population of city = #food resources?

[teturkhan]

Does anyone know the ratio of how much food = city growth?

I want to create a city of 7 million. So I am trying to figure out the total food output needed in the city’s surrounding squares to get it to grow to that level.

Thanks,

TETurkhan

[vondrack]

Re: population of city = #food resources?

Every citizen consumes two food. For a city to grow, there must be food surplus, doesn't matter how big (the bigger, the faster growth). After the per-turn surpluses accumulate into a certain treshold level (this threshold level progressively gets bigger as the city grows), the accumulated food is "used up" (half used up, if there is a granary in the city) and a new citizen is born. Does this help?

[teturkhan]

yeah thanks but...

I know how it works, just needed to know what the total output of the surrounding areas would have to be to get the desired population...

I am creating a scenario and other than guessing or sitting there watching the city grow..

[Flight]

u wanna know what the ratio of population points to number of people is.

i dunno

[teturkhan]

freakin guy



read your post.. I was like yeah.. exactly!!

"I dunno"

sheeshh.. why bother posting even!

Need to make a city 7 million large
the problem is 1 citizen equals more and more population as the number gets higher...
in the begining its 1 citizen is equal to 25000 population, then later 50000 and it keeps going up...

so where do you go?
if I take the 50000 figure, that means I need 140 citizens!!! 280 food output - thats insane!!!

[Flight]

i was just clarifying so ppl like vond wouldnt get confused

it seems a bit strange for the FIRST guy to be 250k, when in reality it would be closer to 5k
i'd have thought it would get larger the bigger the city got, to show the population explosion type stuff

nevermind

[vondrack]

Originally posted by Flight
i was just clarifying so ppl like vond wouldnt get confused

Well, I really had troubles understanding the original question...

Let me see... my last Regent game ended up in an awesome situation. I had a big continent all for myself, full of really BIG cities. Here is a couple of numbers...

Memphis, 34 citizens, population of 5,976,000
Beijing, 31 citizens, pop 4,975,000
Bizen, 30 citizens, pop 4,680,000
Toyama, 30 citizens, pop 4,680,000
Ise, 29 citizens, pop 4,392,000
Fukushima, 27 citizens, pop 3,812,000
Satsuma, 27 citizens, pop 3,806,000
Kagoshima, 26 citizens, pop 3,540,000
Hyderabad, 26 citizens, pop 3,520,000
Asyut, 26 citizens, pop 3,558,000
Hakodate, 25 citizens, pop 3,300,000
Nagoya, 25 citizens, pop 3,271,000
Xinjian, 24 citizens, pop 3,031,000
Abydos, 24 citizens, pop 3,025,000
Nagasaki, 24 citizens, pop 3,024,000
Nara, 24 citizens, pop 3,013,000
Thebes, 24 citizens, pop 3,002,000
Yokohama, 23 citizens, pop 2,790,000
Kyoto, 23 citizens, pop 2,760,000
Shimonoseki, 23 citizens, pop 2,785,000
Pi-Ramesses, 23 citizens, pop 2,778,000
Izumo, 22 citizens, pop 2,565,000
Edo, 22 citizens, pop 2,554,000
Matsuyama, 21citizens, pop 2,354,000
Tsingtao, 21 citizens, 2,312,000
Tokyo, 21 citizens, pop 2,310,000
Elephantine, 20 citizens, pop 2,112,000
Karachi, 19 citizens, pop 1,959,000
Jaipur, 19 citizens, pop 1,959,000
Bangalore, 19 citizens, pop 1,946,000
Shanghai, 19 citizens, pop 1,929,000
Sapporo, 17 citizens, pop 1,575,000
El-Amarna, 17 citizens, pop 1,572,000
Osaka, 17 citizens, pop 1,560,000
Calcutta, 16 citizens, pop 1,408,000
Delhi, 14 citizens, pop 1,109,000
Bombay, 14 citizens, pop 1,102,000
Byblos, 14 citizens, pop 1,100,000
Alexandria, 14 citizens, pop 1,074,000
Suo, 14 citizens, pop 1,070,000
Heliopolis, 14 citizens, pop 1,050,000
Hieraconpolis, 12 citizens, pop 800,000

Oops... sorry for the long list, I was sorta thinking aloud, sorting things out for myself... it seems that every new citizen represents a certain extra percentage of population, something like 10-15% of the previous threshold level maybe... looking at the top part of the list, I would say that a 7,000,000 city would have 36 or 37 citizens...

