Eli5 – How does Google and Apple update and maintain the accuracy of their Maps?

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These maps seem to have a lot of intricacies built in (I.e. routing one direction on the way from A to B, but routing another due to “No U Turns / Left Turns”). They also update road names and construction blocks pretty quickly. Do they partner with government entities to pull this off since it borderlines a public utility?

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Anonymous 0 Comments

No, they track the phones that people are using. There are controls on the desktop to report issues, so the motivated people who have been sent the wrong way are an excellent source of update data.

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