Tram-trains & trolleybuses?

Modern, European-style transport technologies that could provide New Generation Transport for the Leeds City Region.
Trolleybus in Lyon, FranceThe New Generation?
European-style trolleybus network for the Leeds City Region?
TramTrain, SaarbruckenTram-trains
Your questions answered.
TramTrain, SaarbruckenTram-trains in action
How the Leeds City Region can learn from Karlsruhe.
Trolleybus in Lyon, FranceTrolleybuses
Why a european-style system could be right for the Leeds City Region.