MessageToEagle.com - Ants are amazing little creatures living in highly organized societies.
Ants mirror the actions, emotions and industries of human societies, the last of which they often do more
effectively than man does, writes Jae Choe, a skilled popular science writer and lecturer, in his wonderful book
Secret Lives of Ants.
Now, we, humans need their efficiency.
Taking inspiration from nature, engineers have observed the crowd flow of ants to
help design exits that function more effectively during evacuations of large buildings and sporting arenas.
Crowd safety is emerging as an important issue worldwide following numerous incidents in which crowd panic
has resulted in injuries and/or death.
The most recent incident being the Kiss nightclub fire in Brazil earlier this year which saw 242 people die.
In research published in Transportation Research: Part C Monash University researchers have used a bio-inspired
approach to better understand human traffic flow and potentially save lives in large-scale emergency situations.
Given the global trend towards mass
urbanisation, and increasing incidence of mega-events, terrorism and natural disasters, it was important that public
infrastructure such as office buildings, railway stations and sports arenas were designed to facilitate smooth
emergency evacuations, according to lead researcher Dr Majid Sarvi from the
Department of Civil Engineering.
"With the large numbers of people who attend events, work in ever increasing tall buildings and use our
transport systems, it is important buildings are designed to allow for quick and efficient evacuation should
the need arise," Dr Sarvi said.
The researchers examined several exit options in experiments: in the middle of a wall, at the corner, at the
middle of a wall with a partial obstruction near the exit and at the corner with a partial obstruction near the exit.
"We found the ants evacuated rooms faster when the exits were located in corners rather than in the middle of
hallways," Dr Sarvi said.
"The location of the exit at the corner was 93.5 per cent more effective in reducing the evacuation time than
when the exit was positioned in the middle of the wall."
Dr Sarvi said the increased effectiveness of the corner exit could be due to the minimisation of conflict points
at the evacuation point.
"With the middle exit, ants escaping along both sides of the wall had to change their direction at the exit in
order to evacuate. This created conflict with the ants moving straight towards the exit," Dr Sarvi said.
"However, with the corner exit scenario, there were comparatively fewer conflicts with the ants moving straight
towards to exit and those escaping from the side walls."
The researchers then simulated a human evacuation scenario and found that the ant model prediction accurately
predicted human traffic flow.
"In the future, there is need to further examine the physical and behavioural similarities and dissimilarities
among these different biological entities and how they may help to develop clever design solutions that could enhance crowd safety,"
Dr Sarvi said.
Lake In France Turns Red
This year, we have encountered the color red in places where we don't expect to see it. A while back the strange appearance
of Azov Sea stunned residents who saw how the water had turned red. The red rocks in China have also puzzled scientists for a long time.
Now, a lake in Southern France has also suddenly turned red.
An Incredible Geological Phenomena
Earth is an amazing planet and our nature is full of wonders. We have previously written about incredible singing plants.
This time we would like to focus our readers' attention on another amazing geological phenomena, namely so-called growing stones.
It is difficult to image that stones can really grow, but these stones seem to be alive!
Yangtze River In China Turns Red
We have seen on a couple of occassions how lakes and seas have suddenly turned red.
In August a lake in Southern France unexpectedly changed color and shortly before that the strange appearance of
Azov Sea stunned residents who saw how the water had turned red....