Finance and Development (1992) describe how [?] vehicles constitute between 25 and per cent of all vehicles in many Asian cities in the form of . Their number is increasing, though are also on the rise. Supporting the types of transport need not be mutually exclusive. NMVs have the advantage of being good for the and cheap. However, their use must be actively encouraged by . For example, NMV production should be supported, while people who cycle to work could be .