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1·In the past, there was often an automatic reaction to increased traffic: just widen the roads, says Mark Poch, the Bellevue Transportation Department's traffic engineering manager.

贝尔维尤运输部交通工程经理马克·波奇说，过去，人们对交通量的增加往往有一种自动的反应：只要拓宽道路就行了。