Why buses? The subway is faster and more reliable; why not build a subway instead?
Subways are indeed faster and more reliable than bus systems which must compete with general traffic and pedestrians for the same street space. Subway lines, however, require costly up-front infrastructure and equipment investments and take many years to construct. Select Bus Service, often referred to as “rubber-tired light rail,” uses a variety of techniques and technologies that will improve the quality and performance of transit much more quickly at a much lower cost.
