Hannover: A train of three 6000 series cars passes the railway bridge
not far from the Hannover exhibition ground. As the lenght of this train
of 84 m is more than the 75 m the German rules for tramway service allow,
a special permission is needed for this. During the Hannover fair or the
CeBIT, there is no other way to get lots of visitors from the central
railway station to the exhibition ground and back. Even in broad daylight,
the long train have to light their lamps then.

Photo by Sven Herzfeld (s.herzfeld@maschsee.han.de)