This is because vehicles themselves are starting to relay real-time traffic data-and the more that do so, the more accurate traffic information will become.

这是因为装备这种设备的车辆自身也在传递着实时行车信息。传递信息的车辆越多，交通信息就越精确。

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Think in terms of a subway map, but add in layers of data like water and sewer lines, power grids, and real time traffic information.

例如，在地铁地图上增加其他一些数据，如供水和排水管道、电网和实时交通信息等。

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For instance, it makes sense to cache map data to reduce response time, but it's often impossible or impractical to cache results of search queries or real-time traffic information.

比如，可以缓存地图数据来减少响应时间，但通常并不适合将搜索查询结果或者实时交通信息进行缓存。

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BERLIN--(BUSINESS WIRE)--TomTom today releases the latest version of its real-time traffic information service, TomTom HD Traffic at the IFA consumer electronics show.

ENGADGET: TomTom announces HD Traffic upgrade, BMW Partnership

Connecting commuters improves the commute by allowing users to share or receive real-time information on traffic issues.

FORBES: New Cities Foundation Says Connected Drivers Are Less Stressed

Future iDevice interfaces may also be leveraged for Apple to enhance its upcoming iOS mapping software with cloud-based crowd-sourced info for more reliable real-time traffic information.

FORBES: Updated: iPhone's Siri Is Coming Along For The Ride