Imposed Load

Externally applied load on a structure or member, (other than wind load), produced by the external environment and/or intended occupancy or use. (See BS6399.)
Found on http://www.corusconstruction.com/en/design_guidance/the_blue_book/

Imposed Load

A load that can be move like boxs or vehicals.
Found on http://www.encyclo.co.uk/local/20708
No exact match found