From
BBC» :-
http://www.bbc.co.uk/news/uk-england-nottinghamshire-26711943<quote>All early morning tram services in Nottinghamshire were cancelled because ice had built up on overhead lines.
Nottingham Express Transit (NET) said the trams could not run because the trams could not pick up power properly.
Trams were reintroduced just before 08:00 GMT but there were still delays to services.
Richard John Salter posted on BBC Radio Nottingham's Facebook page saying it was "unbelievable" for the service to fail due to the "first proper frost".
Peter Miles said: "So like the too many leaves on railway lines, our wonderful trams cannot operate in the winter when the temperature drops to freezing?"</quote>