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. Author manuscript; available in PMC: 2018 Jun 20.
Published in final edited form as: Circulation. 2017 Mar 2;135(25):2454–2465. doi: 10.1161/CIRCULATIONAHA.116.026318

Table 3.

Summary of the sensitivity analysis.

Change in busy time Drone response time improvement goal Region

Toronto Durham Simcoe Muskoka Peel Hamilton Halton York All
Region-specific -30 minutes 1 min. 6 3 5 3 2 2 3 3 27
2 min. 10 5 11 5 4 2 3 5 45
3 min. 14 14 20 6 10 5 5 8 82

-15 minutes 1 min. 6 5 5 3 4 2 4 5 34
2 min. 12 6 11 5 7 2 3 6 52
3 min. 20 15 20 6 10 6 5 8 90

0 minutes 1 min. 6 6 6 3 4 2 4 6 37
2 min. 12 7 12 5 8 2 4 7 57
3 min. 26 16 20 6 11 7 5 9 100

+15 minutes 1 min. 7 6 6 3 4 2 4 6 38
2 min. 12 7 13 5 8 2 5 8 60
3 min. 26 16 21 6 13 8 6 12 108

+30 minutes 1 min. 9 6 6 3 4 2 4 6 40
2 min. 13 7 13 5 8 2 5 8 61
3 min. 26 17 22 6 18 8 8 12 117

Integrated -30 minutes 1 min. 6 2 3 0 4 2 1 4 22
2 min. 11 4 7 1 4 2 4 6 39
3 min. 16 5 7 0 8 4 5 7 52

-15 minutes 1 min. 6 4 3 0 4 2 2 5 26
2 min. 12 5 7 1 7 4 4 7 47
3 min. 26 6 7 0 9 5 5 7 65

0 minutes 1 min. 7 4 4 0 4 2 2 5 28
2 min. 12 6 7 1 7 4 6 8 51
3 min. 26 7 7 0 10 7 5 8 70

+15 minutes 1 min. 8 4 4 0 4 2 2 6 30
2 min. 13 6 8 1 7 4 6 9 54
3 min. 26 8 8 0 14 7 6 9 78

+30 minutes 1 min. 8 4 4 0 4 2 2 6 30
2 min. 13 6 8 1 7 4 6 9 54
3 min. 26 9 8 0 16 7 8 11 85

The numbers represent the total number of drones required for each improvement goal and reset time pair. The number of drone bases is unaffected by the busy time and is omitted for clarity (See Table 2 for results on drone bases). Note that the “0 minutes” case corresponds to the results in Table 2.