Kevin Balke, a research engineer at the Texas A&M University Transportation Institute, says that while smart lights can be particularly beneficial for some cities, others are so jammed that only a sharp reduction in the number of cars on the road will make a meaningful difference.
德克萨斯农工大学交通研究所的研究工程师凯文·鲍克说,虽然智能交通灯对一些城市特别有帮助,但有些城市太拥挤了,只有大幅减少道路上的汽车数量才能有效改变拥堵的局面。
Looking ahead, prospects are for a sharp reduction in export growth.
前景是出口增长的巨额下降。
That has led to a sharp reduction in the US trade deficit, and meant that the rebalancing process was half complete.
这也导致美国贸易逆差急剧下降,也就意味着再平衡过程完成了一半。
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