Bicycles can travel on very narrow roads and do not take up much space. They also take up much less parking space than cars or motorbikes. Related costs are negligible compared to the cost of the expensive Taipei Mass Rapid Transport System (MRTS).
單車可以在狹窄的道路上行駛，所佔的空間不大，連停車場地的面積都比機動車輛小很多，若是與昂貴的地鐵捷運相較，所需的社會成本更是不成比例。