How to Control a Crowd

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How to Control a Crowd YouTube Video

How to Control a Crowd YouTube Video Description

Watch the Logistics of X episode diving deeper on the logistics of crowd control at the Hajj:
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Writing by Sam Denby and Tristan Purdy
Editing by Alexander Williard
Animation led by Josh Sherrington
Sound by Graham Haerther
Thumbnail by Simon Buckmaster


How to Control a Crowd Automated Transcript By Speak

This is the disaster scenario. It’s Black Friday, an electronic store has acquired a massive supply of scarce ninth generation game consoles and to generate buzz. They’re selling them at a massive discount offering buyers an immediate arbitrage opportunity.If they sell the devices on with a three per person limit, people can effectively earn hundreds of dollars just by standing in line. But there’s not really a line rather, it’s more of a mass filling out the width of the pedestrian mall growing and growing in advance of its 9 a.m. opening time. The contracted security only arrives at 8 a.m. They’re able to push through to the entrance and get on a megaphone to say we need you to form an orderly line. There are only 500 consoles, we will not be able to accommodate everyone. So we need you to form an orderly line. This way, the crowd does not comply. The minutes count down. And upon opening time, the security team decides to carefully let small groups in from the front of the crowd, assuring that the store and its staff does not get stormed fast forward 30 minutes and this will lead to a crowd crush. It’s entirely predictable.

The back of the crowd concerned about the fast dwindling supply of consoles will each individually almost subconsciously push forward. The core of the crowd will get compacted down. Individuals will no longer have the ability to move freely and an unlucky few will get asphyxiated.

They quite literally will get crushed so hard that they’re unable to adequately breathe. Their closest way out is into the store leading to a further push forward. But the security tasked with keeping the mask out of the store will brush off the police for entry as an inevitable dynamic of a greedy disorderly crowd. That’s to say each of these three groups have different incentives, the back of the crowd to get the consoles, the security to keep the crowd out and the core of the crowd to simply survive, but they’ll all lead to the same result, an ever escalating crush. But the absolute overwhelming majority of crowds do not end up crushing themselves. So what is it about this rather innocuous, all too believable situation that makes it so theoretically dangerous? Well, it starts with who the people are. You see, there’s an antiquated view that mass gatherings of people almost inevitably evolve into a mindless state that the participation in the collective dehumanizes the individual and makes them more willing to act in a disruptive dangerous way. But more recent research has started to dispel that notion interestingly in the exact situation where you’d expect people to disengage from the collective of good panic and work selfishly in emergencies. People tend to do the exact opposite.

If a fire were to start in an overcrowded building, you might expect people to rush the exits to mindlessly push those in front just to get away from the threats. But that happens remarkably rarely of the 21 major crowd crushes to have occurred so far this decade. Just two involve people running away from a deadly threat. One in Yemen, spurred by an electrical explosion and one in Egypt where worshipers fled to escape a church fire. This is entirely counter intuitive, running away from a fire is clearly a stronger incentive than gaining the right to buy a console. So researchers were curious as to why the frequency of crushes was so much lower in the direction with lower incentive, consider a common anecdote on a normal flight. People barely talk. They’ll sit shoulder to shoulder with their fellow traveler for four or five hours without even acknowledging their presence once. But as soon as a flight gets delayed that changes people start talking, they start problem solving. They get friendly, they’ll even share food. If the flight gets canceled.

This cooperation often extends further and those that were complete strangers just minutes before might decide to work together and share a rental car to drive to their destination. Instead, crowd psychologists have noticed the pervasiveness of this anecdote and they think they have an explanation. It’s all about identity.

When ambling around the airport, there is a little shared identity beyond traveler, which is weak since it is shared by so many. But when a flight gets delayed, the identity shifts and concentrates now it’s distressed traveler. A unique identity shared only by the unlucky few.

What researchers have found is that the greater the degree of shared identity, the greater the degree of operation among a crowd, they’re even able to test this. For example, in a simulated evacuation of a London Underground Station, study, participants were more likely to help a distressed person if that person was wearing the jersey of a football team. The participant was a fan of conveniently, most events involve a shared identity, people amass as fans of a team, followers of a religion, protesters for a cause. There’s almost always a shared identity that justifies the assembly which helps to keep order even when tens or hundreds of thousands of people gather. And this can help to explain the infrequency of evacuation based crushes on a normal day in the London Underground. The mass’s only shared identity is commuter but then there’s an explosion in that moment, identity immediately concentrates and strengthens. Now everyone is a victim of the same rare disaster in the 2005 London underground bombings. Researchers interviewing victims observed a through line of perceived unity among the victims in the moment and countless examples of selfless cooperative behavior even at the risk of personal peril. This is observed in almost any disaster.

