In Japan, seismic design has been adopted for buildings on the ground surface and important mechanical structures. However, few studies have examined the maintenance of system functionality during earthquakes by considering the building and machinery within the building as a single system. For example, during strong earthquakes, not only the building itself is damaged, but also various piping, electrical cables, air conditioning equipment, elevators, and other mechanical elements within the building that maintain the function of the building system are often damaged, resulting in the failure of the building's function. In addition, the impact of such damage on evacuation routes can be significant. Elevators and escalators, which are always used for human flow, cannot be used in evacuation routes. In the event of a disaster, lifts and escalators are designed to quickly move to the nearest floor and unload passengers, and escalators may stop suddenly when an abnormality is detected, such as in the event of an earthquake. In any case, the escalators are not yet ready to be utilized as evacuation routes.

This study examines the concept of appropriate evacuation routes based on pedestrian simulations considering damage events to mechanical structures related to the selection of evacuation routes, assuming the escalators after the revision of the seismic design standards reported in the previous paper. In this paper, pedestrian simulations in a 40-story high-rise building are conducted to quantitatively evaluate the time required to complete evacuation and to analyze the effectiveness of using escalators and elevators for rapid evacuation. As a result, it was confirmed that the building model used in the present analysis can achieve a time reduction of about 300 seconds compared to a staircase evacuation, and that the use of escalators and elevators can achieve an evacuation time reduction of about 70 seconds for every 10 stories.