Equipped To Survive Equipped To Survive® Presents
The Survival Forum
Where do you want to go on ETS?

Topic Options
#298906 - 04/30/21 02:30 PM The Physics of Crowds
brandtb Offline
Addict

Registered: 11/26/04
Posts: 480
Loc: S.E. Pennsylvania
Headline from today's Wall Street Journal -

Dozens Killed in Israeli Stampede

The Physics of High-density Crowds -

Highly technical academic lecture on crowd dynamics, but pay particular attention to 'density wave' (1:55)

https://www.youtube.com/watch?v=hOIJQFGZKJ8

9 Quick Tips to Survive In a Crowd -

https://www.youtube.com/watch?v=1EXEdnil93k

The Hillsborough Stadium Disaster -

https://www.youtube.com/watch?v=8AWGVYpAaQc


Edited by brandtb (04/30/21 02:39 PM)
_________________________
Brian Brandt

Top
#298907 - 04/30/21 05:33 PM Re: The Physics of Crowds [Re: brandtb]
Herman30 Offline
Addict

Registered: 08/08/06
Posts: 458
Loc: Finland
No #1 lesson to survive crowds = don īt be where there are huge crowds.

Top
#298909 - 04/30/21 06:31 PM Re: The Physics of Crowds [Re: brandtb]
Ren Offline
Addict

Registered: 11/05/07
Posts: 445
Loc: Wales, UK
Yeah, Hillsborough was awful.

All the measures put in to prevent hooliganism backfired and caused more death & injury than the hooligans ever would.

Top
#298910 - 05/01/21 12:25 AM Re: The Physics of Crowds [Re: brandtb]
dougwalkabout Offline
Crazy Canuck
Carpal Tunnel

Registered: 02/03/07
Posts: 3076
Loc: Alberta, Canada
This is fascinating information. Thanks! I don't really see myself in that situation but the psychology is a valuable tool -- and the practical approches. Notes taken.

Top
#298919 - 05/03/21 08:01 PM Re: The Physics of Crowds [Re: brandtb]
TeacherRO Offline
Carpal Tunnel

Registered: 03/11/05
Posts: 2574
Sadly, this happens with increasing regularity.

Top
#298938 - 05/10/21 06:39 PM Re: The Physics of Crowds [Re: Herman30]
Roarmeister Offline
Old Hand

Registered: 09/12/01
Posts: 960
Loc: Saskatchewan, Canada
Originally Posted By: Herman30
No #1 lesson to survive crowds = don īt be where there are huge crowds.


Not always possible when escaping from a building in a normal situation. In a nightclub or confined outdoor concert situation, the situation is worsened because of the density of the crowd. I also recall an incident in Britain where the crowds had to escape a fire but a barrier fence impeded their ability to flee in the most natural direction - out on to the field. There have been several notable night club fires where the density in combination of restricted access to exits compounds the problem.

2ndly people tend to try to leave via the same exit they came in instead of a more immediate exit. 3rd people tend to want to find each other in a crowd so they can leave together, not knowing that they are simply compounding the problem by milling around, fighting the flow of the people and causing traffic blockages. And 4thly, what is worse is the lone person separating from his personal group to "go check things out, assess, and return".

People might be stupid in a normal situation but in a crowd they are absolute idiots.

Top
#298940 - 05/10/21 10:26 PM Re: The Physics of Crowds [Re: brandtb]
Ren Offline
Addict

Registered: 11/05/07
Posts: 445
Loc: Wales, UK
Yeah, re idiots thing.
In marches (protest and the like) virtually no one knows the intended route. So you have people following strangers in front of them, and so on til the front of the march.
So its possible a small group can insert themselves into the very front and influence where the march goes.


Edited by Ren (05/10/21 10:27 PM)

Top
#298947 - 05/11/21 03:49 PM Re: The Physics of Crowds [Re: brandtb]
brandtb Offline
Addict

Registered: 11/26/04
Posts: 480
Loc: S.E. Pennsylvania
Back when I used to have to go to business meetings in unfamiliar buildings I would spend a few minutes scouting out the fire exits.

Similarly, when checking in to a hotel, I would go to my room and then walk down the hall to the fire exit, counting the number of doors (because you may have to crawl to it in a smoke filled hallway).
_________________________
Brian Brandt

Top
#300322 - 11/07/21 12:58 PM Re: The Physics of Crowds [Re: brandtb]
sgt253 Offline
Stranger

Registered: 09/26/17
Posts: 7
Loc: Chicago, IL USA
It looks as though another crowd tragedy has occurred in Houston's AstroWorld at a music concert with eight (8) dead and many injured.I saved the above information when it was first presented and shared it with my Family. I will continue to share it with everyone that I know in hopes that it helps someone, somewhere.Thanks brandtb for the information.

Top
#300332 - 11/08/21 09:58 PM Re: The Physics of Crowds [Re: sgt253]
brandtb Offline
Addict

Registered: 11/26/04
Posts: 480
Loc: S.E. Pennsylvania
Originally Posted By: sgt253
It looks as though another crowd tragedy has occurred in Houston's AstroWorld at a music concert with eight (8) dead and many injured.I saved the above information when it was first presented and shared it with my Family. I will continue to share it with everyone that I know in hopes that it helps someone, somewhere.Thanks brandtb for the information.


From news reports, it looks to be a case of 'crown crush' resulting in asphyxiation, rather than trampling of those who have fallen (which is a less common cause of death in crowd situations).
_________________________
Brian Brandt

Top



Moderator:  Alan_Romania, Blast, cliff, Hikin_Jim 
May
Su M Tu W Th F Sa
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31
Who's Online
0 registered (), 69 Guests and 5 Spiders online.
Key: Admin, Global Mod, Mod
Newest Members
Zed6309, Scrapiron, SIMULATIONiQ, joshbrown, reeldoc
5359 Registered Users
Newest Posts
Arizona Fatality
by chaosmagnet
43 minutes 3 seconds ago
A bug that eats through your plastic gas cans
by Ren
Yesterday at 01:04 PM
Anyone here knows about stocks ?
by Chisel
Yesterday at 06:00 AM
There are many good people out there
by Chisel
05/17/22 02:50 PM
76% of Documented Handgun Defenses Against Bears H
by DaveL
05/15/22 12:11 AM
We're Moving Back to Texas
by Phaedrus
05/13/22 09:56 PM
Lifevac
by hikermor
05/13/22 01:09 PM
My Micro Blog
by Chisel
05/01/22 10:56 PM
Newest Images
Tiny knife / wrench
Handmade knives
2"x2" Glass Signal Mirror, Retroreflective Mesh
Trade School Tool Kit
My Pocket Kit
Glossary
Test

WARNING & DISCLAIMER: SELECT AND USE OUTDOORS AND SURVIVAL EQUIPMENT, SUPPLIES AND TECHNIQUES AT YOUR OWN RISK. Information posted on this forum is not reviewed for accuracy and may not be reliable, use at your own risk. Please review the full WARNING & DISCLAIMER about information on this site.