There is always a high degree of crowd cooperation far beyond what might often be portrayed in fiction that typically leads to rather orderly crush, free evacuations. But another curious anomaly in crowd crush statistics is that it is quite rare for them to occur during civil unrest during the very activity that defines mob mentality. The only major crush to occur during a riot this decade was 2020 two’s Khan stadium disaster in Indonesia.

But that was caused by a mass of field invading football fans fleeing from police fire, tear gas, not the riots itself, the last major riot related crush before that was also caused by police intervention during 2016 protests in Ethiopia as rare as it is to find a crush during a riot.

It is yet rarer to find one where police intervention is not the cause. This is strange. According to traditional theories, people lose their sense of self during such activities. They act savagely feeding off the energy of the masses and yet somehow the very crowd in which one would expect the highest degree of disorder is able to avoid the worst better than the football or concert or ritual going masses. An explanation comes from the inverse the annual Hajj pilgrimage, one of the world’s largest events where more than 2 million Muslims descend on Mecca to visit the spiritual center of the world’s second largest religion. This is exactly the kind of event where one would expect to see high crowd cooperativeness. After all, compounding the strong shared identities of and pilgrim, all two or 3 million are expected to be in a state of Iran or ritualistic purity of the body and mind to the extent that they’re not even allowed to break branches from trees. And yet this pilgrimage was home to both the 20th and 21st century’s most deadly crowd crush tragedies. Each counting well over 1000 dead. Considering the history, researchers have long used the Hajj as a source of study of crowd psychology.

And one important conclusion came from the very center of the Muslim world. The Kapa, this stone structure is said to be the house of Allah, the single holiest site in Islam. So one of the most significant elements of the Hajj is prayer in the Grand Mosque of Mecca facing the Kaba. There are two main areas in which one can do this. The circular plaza directly surrounding the Kaba or on the balconies above the plaza is probably the best box since it has an unobstructed view of the Kaba. Whereas the balconies have these pillars that obstruct the view. For some researchers questioned how this might impact that all important crowd cooperativeness and therefore surveyed more than 1000 pilgrims to find out as they affected the balconies. The area where there is a more variable experience, unexperienced improved by how much one pushes and shoves to get that best spot. Saw a lower degree of crowd cooperativeness, that’s to say as competitiveness goes up, cooperativeness goes down in riots. Though there is a little competitiveness, there is not a particular something to be gained or lost and therefore there is little incentive to push and shove. Not only that, but there is typically a strong shared identity before tensions escalated.

A group of people gathered together in support of a particular cause. Therefore, riots feature two of the strongest predictors of a lowered crowd crush potential explaining how some of the least organized events manage to avoid the worst. Meanwhile, there’s a particular situation at far more organized events that time and time again has led to the worst. A group of people have spent a good bit of money buying tickets and a good bit of time getting to a stadium to watch a concert or a sporting match or something. But with massive crowds and limited entry throughput, the event is starting and they’re still outside. This exact competitive dynamic led to a 2023 crowd crush in San Salvador, El Salvador, a 2022 crush in Yaounde, Cameroon, a 2019 1 in Antananarivo, Madagascar 2017 in Luge Malawi 2017 in Yen Angola. It is perhaps the most predictable crush scenario that still occurs. But you don’t need to look for examples in developing countries for this particular situation. Just look at concerts. What makes a good concert according to most is also what makes it dangerous. And that’s unassigned seating in a festival setting. Unassigned seating is the norm as seats of any sort are a rarity and VIP tickets.

As opposed to general admission tickets often only provide benefits in the form of easier access and a less dense crowd in tighter indoor and enclosed facilities from small local venues to massive arenas and stadiums. There’s often a split in ticket options, seated tickets and floor tickets while seated tickets are easier on organizers and experts. They’re seen by concert goers and touring bands alike as boring, overly clinical, just low energy, lifeless experiences. Because of this bands and band fans insist on unassigned floor seating where energy is high and crowd interaction is more dynamic and yet, despite all its appeal to everyone, but the organizers general admission seating in the city of Cincinnati was entirely banned from 1979 to 2004.

