Technology change can rapidly make a facility inefficient. There are numerous examples of this occurring and one glaring impact is the next generation of air cargo fleets. Tail heights of wide-bodied aircraft over narrow-body aircraft create parking problems and inefficiencies due to setback requirements for many facilities. Even some facilities designed and built within the last few years have failed to anticipate the next generation of aircraft with increased separation requirements. Another negative impact is the need for increased clear heights in newer facilities. A 22-foot clear height was often efficient. Now a 22-foot clear height can lead to obsolescence. Not all technology has negative impact. A facility sponsor (airport, private sector, carrier) can create more space with automated technologies such as new stacking systems. The key is to examine evolving technology and, where feasible, make allowances for accommodation in the infrastructure at a later date.