路上擁堵時，你是否也抱怨過道路太窄，車道太少？其實避免擁堵的關鍵還在于道路規(guī)劃。給道路瘦瘦身，減減肥，反而會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.
道路瘦身是一種交通規(guī)劃技術，通過減少車道數(shù)量，和降低車道的有效寬度，來達到系統(tǒng)性改進交通狀況的目的。

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

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.
美國交通部稱，道路瘦身可使交通事故發(fā)生量平均降低29%。在一些小型城市，這種設計方法可將事故數(shù)量減半。

（中國日報網(wǎng)英語點津 yaning）