As Many as 1 Million protesters demanding the ouster of South Korea’s President Park Geun-hye

The Associated Press

November 26, 2016

SEOUL, South Korea — South Korea is seeing its biggest wave of street demonstrations in decades, but nobody is sure how many people are taking to the streets each week.

For the fifth straight weekend, masses of protesters occupied major avenues in downtown Seoul on Saturday demanding the ouster of President Park Geun-hye. She is suspected of helping in the criminal activities of a secretive confidante who is accused of manipulating government affairs and extorting companies to build an illicit fortune.

The rally renewed what has become a weekly back-and-forth between police and protest organizers, whose crowd estimates have differed widely. Police said about 260,000 people turned out on Saturday, while organizers saw it at 1.3 million.

There are many challenges for counting the number of protesters. The rallies stretch from midday to late night — some people stay for several hours, others just several minutes. The demonstrators not only gather in open space, but also small alleys and between buildings. Some of them are constantly moving.

A look at how police and protest organizers size the crowds at protests, and also how South Korean scientists and a technology company are exploring new ways to more accurately measure the number of protesters:



While the protest in Seoul on Nov. 12 might have been the largest since South Korea freed itself from dictatorship three decades ago, it’s unclear how big it actually was. Police saw the crowd at 260,000, while organizers say 1 million turned out.

For the police, the aim is to measure the maximum crowd occupying a certain space at any given time so that they could determine the size of police personnel and resources to deploy, according to an official from the Seoul Metropolitan Police Agency, who didn’t want to be named, citing office rules.

Police presume that, when sitting, six people would fill a space of 3.3 square meters (36 square feet), or 1 “pyeong,” the aerial unit commonly used in South Korea. The same area would hold nine or 10 people when standing, police said.

Based on this, police consider the 32,100-square-meter (345,525-square-foot) boulevard in front of the Gwanghwamun palace gate, which has been the center of the protests, as accommodating close to 600,000 people when fully packed.

Critics say the police model understates the actual number of demonstrators because it fails to track people moving in and out of the area during the duration of the protest, and is ill-equipped to measure protesters in non-open space, such as sidewalks and alleys between buildings.



Han Seon-beom, one of the protest organizers, admits outright that their measurements aren’t scientific, but still argues they are more reliable than police numbers.

Organizers seek to track the entire flow of people from the protest’s start to its finish. They collect estimates given by counters deployed at different locations to size up the crowds in each area and update the numbers throughout the duration of the protest.

They try to account for the people on the sidewalks, spaces between buildings and also those moving in and out of nearby subway stations and restaurants, Han said.

The numbers of participants reported by organized groups, such as labor unions, are also put into account.

“What you try to do is to count the first 1,000, like the first 20 rows of 50 people, and that gives you an idea of how many people you are seeing,” Han said.



One South Korean retail analytics company measured the number of protesters by counting the number of smartphone signals.

Zoyi Corp. deployed about 60 people, each carrying a backpack with the company’s Wi-Fi signal-detecting sensor, to the rally on Nov. 19.

They collected Wi-Fi and Bluetooth signals from smartphones for about seven hours from 2 p.m. at 53 spots and found about 369,372 smartphones that had their wireless signals on during the rally.

The company presumed that about half of smartphone users usually leave their Wi-Fi feature on and the other half switch it off, based on a separate survey on smartphone usage. It also assumed that about 20 percent of the smartphone signals were repetition from the same device. Based on this, Zoyi concluded that about 738,700 people joined the rally.

“The limitation of our method is that it can measure only those who kept their phones’ Wi-Fi signals on,” said An Nahyun, the company’s chief operating officer.



Some scientists strived to improve accuracy by drawing methods from their own field. In general, they conclude that the protests must be larger than the police estimates.

Park Inkyu, a particle physicist, counted the number of people by applying a method that scientists use to measure particles in high-energy physics, writing a code that counted the number of candle lights based on pictures from the rally.

Based on his own observation at the past rallies, Park assumed that at least half of the demonstrators did not bring a candle. He added the number of candles in the photo to the possible number of people without a candle and drew a conclusion that about four people were occupying 1 square meter (11 square feet) at the rally.

That means that the number of people occupying avenues, streets and alleys near the presidential office could range from 500,000 to 700,000 when the areas are packed, he said. The limitation of Park’s estimate is that it cannot count the candles hidden behind other people or objects.

Another scientist suggested a way of measuring the crowds’ movement.

Assuming that about 10 percent of the area at the rally is used as passageways for people who are moving, and also assuming that each person moves every 0.3 second, the number of people who came and left the Nov. 12 protest would have been three times larger than the police estimate, according to Won Byung Mook, a science and engineering professor at Sungkyunkwan University.

Won said scientists need more data to make their estimates more precise.

“There are many limitations in this method because it is based on assumption, not on vetted data,” he said.



BBC News

South Korea sees largest protests against President Park Geun-hye

A protest in Seoul against South Korea's president

Protesters held up candles as they rallied against President Park. EPA

Hundreds of thousands have rallied in South Korea for what is thought to be the largest protests so far demanding President Park Geun-hye steps down.

Ms Park is accused of allowing her friend, Choi Soon-sil, to manipulate power from behind the scenes.

The president has apologised twice on national television, but has so far resisted calls to resign.

Organisers said 800,000 had gathered in the centre of the capital Seoul alone by Saturday evening.

They estimate 1.5 million will join by the end of the night, with 500,000 to turn out in other regions.

About 25,000 police are being deployed in the capital, local media report.

The protests, which began five weeks ago, are the largest in South Korea since pro-democracy demonstrations of the 1980s.

Those attending on Saturday came from a cross-section of South Korean society, with farmers, Buddhist monks and university students all involved.

Protesters shout slogans at a protest calling South Korean President Park Geun-hye to step down in Seoul, South Korea
Those attending held banners calling on the South Korean president to step down. Reuters
Farmers join protests against South Korea's president
Farmers were among those to join the protests. Getty Images

“I was watching the news and thought this cannot go on – people really want her to step down but she hasn’t,” one of the protesters, Kwak Bo-youn, told Reuters.

“This is the second time for me to the protests, but the first time for my husband and kids.”

The big question – by BBC’s Stephen Evans in Seoul

Convoys of farmers have been prevented from taking their tractors into Seoul – but the streets have been packed with people, chanting that President Park Geun-hye should step down.

Apart from the corruption allegations, she has become the focus of discontent over the economy. Farmers, for example, spilled sacks of rice on the road in protest at low rice prices.

Courts have permitted demonstrations up to 200 metres from the presidential palace but only before nightfall.

Tens of thousands of police are deployed, with the full panoply of anti-riot gear.

The question is whether the more militant elements will disperse or try to get to the presidential palace.

Ms Park, whose approval rating has dropped to 5%, apologised earlier this month for putting “too much faith in a personal relationship”, and has pledged to co-operate in an official investigation into the scandal.

South Korea’s constitution does not allow a sitting president to be prosecuted, and Ms Park has 15 months left in her term.

But now that prosecutors have directly linked her to the scandal, it is possible she could be impeached for breaking the law.

Prosecutors are expected to bring charges against Ms Choi, along with two former presidential aides. She was arrested earlier this month.

Ms Choi is accused of trying to extort huge sums of money from South Korean companies, and suspected of using her friendship with Ms Park to solicit business donations for a non-profit fund she controlled.


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One Response to “As Many as 1 Million protesters demanding the ouster of South Korea’s President Park Geun-hye”

  1. daveyone1 Says:

    Reblogged this on World Peace Forum.

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