Abstract: Bogota, the capital of Columbia, used to be described as a city with poor air quality, deteriorating urban environment and serious traffic congestion.

• 摘要： 南美洲国家哥伦比亚的首都波哥大曾以交通严重堵塞、城市环境恶化而著名，被认为是一个几乎没有希望的城市。