Scientists believe that simple steps to speed traffic are a factor in reducing some public-health problems.

科学家认为，改善交通拥堵的简单措施有助于减少某些公共健康问题。

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In the past eight years, however, some problems have emerged from the holidays, including traffic congestion and exhausted public facilities.

在过去的八年时间里，这样的休假方式产生了一些问题，包括交通拥堵以及严重透支的公共设施。

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It is arranged as "overall to partition" in the thesis and some problems of public - travel traffic information service system are studied in the thesis.

论文采用从“整体到局部”的研究方法对公众出行交通信息服务系统的若干问题进行研究。

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