Have something else to do right now, but I will try some number crunching later this night or tomorrow, if time permits... to see if there is an exact formula...

BTW, I would be surprised if there was nobody figuring the formula before, although I can't remember seeing it anywhere... can someone save me (and teturkhan) from unnecessary number crunching?

[teturkhan]

not sure of the formula but I got a good idea

I think your right, it is a percentage of the total, probably around 10-15% like you said.

Here are some numbers I was able to figure out:

12.75 million population - 50 citizens - 255 000/citizen
8.2 million population - 40 citizens - 205 000/citizen
4.65 million population - 30 citizens - 155 000/citizen
2.1 million population - 20 citizens - 105 000/citizen
550 000 population - 10 citizens - 55 000/citizen
150 000 population - 5 citizens - 30 000/citizen

You can see the pattern from this and figure it out...
(yeah it was the morning, mind as well of asked the question in a different language )

[DRoseDARs]

Population Box # = Population

Note : The "actual" population sometimes varies in relation to a given Population Box # by a few thousand citizens. Example: 1 = 48,000 & 2 = 40,000. Additionally, it may fluctuate each time you load a particular savegame. I do not know why that is, but I do know that it is annoying...

1 ~ 48,000
2 ~ 40,000
3 ~ 71,000
4 ~ 112,000
5 ~ 160,000
6 ~ 222,000
7 ~ 290,000
8 ~ 370,000
9 ~ 469,000
10 ~ 589,000
11 ~ 680,000
12 ~ 808,000
13 ~ 938,000
14 ~ 1,090,000
15 ~ 1,220,000
16 ~ 1,390,000
17 ~ 1,576,000
18 ~ 1,756,000
19 ~ 1,930,000
20 ~ 2,146,000
21 ~ 2,350,000
22 ~ 2,584,000
23 ~ 2,799,000
24 ~ 3,040,000
25 ~ 3,280,000
26 ~ 3,530,000
27 ~ 3,822,000
28 ~ 4,098,000
29 ~ 4,389,000
30 ~ 4,690,000
31 ~ 5,000,000
32 ~ 5,310,000
33 ~ 5,648,000
34 ~ 5,990,000
35 ~ 6,338,000
36 ~ 6,706,000
37 ~ 7,070,000
38 ~ 7,440,000
39 ~ 7,819,000
40 ~ 8,237,000
41 ~ 8,652,000
42 ~ 9,054,000
43 ~ 9,511,000
44 ~ 9,951,000
45 ~ 10,372,000
46 ~ 10,830,000
47 ~ 11,300,000
48 ~ 11,800,000
49 ~ 12,290,000
50 ~ 12,800,000

[teturkhan]

strange

yeah that is strange... my numbers are a bit off from yours..

still its very minimal - btw thats great you got it all worked out, should post it in the custom forum - very useful for people making mods, world history ones in particular...

[DRoseDARs]

Re: strange

Originally posted by teturkhan
should post it in the custom forum - very useful for people making mods, world history ones in particular...

OK, consider it done!

[Flight]

thats kidna cool to know, thx DRoseDARs

glad i could help vond

[Provost Harrison]

There is an equation to calculate the population of a city from it's number of citizens:

Where x=no of citizens in city, the population=5000(x²+x).

So we find that for a population of 7000000 we have a population of 37 at it's nearest (7030000 in fact) which would require double the number of citizens to be able to feed it, ie, would require 74 food harvested from the surroundings.

So for the biggest city possible: we have a city surrounded by irrigated/railroaded flood plan with wheat, but 2 base square food. This gives us 3+1+1+2=7 per square. So total possible food harvesting is 7*20+2=142 food, which equates with a city size 71. If you managed to get a city of this size, the population would be 26 280 000, a pretty big city

[DRoseDARs]

Provost, would you mind helping me with my college algebra class this semester?

[Provost Harrison]

Hehe, never mind me, if you go to the OT, the place is full of the reincarnations of Einstein and Newton