== English? == 

 Quote: A draisine primarily refers to a light auxiliary rail vehicle or trolley [my emphasis] 

 I am unconvinced that the word draisine has ever been commonly, let alone primarily, used in English in the chief sense given here, that of a light hand- or pedal-powered rail vehicle. Such vehicles are, to the best of my knowledge, called handcars in American English and (rail) trolleys in British English. 

 The only English-language use of draisine that I am familiar with is in reference to Mr von Drais's original wheeled-hobby-horse precursor to the bicycle. I therefore feel that – while merger with Handcar may not be called for (see discussion above) – the current introduction needs rewriting.  

 (And before anyone else says it: yes, I will do it myself; this is my justification before the event!) -