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Whether driver or pedestrian, always check on local traffic regulations.

无论是司机还是行人，一定要查看当地的交通规则。

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But even pleasurable mental fantasies left participants no happier than when they were focused on whatever activity they were doing: weaving through traffic, tying their shoes, writing out a check.

但即使是愉快的心理幻想也没让参加者感到比集中精力做随便什么事情：如在交通高峰期穿梭、系鞋带、开一张支票更快乐些。

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City managers will deploy LED street lights to check traffic conditions and keep a lid on municipal expenses.

FORBES: 5 Myths On LED Lighting

Then the app can check traffic and notify users if there is bad traffic on their routes and suggest alternatives.

FORBES: Sherpa, The Latest Personal Assistant App, Focuses On Location

Many in the force believe new measures had to be put in place to check habitual traffic violators.

BBC: India cardboard traffic police to deter violators