The 24.5 year ban dates back to a who concert on December 3rd, 1979 a much anticipated show and one that easily sold out the 18,348 unassigned seats available at Cincinnati’s Riverfront Stadium. The concert was supposed to be a celebration, not a watershed moment in crowd control and live event policy. The world over of course, in any unassigned seating environment, there’s inherent competition for the best view. People push their way to the front in this particular situation.

This competition only compounded in order to get in the best position to push their way to the front. Thousands had lined up outside the venue afternoon then gave way to evening, the crowd grew cold waiting. And once the venue finally opened, those at the front were surprised to see only two meager door, swing wives to welcome nearly 20,000 impatience grew and tensions rose across the crowd with the delay and entry. Then at the sound of a late sound check, confused as the beginning of the concert, the dam broke, the push began from the back far outside the venue. But the compounding pressure was felt at the front where people poured through the two open doors with scratches, torn shirts and without shoes. While others ripped at the countless other door still closed, not to cut in line but to release the building pressure at the entrance, the crowd collapsed, then it crushed, leaving 11 dead and dozens injured in the tragedy’s wake. Much was made of the character of those involved, their motives, the substances they had taken and the rock and roll culture that they had as described to this much in the aftermath of crowd related tragedies is a recurrent theme at sporting matches its hooliganism at concerts and festivals.

It’s youth culture at religious events, it’s fanaticism, but at base it’s all bad design. What blaming a selfish crazed crowd doesn’t account for is the disconnect between overmatched and understaffed security ushering nearly 20,000 people through only two doors. It doesn’t account for people rushing those doors, not to get the best spot, but to find enough room to breathe. It doesn’t account for those at the back, shuffling forward, not out of ill will, but a lack of understanding as to the pressure they’re exerting on the front. Blaming the crowd also fails to account for the fact that once crowd density begins to reach dangerous levels, individual agency goes out the window. In fact, at crowd densities that reach higher than five people per square meter, a mark that’s considered high risk for fall and trampling individuals lose the ability to control their own movement and are instead at the whim of shock waves rippling through the crowd. At this point, the principles defining crowd movement are closer to fluid dynamics than anything else. It was a culmination of such factors, the disconnect between security, the front of the crowd and the back of the crowd along with inability once caught in the crush to do anything but move with the shock waves that ultimately informed what’s now known as the who disaster factors that were out of the crowd’s control and factors that stemmed from a poorly prepared venue and overmatched staff.

And it was these factors in their causes that event organizers began to consider in the disaster’s wake while Cincinnati went the furthest with an outright ban on general admission concerts, cities across the US began adopting stricter regulation requirements for crowded events.

The National Fire Protection Association, a nonprofit institution that authors model safety codes for municipal and state level adoption entirely rethought aspects of its life safety code to better account for crowd dynamics. Since the disaster. The landscape of live concert and events has fundamentally changed.

Today, most seats are assigned and those that aren’t, are heavily monitored by crowd managers and security, entry and exit strategies. Meanwhile, are no longer assumed intuitive processes but heavily planned out redundant practice points of emphasis in event planning, but crowd crush on account of entrance issues and unassigned has yet to be solved. In London at the 2020 European football championship final.

Videos of massive unmanageable crowds from outside, the famed Wembley Stadium began surfacing on social media, Ticketless England fans. It turned out had shown up on mass for the final with the idea of storming gates and overwhelming security. Many were successful as 2000 forced their way into the stadium.

More importantly though, while crowds reached dangerous densities in the surge, there were no casualties but it was close. As findings from a following investigation reported that there were some 6000 additional fans ready to charge the stadium, had England pulled off the victory and that the whole event hosted at one of Europe’s finest sporting venues was on the Razor’s edge of turning to a deadly disaster.

More recently in January of 2023 north of London and east of Manchester. Traveling football fans of a more rule disposition arrived at Sheffield Wednesday for an important playoff game. Only to find themselves hopelessly packed into two narrow concourses in the stadium’s visitor end. Following protocol.

The turnstiles were even opened 30 minutes early to relieve pressure at the gates. But once inside the delay of fans identifying and navigating to their seats and the fact that some seats were covered resulted in people piling in the concourses and hoisting crying kids in the air to relieve the mounting pressure. It’s been more than close calls too well, the blame for the 10 deaths and hundreds of injuries at the 2021 as World Festival in Houston, Texas has circulated between the artist Travis Scott, the promoting company like Nation and the Austin based organizer. Score more in the courts of law and public opinion. One factor that’s rather irrefutable was bad venue design. The ill fated festival took place at the energy park home to the NF L’s Houston Texans. This 350 acre complex was designed for events capable of hosting up to 200,000 people for the Astro World Festival. Though this number was lowered by the Houston fire chief to a maximum capacity of 50,000. But the issue here was not the size of the crowd but the layout of the venue broken into two stages. It was expected that crowds would disperse between the secondary and primary stages throughout the event which they did.

