If it is unable to relieve traffic congestion on the city expressway efficiently, the larger traffic jam will ultimately emerge in city road network as a result.

发生在城市快速路上的交通拥堵如果不及时消除将可能导致路网大面积拥堵，因此，快速路拥堵的研究和治理变得尤为重要。

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We've also been keeping an eye on self-driving cars this week, like Ford's new Traffic Jam Assist technology, which could help ease congestion and improve the flow of traffic.

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