City of Morgan Hill Public Safety Master Plan
TABLE 5-1: Average Response Times of First Arriving Unit, by Service Area and Call Type (Minutes)
MHFD
Call Type
Dispatch Turnout Travel
Total
Number of Calls
EMS
0.5
1.6
3.6
5.7
1,844
MVA
0.6
1.7
3.9
6.5
135
EMS Total
0.5
1.6
3.7
5.7
1,981
False alarm
0.7
1.9
3.9
6.5
180
Good intent
0.9
1.7
4.6
7.3
26
Hazard
0.8
1.9
4.5
7.2
71
Outside fire
0.8
1.9
3.9
6.7
47
0.8
1.9
4.5
7.2
245
Public service
Structure fire
1.1
2.2
2.1
5.3
3
Fire Total
0.8
1.9
4.3
7.0
572
0.6
1.0
7.5
9.1
5
Automatic aid
Total
0.5
1.7
3.8
6.0
2,558
SSCCFD
Call Type
Dispatch Turnout Travel
Total Number of Calls
EMS
0.7
1.7
6.1
8.5
731
MVA
1.0
2.3
6.0
9.3
264
EMS Total
0.8
1.9
6.0
8.7
995
False alarm
1.2
2.4
5.8
9.3
73
Good intent
1.1
2.4
7.5
11.0
36
Hazard
0.9
2.4
7.5
11.7
40
Outside fire
1.3
3.1
7.2
11.7
77
1.0
1.9
6.9
9.8
61
Public service
Structure fire
1.5
3.3
7.5
12.4
18
Fire Total
1.2
2.5
7.0
10.7
305
0.8
2.3
7.1
10.3
192
Automatic aid
Total
0.9
2.1
6.4
9.3
1,492
The 90th percentile measurement, often referred as a “fractile response,” is a more conservative and stricter measure of total response time. Most fire agencies are unable to meet the NFPA fractile response time standard (60 to 80 second turnout [EMS vs. fire] and 240-second travel time). Simply explained, for 90 percent of calls, the first unit arrives within a specified time. Table 5-2 shows the 90th percentile response times of CAL FIRE units for the various response categories.
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