Editing Tram-train (section)

==Technology==
The tram-train often is a type of [[interurban]]<ref>{{cite web|url=http://www.urbanrail.net/eu/de/ks/kassel.htm|title=UrbanRail.Net > Europe > Germany > Hessen > Kassel Tram / Straßenbahn}}</ref>&nbsp;— that is, they link separate towns or cities, according to George W. Hilton and John F. Due's definition.<ref>{{cite book |last1=Hilton |first1=George Woodman |last2=Due |first2=John Fitzgerald |title=The Electric Interurban Railways in America |date=2000 |orig-year=1960 |publisher=Stanford University Press |at= Original preface, 1960 page ix}}</ref>

Most tram-trains are [[Standard-gauge railway|standard gauge]], which facilitates sharing track with main-line trains. Exceptions include [[Alicante Tram]] and [[Trams in Nordhausen|Nordhausen]], which are [[Metre-gauge railway|metre gauge]].

Tram-train vehicles are dual-equipped to suit the needs of both tram and train operating modes, with support for multiple electrification voltages if required and safety equipment such as [[train stop]]s and other railway signalling equipment. The Karlsruhe and [[Saarbrücken]] systems use "[[Punktförmige Zugbeeinflussung|PZB]]" or "Indusi" [[automatic train protection]], so that if the driver passes a signal at a stop the emergency brakes are applied.