For example, one important achievement of former President Felipe Calderón’s administration was to push through a 140-mile highway connecting the interior city of Durango and the Pacific port at Mazatlán. Traversing extremely rough terrain with 200 tunnels and bridges, it promises to cut the transit time by three or four hours.
此外还有安全问题，这相当于对墨西哥大部的企业课以重税。比如，前总统卡尔德隆的一个重要成就打通了内陆城市杜兰戈（Durango）和太平洋港口城市马萨特兰（Mazatlán）的140英里高速公路。这是一段非常难建的公路，期间散布着200个隧道和桥梁，可以将耗时减少三到四小时。除了天气，这条高速公路颇有些瑞士的感觉。