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According to the Traffic Performance Index, which measures congestion1 on a scale of zero (smooth) to 10 (snarled), Beijing hit 8.5 during the evening rush hour on Wednesday and 9.1 on roads within Third Ring Road at 7 pm.
交通指数用0到10的数字来衡量交通拥堵程度,10为最严重。周三晚高峰时段,北京交通指数为8.5,而晚7点三环路的指数高达9.1。
Traffic Performance Index就是“交通指数”,是通过北京街头的4万余辆出租车实时回传的地理位置信息和车速,最终测算出来的。英语中描述“交通拥堵”的词有traffic jam、traffic congestion以及heavy traffic等,拥堵情况多出现在morning/evening rush hour(早、晚高峰时段)以及节假日之前的inbound and outbound travel season(进出城旅游季)期间。
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