Recall we worked on simulating operations of elevators, acting as an interactions of people and machines. Made me note this piece. In the CACM:
Elevator Makers Think Outside the Box, and Even Sideways By Reuters
ThyssenKrupp's new $43 million elevator test tower soars 246 meters (808 ft) above the German town of Rottweil, but the company's lifts chief is not only thinking vertically. .... "