No "universal" distinctions can be made between "town tramways" and other light railways because "tramway" and "railway" practices (and laws) varied considerably between countries. For example, the prevailing European standard to distinguish between "steam tramways" and "light railways, worked by steam traction" is based on rolling stock type. Lines worked by enclosed "tramway type" locomotives are classified as "steam tramways," and those worked by unenclosed locomotives are classified as "light railways." By this standard, virtually all Japanese examples of "steam tramways" would be classified as "light railways," because none (based on the photographic record) used European-type enclosed locomotives. Also in Japan, many of today's suburban electric railways were built under "tramway" concessions ("licenses") and were eventually changed to "railway" concessions. These lines had many "tramway" characteristics as built but few today.
