Warehouse

The Warehouse is where all the items you gather in TrainStation 2 are stored. The amount of materials held in the warehouse can be expanded by upgrading it. The Warehouse becomes eligible for upgrades depending on the population of your city, which is grown by improving the Buildings in your city. Once eligible for an upgrade, the warehouse expansion must be purchased by spending coins. The maximum capacity of the warehouse is currently 21,700, requiring a city population of 111,580.
The population increases needed to make your warehouse eligible for upgrade vary quite widely at the start of the game, and eventually hit a series of three outsized demands when upgrading to 4,200 capacity (820 additional population required), 4,300 capacity (2,020 additional population), and 4,400 capacity (2,138 additional population). These demands extend only to these three specific upgrades, and then become far more reasonable once they are behind you. Another set of outsized population demands begin when upgrading to warehouse level 200, with a capacity of 20,500. This upgrade requires 2,000 additional population, with all further upgrades requiring ever-more-demanding increases in population.
The table below lists all of the currently-available warehouse upgrades, the population needed for each, and how many coins are needed to purchase the upgrade.
 
==Legend==
Symbol	Meaning
 	Population Requirement
 	Cost in Gold Coins
==Warehouse Upgrades==
Upgrade #	Storage Capacity	 	
1 	600 	30 	10
2 	700 	50 	40
3 	800 	100 	50
4 	900 	180 	55
5 	1000 	300 	70
6 	1100 	450 	90
7 	1200 	650 	150
8 	1300 	850 	210
9 	1400 	1000 	215
10 	1500 	1200 	250
11 	1600 	1550 	255
12 	1700 	1840 	290
13 	1800 	2080 	295
14 	1900 	2400 	320
15 	2000 	2750 	325
16 	2100 	3340 	360
17 	2200 	3760 	365
18 	2300 	4310 	370
19 	2400 	4560 	375
20 	2500 	4980 	380
21 	2600 	5400 	400
22 	2700 	5910 	420
23 	2800 	6080 	440
24 	2900 	6320 	460
25 	3000 	6450 	480
26 	3100 	6950 	500
27 	3200 	7120 	520
28 	3300 	7500 	540
29 	3400 	7950 	570
30 	3500 	8010 	580
31 	3600 	8120 	600
32 	3700 	8400 	630
33 	3800 	8640 	640
34 	3900 	8720 	660
35 	4000 	8760 	690
36 	4100 	9200 	700
37 	4200 	10020 	720
38 	4300 	12040 	900
39 	4400 	14178 	920
40 	4500 	14600 	950
41 	4600 	15020 	990
42 	4700 	15430 	1100
43 	4800 	15850 	1115
44 	4900 	16270 	1130
45 	5000 	16680 	1200
46 	5100 	17100 	1215
47 	5200 	17520 	1300
48 	5300 	17940 	1315
49 	5400 	18350 	1330
50 	5500 	18770 	1400
51 	5600 	19190 	1415
52 	5700 	19600 	1430
53 	5800 	20020 	1500
54 	5900 	20440 	1515
55 	6000 	20850 	1535
56 	6100 	21270 	1600
57 	6200 	21690 	1620
58 	6300 	22110 	2000
59 	6400 	22520 	2020
60 	6500 	22940 	2100
61 	6600 	23360 	2125
62 	6700 	23770 	2200
63 	6800 	24190 	2300
64 	6900 	24610 	2325
65 	7000 	25020 	2400
66 	7100 	25440 	2425
67 	7200 	25860 	2500
68 	7300 	26280 	2600
69 	7400 	26688 	2700
70 	7500 	27110 	2730
71 	7600 	27530 	2800
72 	7700 	27940 	2830
73 	7800 	28360 	2900
74 	7900 	28780 	2930
75 	8000 	29190 	3000
76 	8100 	29610 	3030
77 	8200 	30030 	3100
78 	8300 	30450 	3800
79 	8400 	30860 	3840
80 	8500 	31280 	3900
81 	8600 	31700 	4000
82 	8700 	32110 	4200
83 	8800 	32530 	4300
84 	8900 	32950 	4345
85 	9000 	33360 	4400
86 	9100 	33780 	4600
87 	9200 	34200 	4700
88 	9300 	34620 	4800
89 	9400 	35030 	4900
90 	9500 	35450 	5000
91 	9600 	35870 	5100
92 	9700 	36280 	5200
93 	9800 	36700 	5300
94 	9900 	37120 	5400
95 	10000 	37530 	5500
96 	10100 	37950 	5600
97 	10200 	38370 	5660
98 	10300 	38790 	6900
99 	10400 	39200 	7000
100 	10500 	39620 	7200
101 	10600 	40040 	7400
102 	10700 	40450 	7475
103 	10800 	40870 	7600
104 	10900 	41290 	7800
105 	11000 	41700 	8000
106 	11100 	42120 	8200
107 	11200 	42540 	8300
108 	11300 	42960 	8500
109 	11400 	43370 	8700
110 	11500 	43790 	9000
111 	11600 	44210 	9090
112 	11700 	44620 	9200
113 	11800 	45040 	9500
114 	11900 	45460 	9595
115 	12000 	45870 	9800
