There is a trend to build more, longer and deeper underground facilities for, e.g., underground transportation systems. These facilities do, however, introduce new challenges in terms of fire safety. As an example, people may be required to evacuate long vertical distances in case of fire (termed ascending stair evacuation).
Due to the lack of previous research on the topic of ascending stair evacuation, todays methods and models that are used in the fire safety design process include great uncertainties on the process assessed. A research project was therefore inititaed in October 2013 with the purpose to study and quantify the expected evacuation scearnio that will arise during ascending stair evacuation. In a number of evacuation experiments in tall buildings as well as escalators, the goal is to study the potential effect of, for example, fatigue and phsyical exhaustion on the walking speed and related behaviour. The overall goal of the project is to increase the reliablity of future evacuation assessments.
The research project is a multidisciplinary project, incorporating researchers from different disciplines (fire safety engineering and physiology) as well as practictioners with great experience of fire safety design. The total budget is approximately 2 MSEK (~ €230 000), and the research project will end in September 2015.