>>978921Herbovore trains?
>>978921Sure there are, but the national systems: either metre or cape and some mostly defunct ones in three feet. Oh, and 760 mm also had a pretty respectable network at one point.
You are right in the regard that any nice round number has probably been a railway gauge somewhere, but I don't think that was the point.
>>978908Yes, but that's like only for commuter trains. We've had small and not even so small freight branches closing pretty much continually up to this day. The national rail monopolies have pretty much outpriced themselves from the freight business.