  Currently, there is an increasing number of super high-rise buildings in
urban cities, the issue of evacuation in emergencies from such buildings comes
to the fore. An evacuation experiment was carried out by our group in Shanghai
Tower, it was found that the evacuation speed of pedestrians evacuated from the
126th floor was always slower than that of those from the 117th floor.
Therefore, we propose a hypothesis that the expected evacuation distance will
affect pedestrians' movement speed. In order to verify our conjecture, we
conduct an experiment in a 12-story office building, that is, to study whether
there would be an influence and what kind of influence would be caused on speed
by setting the evacuation distance for participants in advance. According to
the results, we find that with the increase of expected evacuation distance,
the movement speed of pedestrians will decrease, which confirms our hypothesis.
At the same time, we give the relation between the increase rate of evacuation
distance and the decrease rate of speed. It also can be found that with the
increase of expected evacuation distance, the speed decrease rate of the male
is greater than that for female. In addition, we study the effects of actual
evacuation distance, gender, BMI on evacuation speed. Finally, we obtain the
correlation between heart rate and speed during evacuation. The results in this
paper are beneficial to the study of pedestrian evacuation in super high-rise
buildings.
