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How many people actually went for BERSIH 4? We try to count!

*Tekan sini untuk baca dalam bahasa Melayu

Now that BERSIH 4.0 over, confirm a lot of people ask this question.

“How many people actually went for BERSIH 4.0?”

Well, BERSIH 2.0 says about 500,000 people in total. On the other hand, our PM believed 20,000 people attended on the first day. The police? They say 25, 000 at 3pm on Saturday and 18,000 at 10pm on Sunday.

But once again, if got so many answers (like 1MDB), it can only mean one thing: No one knows who is right or wrong.

Soooooo what we tried to do was find our own numbers. Yeap, CILISOS tried their best to CONSERVATIVELY count how many people went to BERSIH 4.0.

 

At first, we try manual way…

So initially we tried counting. Yes, the one where you go 1-2-3-4-5. But not count one-by-one all the way from Pasar Seni to Dataran Merdeka la. We tried this instead.

count peopo bersih4

Original image from Says.com

See that red box? So we tried counting the number of people in that box, times length and width, and calculate the number of people for the whole of Jalan Tun Perak.

After that we asked the whole CILISOS office to individually count the number of people in that red box…

finding bersih cilisos

Just look at our confused faces. That’s me in background 2cm away from screen.

….and all send at the same time to our FB chat.

estimate count cilisos

WOI APE NIH????

Okla, Jo-Lyn probably also counted some people from her home planet, but still…

Susah gila ayam kira sampai buta woi! Let Science kowtim la!

So one method fail di. But actually, everywhere in the world also fail one.

“If you count the number of jellybeans in a jar three times, you’ll probably have three different numbers, because people simply cannot count very large numbers without some error. Now, imagine trying to count a shifting mass of heads, some stooping to tie shoes, some sharing the same umbrella, some arriving late or leaving early. Plus, this is one field in which good intentions are rare.” – Rob Goodier, PopularMechanics.com

Nvm, we found something online called ‘The Jacobs’ Method’ by this guy Herbert Jacobs who’s been credited for modernising crowd-control techniques. So we decided to try that instead. His method has been used for everything from political rallies, to concerts, and is generally accepted as the way to count crowds worldwide. How?

jacobs method popular mechanics

INI MACAM. From popularmechanics.com

According to this Jacobs fler, this method has one basic principle: area x density. The density is calculated based on how much space a person takes up in a crowd. And for this there are 3 different types of crowd density (basic density rule).

  1. Light crowd – 0.93 square meter/person
  2. Dense but manageable crowd – 0.42 square meter/person
  3. Mosh-pit density crowd – 0.23 square meter/person
NAH, BACA:
Berapa ramai yang hadir di BERSIH 4 sebenarnya? Kami cuba kira!

Because we had to publish this within 24 hours (and had limited reference footage), we decided to use the 2nd one, where one person takes up 0.42 square meter of space (Cos BERSIH 4 was dense but also well managed la, ended peacefully all right?).

ALSO, here are some other things we took into consideration:

  1. We only considered areas that looked PACKED to the MAX.
  2. We used videos taken at specific times (so people can’t say at this time, this area was crowded…etc). So we found great drone shots of these 2 particular time slots (also widely considered the peak time of BERSIH).
    1. 4-6pm Saturday
    2. Midnight on Sunday before the finale

Things we did not take into consideration:

  1. Sparse areas.
  2. Areas not recorded on camera.
  3. Off-peak people coming and going (HOW TO COUNT THAT ONE WEI SIAO AR!?)

Examples below.

bersih not considered

Unedited image from Says.com

Why? Because we want to give ugaiz a figure conservative enough that kenot be argued. We’d add about 20% to these figures to account for people going in and out not during peak hours, sparse areas, AND off-camera.

With our methodology done, we started to trace out the dense areas (on this really cool website freemaptools.com/area-calculator.htm). The traced out maps and jalan kerja for both time slots are as follows.

CONSERVATIVE ESTIMATE OF PEOPLE at 4-6PM 29th August 

(view the reference drone videos here & here & here)

map 4pm bersih

Total area: 28377.074 m²

Crowd density: 0.42 m² per person

Jalan kerja: 28377.074/0.42

= 67,564 peeps!

CONSERVATIVE ESTIMATE OF PEOPLE at Midnight 31st August 

(view the reference drone video here)

dataran merdeka 12am bersih

Total area: 15473.237 m²

Crowd density: 0.42 m² per person

Jalan kerja: 15473.237/0.42=36841.04

= 36,841 peeps!

 

So why everyone’s figure so off?

Big-Bird-its-this-big

Aiya… is like talking about the size of a guy’s bird la (as in, er.. his pet bird. In a cage). The guy who owns it sure say big, other guys sure say small.

As for our figure? We really should mention once again that OUR number does not include:

  1. Sparse areas.
  2. Areas not recorded on camera.

And our numbers also do not, we repeat, DO NOT tell us how many people in total went for BERSIH 4 over the weekend. It only counts the people in CERTAIN AREAS at SPECIFIC PEAK TIMES.

So we reckon Polis figures DEFINITELY off, and BERSIH’s own figures too probably (unless all off-camera). If we had to estimate, we’d say ADD 20% to our conservative figures, mainly to cover sparsely populated areas, off-peak times and off-camera areas.  Closest estimate (and in our opinion, probably the most realistic) to that was actually MalaysiaKini’s estimate of 100,000 on the first day  because they may have been able to include all the things that we couldn’t (the drone footage is mostly theirs after all).

Do ugaiz agree with that number? Let us know.

[interaction id=”55e5b9861cec712a2e4e6083″]

Not happy? You go count yourself lor.

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