Being the material foundation of urban traffic, road network is the lifeline of the city, which supports other life systems.

道路网络作为城市交通的物质基础，是城市的生命线，支撑着其他生命系统。

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Newcastle had been chosen because the city had "a long track record of making the city more intelligent using transport systems in order to keep the traffic flow moving", she said.

BBC: Green light sat-nav trialled in Newcastle