"Transitory accommodations" shall mean tents, sheds, lean-tos, tarps, huts, cabins, trailers or other enclosures which are not permanently attached to the ground, may be easily erected and dismantled, and are intended for temporary occupancy, usually for recreational or humanitarian purposes. Transitory accommodations are permitted provided the community development director determines on a case-by-case basis that such use possesses no characteristics which would adversely impact the community in any way, or that any potentially adverse characteristics can be adequately minimized and/or mitigated so as not to be materially detrimental to the health, safety and welfare of the community. Transitory accommodations can vary widely in their characteristics, which include but are not limited to size of site, surrounding land uses, duration, number of occupants, noise generation, and light and glare emanation. Accordingly, certain types of transitory accommodations may require the imposition of extensive conditions to mitigate potential adverse impacts to the community, while others may not; in some cases, adequate mitigation of impacts may not be feasible, and a proposed transitory accommodation consequently may not be allowed. The community development director shall therefore have the authority to approve, approve with conditions, or deny a permit for a transitory accommodation proposal, after consideration of the performance criteria set forth herein.