Transports happen almost between any two process steps of a
product system. Generic transport datasets are available for
air, rail, road and water transportation. In order to facilitate
an easy application, all data are referred to the reference unit
of one tonne kilometre employing average load factors. In the
absence of detailed real market information, standard distances
are applied on the ecoinvent LCIs. For most materials, 100 km
with lorry plus 200 to 600 km with railway are assumed.