棚户区的自动扶梯
In 2011, a huge outdoor escalator was erected in one of the poorest districts of Colombia's second largest city. With the installation of a giant outdoor escalator, their journey was cut from 35-minutes to just six.2011年,一台巨型户外自动扶梯在哥伦比亚第二大城市的一处贫民窟建成。随着该自动扶梯的建成,当地居民的行程从35分钟减至6分钟。