Suburban districts like Tam-sui, Bei-tou, -Neihu, Mu-zha, Tu-cheng, and Xin-zhuang, once thought too inconvenient to visit for traffic reasons, have also been major economic beneficiaries of the MRT system.
詹仕聰指出，便捷的捷運路網，讓眾多原本習慣開車、騎機車的民眾，心甘情願地放棄私人運具，改當「捷客族」；也讓台北市減少了交通事故、空氣污染及溫室氣體的排放。