Table 1 Influence of zone size on the number of people within a zone and the minimal sample size m i n n which is needed to detect critical states
| Â | Persons per m2 | min n | ||
|---|---|---|---|---|
| Â | 2 | 4 | 6 | Â |
25 m x 25 m | 1250 | 2500 | 3750 | 320,000 |
50 m x 50 m | 5000 | 10,000 | 15,000 | 20,000 |
75 m x 75 m | 11,250 | 22,500 | 33,750 | 4000 |
100 m x 100 m | 20,000 | 40,000 | 60,000 | 1260 |
125 m x 125 m | 31,250 | 62,500 | 93,750 | 520 |