道路也瘦身？

路上拥堵时，你是否也抱怨过道路太窄，车道太少？其实避免拥堵的关键还在于道路规划。给道路瘦瘦身，减减肥，反而会收到意想不到的效果。

A road diet is a technique in transportation planning whereby the number of travel lanes and/or effective width of the road is reduced in order to achieve systemic improvements.
道路瘦身是一种交通规划技术，通过减少车道数量，和降低车道的有效宽度，来达到系统性改进交通状况的目的。

One of the most common applications of a road diet is to improve safety or provide space for other modes of travel.
道路瘦身最常见的目的是使道路更安全，或者为其他通行方式提供空间。

DOT says that road diets can reduce traffic crashes by an average of 29 percent, and that in some smaller towns the design approach can cut crashes nearly in half.
美国交通部称，道路瘦身可使交通事故发生量平均降低29%。在一些小型城市，这种设计方法可将事故数量减半。

（中国日报网英语点津 yaning）