116 	12100 	46290 	9900
117 	12200 	46710 	10000
118 	12300 	47130 	12100
119 	12400 	47540 	12200
120 	12500 	47960 	12300
121 	12600 	48380 	12600
122 	12700 	48790 	12900
123 	12800 	49210 	13300
124 	12900 	49630 	13600
125 	13000 	50040 	14000
126 	13100 	50460 	14140
127 	13200 	50880 	14400
128 	13300 	51300 	14800
129 	13400 	51710 	14900
130 	13500 	52130 	15200
131 	13600 	52550 	15600
132 	13700 	52960 	15700
133 	13800 	53380 	16100
134 	13900 	53800 	16400
135 	14000 	54210 	16500
136 	14100 	54630 	16900
137 	14200 	55050 	17000
138 	14300 	55470 	20700
139 	14400 	55880 	20900
140 	14500 	56300 	21000
141 	14600 	56720 	21600
142 	14700 	57130 	22100
143 	14800 	57550 	22700
144 	14900 	57970 	23200
145 	15000 	58380 	23400
146 	15100 	58800 	24000
147 	15200 	59220 	24500
148 	15300 	59640 	24700
149 	15400 	60050 	25300
150 	15500 	60470 	25900
151 	15600 	60890 	26000
152 	15700 	61300 	26600
153 	15800 	61720 	26800
154 	15900 	62140 	27400
155 	16000 	62550 	28000
156 	16100 	62970 	28100
157 	16200 	63390 	28800
158 	16300 	63810 	34600
159 	16400 	64220 	34800
160 	16500 	64640 	35000
161 	16600 	65060 	35900
162 	16700 	65470 	36800
163 	16800 	65890 	37700
164 	16900 	66310 	37900
165 	17000 	66720 	38800
166 	17100 	67140 	39800
167 	17200 	67560 	40000
168 	17300 	67980 	40900
169 	17400 	68390 	41900
170 	17500 	68810 	42200
171 	17600 	69230 	43100
172 	17700 	69640 	43300
173 	17800 	70060 	44300
174 	17900 	70480 	45300
175 	18000 	70890 	45500
176 	18100 	71310 	46500
177 	18200 	71730 	46800
178 	18300 	72150 	56400
179 	18400 	72560 	56700
180 	18500 	72980 	57000
181 	18600 	73400 	58500
182 	18700 	73810 	59900
183 	18800 	74230 	60200
184 	18900 	74650 	61700
185 	19000 	75060 	63200
186 	19100 	75480 	63500
187 	19200 	75900 	65000
188 	19300 	76320 	66600
189 	19400 	76730 	67000
190 	19500 	77150 	68500
191 	19600 	77570 	68800
192 	19700 	77980 	70400
193 	19800 	78400 	70700
194 	19900 	78820 	72300
195 	20000 	79230 	72600
196 	20100 	79650 	74200
197 	20200 	80070 	74500
198 	20300 	80490 	91700
199 	20400 	80900 	92200
200 	20500 	82900 	93900
201 	20600 	84960 	94900
202 	20700 	87080 	96000
203 	20800 	89260 	96400
204 	20900 	91500 	98200
205 	21000 	93800 	98800
206 	21100 	96160 	100500
207 	21200 	98580 	101000
208 	21300 	101060	102900
209 	21400 	103600	103600
210 	21500 	106200	105400
211 	21600 	108860	106000
212 	21700 	111580	108000
213 	21800 	114360	108800
214 	21900 	117200	110700
215 	22000 	120100	111400
216 	22100 	123060	113500
217 	22200 	126080	114400
218 	22300 	129160	116400
219 	22400 	132300	117200
220 	22500 	135500	119400
221 	22600 	138760	120400
222 	22700 	142080	122500
223 	22800 	145460	123400
224 	22900 	148900	125700
225 	23000 	152400	126800
226 	23100 	155960	129000
227 	23200 	159580	130000
228 	23300 	163260	132400
229 	23400 	167000	133600
230 	23500 	170800	135900
231 	23600 	174660	137000
232 	23700 	178580	139500
233 	23800 	182560	140800
234 	23900 	186600	143200
235 	24000 	190700	144400
236 	24100 	194860	147000
237 	24200 	199080	148400
238 	24300 	203360	150900
239 	24400 	207700	152200
240 	24500 	212100	154900
241 	24600 	216560	156400
242 	24700 	221080	159000
243 	24800 	225660	160400
244 	24900 	230300	163200
245 	25000 	235000	164800
246 	25100 	239760	167500
247 	25200 	244580	169000
248 	25300 	249460	171900
249 	25400 	254400	173600
... 	... 	... 	...
The maximum possible warehouse capacity is 25400. Achieved with an approximate city population of 255,000 (the figure needs to be clarified).
The graph below shows how increases in population are linked to increases in warehouse capacity. The outsized requirements for the warehouse expansions to 4,200 capacity, 4,300 capacity, and 4,400 capacity are all clearly visible.
The coins needed to purchase warehouse upgrades also increase as the warehouse becomes larger. The coins needed for each upgrade are shown in the graph below.
Category:Game Mechanics