Developers are using those figures to create interesting apps, such as Matthew Somerville's live train map for the London Underground.

开发者正在利用这些数据创造一系列有趣的应用程序，如马修·萨默维尔(Matthew Somerville)就为伦敦地铁系统开发了一套实时铁路地图。

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Each dot represents a train on the national network; visitors can filter the map to see all the trains bound for a particular station.

每个点代表国家铁路线上的一列火车；用户们可以通过筛选来查看地图上某一个站点的所有火车。

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To mention a few… the girl who helped me to find Chengdu railway station, the old man who helped to get down from train in Shijiazhuang, the hotel-assistant, who helped to find city map etc , etc.

我仍然记得那些“恩人”们——带我找到成都火车站的女孩，我在石家庄下火车时助我一臂之力的老者，还有不辞辛苦帮我找地图的宾馆服务员……

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He says the display was designed to look like a map of the local Washington Metro train system instead of a tree.

VOA: special.2009.12.01

At first these display table numbers, but once the train departs they show a constantly updating route map, interrupted by carefully timed bursts of music and video that match an attraction appearing alongside the train.

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He can draft a contract, train a falcon, draw a map, stop a street fight, furnish a house and fix a jury.

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Mr Beck was notably ahead of the game in producing a version of his London map showing all underground and surface level train services as early as 1938.

BBC: London's Tube map creator Harry Beck gets blue plaque