greatly increasing the likelihood of collisions. After a fatal accident caused by this issue[1], the British Coastguard specifically instruct ships not to follow the exact line of the shipping lanes in the English channel.

[1] http://www.maib.gov.uk/cms_resources/SB_%202_2001_%20Ash_and...