When I turn off Location Services, why does my iPhone sometimes continue updating its Wi-Fi and cell tower data from Apple's crowd-sourced database?

为什么当我关闭了地理信息服务，iPhone有时仍从苹果的众包数据库里更新Wi-Fi热点和小区发射塔数据。

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Apple is now collecting anonymous traffic data to build a crowd-sourced traffic database with the goal of providing iPhone users an improved traffic service in the next couple of years.

苹果目前正在收集匿名交通数据，以建立基于众包的交通数据库。在未来几年，苹果将向iPhone用户提供更好的交通服务。

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Apple will pull traffic data from a variety of sources, including anonymous crowd-sourced data pulled from iOS users.

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Other efforts - such as UK-based OpenStreetMap and Israel's Waze are seeking to harness crowd-sourced data to offer their own products.

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Sadly, the map tools on carrier websites are needlessly painful, and most coverage apps that you'll find rely on crowd-sourced data -- great if others contribute, but that's not always the case.

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