But then the music ended on the second stage and Travis Scott delayed his start on the primary as the headliner, the anticipation was high and the crowd was unruly to begin with. And with the delay, the crowd began to grow as festival goers shifted from the west stage to the north because of the location of barricades that were protecting operation tents and sound systems. Though this additional thrust of people wasn’t able to dissipate through the crowd, but instead it pushed an already dense crowd into what became effectively a corral tellingly, all the deaths occurred in this quadrant of the crowd, a function of bad timing and bad barricade configuration.

Of course, with the benefit of hindsight, the design flaws that turn an unruly competitive crowd, a poorly managed event and a largely unregulated aspect of everyday life into horrific deadly traps is easy to identify, but bad design is easier to identify than to fix. Take this bridge complex.

For example, this bridge has existed in some form since the 19 sixties as a the sole conduit that moves Muslim pilgrims by the millions who are staying in the tent city of Mina to the Jara pillars for the sacred practice of stoning the devil with only three pillars to stone though.

And as of this century, over 2 million Muslims a year making the trek to Mecca to take part in this haj ritual. This has been the site of many deadly crowd crushes. In 2004, 251 pilgrims died in a crush at the pillars. In response, the Saudi government altered the shape of the pillars walls to allow for better crowd flow. It helped but didn’t solve the problem. In 2006, another three, 145 died in a crush on the bridge’s entry ramp. Small fixes it appeared just weren’t working. So the Saudi government decided to reconfigure the entire complex for $1 billion. The bridge was widened by 260 ft or 80 m and atop it were now four additional floors in a massive awning to protect from the sun. The project was simply gigantic signaling in no uncertain terms.

Saudi Arabia’s investment in crowd management for one of the world’s single largest annual events with the ability to handle more than half a million pilgrims an hour. Nearly two decades on. Since its completion, the bridge has proved more than capable of accommodating ever growing crowds and yet for as magnificent and expense of the complex is it hasn’t solved. Saudi Arabia’s crowd crush problems just down the road from this complex where pedestrian street 206 and sex with street 223 before then running into a simple t intersection with street 204. Saudi Arabia in 2015 saw its worst crowd crush in the century and likely ever with an estimated 2400 pilgrims dying at an overlooked show point between two commuter routes with an eye shot of the nation’s most impressive crowd control infrastructure in just hours. A problem that seemed fix had taken a different shape, relocated at the infrastructure’s nearest weak point with the haj or astro world or the who concert or really any incident, the cause of the crush always feels just so predictable. They’re all a perfect varying mix of an uncooperative crowd competitive dynamics, constrained architecture and a bit of bad luck. But of course, prediction is always easier.

In retrospect for every deadly festival crush, there are countless rowdy mosh pits having the times of their lives for every doorbuster sale gone wrong. There are far more whose staggering numbers bring the attention, the retailer desires. It is effectively impossible to completely eliminate all risky situations because people love these risky situations. What ultimately makes the difference is rather simple and rather boring, proper planning to mitigate crush potential knowledge of the risk factors and the ability to identify and respond when things get out of control. Almost every incident involves the failure of one of those three steps and therefore will the exact moments when a crush occurs might not be as predictable as it may seem the culpability for why they occur almost inevitably is Saudi Arabia’s crowd control failures at the hajj escalated to a point where they were a legitimate geopolitical problem for the nation.

In the aftermath of the 2400 fatality, 2015, Mina Stampede. Saudi Iranian relations deteriorated significantly due to the number of Iranian nationals killed after a long history of incidents, Saudi Arabia finally realized they had to get a grip on the event and invested a huge amount of money into designing a safer, more efficient haj system, combining infrastructure, technology, psychology and more.

The modern haj is perhaps the most organized event in the world and has run accident free since the 2015 crush. As much as we wanted to cover how this works in this video. There simply wasn’t time. So rather we made a whole episode of our series Logistics of X about the logistics of HAJ like all the episodes of this series that’s exclusive to Nebula, the Crater founded and creator run streaming service that’s designed to be the best home to the stuff we make, we all our videos to their early and ad free and we use the subscription fees to fund big budget Nebula originals.

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How to Control a Crowd was transcribed automatically by Speak. We apologize for any inaccuracies in the transcript. All rights and credit are given to the creator of the video.

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