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Layer: Fire Response Time (ID: 0)

Name: Fire Response Time

Display Field: STATIONNO

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Description: Kamloops Fire Rescue (KFR) 10 Minute Response Time CriteriaThe following describes the criteria, assumptions and data limitations that were used to create the Fire Response Areas in the GIS database.The resultant fire response areas are intended to assist the Building department in determining whether any new buildings are inside or outside the 10 minute response time areas, as per new BC Building Code requirements:_________________________________________________________________________British Columbia Building Code 20123.2.3.1. Limiting Distance and Area of Unprotected Openings3.2.3.1 8) A limiting distanceequal to half the actual limiting distanceshall be used as input to Tables 3.2.3.1.Band 3.2.3.1.C, where a) the time from receipt of notification of a fire by the fire department until the arrival of the first fire department vehicle at the buildingexceeds 10 min in 10% or more of all fire department calls to the building, and b) any storeyin the buildingis not sprinklered. (See Appendix Aand A-3.2.3.in Appendix A.)A-3.2.3.1.(8)Intervention Time and Limiting DistanceThe total time from the start of a fire until fire suppression by the fire department depends on the time taken for a series of actions. Sentence 3.2.3.1.(8)is only concerned with the time from receipt of notification of a fire by the fire department until the arrival of the first fire department vehicle at the building. It specifies a 10-min time limit which must be met in more than 90% of the calls to the building served by the fire department. This reliability level and provision for flexibility is essentially consistent with NFPA 1710, “Organization and Deployment of Fire Suppression Operations, Emergency Medical Operations, and Special Operations to the Public by Career Fire Departments.”Clause 4.1.2.1 of NFPA 1710establishes “time objectives” for fire incidents as follows: 1 min (60 s) for turn-out of responders after receipt of notification of a fire, and 4 min (240 s) or less for arrival of the first arriving engine company at a fire suppression incident and/or 8 min (480 s) or less for the deployment of a full first alarm assignment at a fire suppression incident. The standard requires that the fire department establish a “performance objective” of not less than 90% for each response time objective. This reliability level is referred to in NFPA 1710as a “performance objective.” Where the 10-min limit cannot be met by the fire department at least 90% of the time, Sentence 3.2.3.1.(8)specifies that a value corresponding to half the actual limiting distance be used in requirements that depend on limiting distance to define other criteria. For new subdivisions, legal agreements may be made for the construction of fire stations to serve those areas. The fire department response time in those subdivisions may temporarily exceed 10 min until the fire station is constructed.9.10.14.3. Limiting Distance and Fire Department Response1)Except for the purpose of applying Sentences 9.10.14.4.(2), (3), (8)and (9), and Sentences 9.10.14.5.(3), (8)and (12), a limiting distanceequal to half the actual limiting distanceshall be used as input to the requirements of this Subsection, where a) the time from receipt of notification of a fire by the fire department until the first fire department vehicle arrives at the buildingexceeds 10 min in 10% or more of all calls to the building, and b) any storeyin the buildingis not sprinklered_________________________________________________________________________KFR ten minute response time is defined as the start of an emergency call when it is first received by Kamloops Fire Rescue Dispatch, to when the first KFR apparatusvehicle has arrived “On Scene”.The 10 minute response time is determined by using an average time of 2.5 minutes (150 seconds) to receive the call and for the emergency vehicle to leave the station, and a 7.5 minute drive time as derived from the GIS street centerline data using the FDM GIS Analyst application. The 2.5 minute/150 second call time incorporates an average KFR Dispatch call handling time for a structure fire as well as the time it takes for emergency responders to leave a station in full turn-out gear.The response time areas that have been created have been done from only all “career”Fire Stations: these are Fire stations 1, 2, 3, 4 and 7. Fire stations staffed by volunteers are not being considered at this time and are therefore not included in these response areas.The FDM GIS Analyst application begins at each fire station and traces out along connected street centerline segments utilizing speed limits (as derived from the street centerline data) and turn impedances (5 seconds for right turns; 10 seconds for left turns). This continues until the specified amount of time is reached.For each street centerline segment determined to be included within the specified response time, 50 metre buffer areas are created. These buffer areas are then merged into a single area representing the extents of the response time area.The response time area extents have been altered to better represent the real-world 10 minute response areas by taking into consideration local knowledge or data limitations (such as long Street segments where a portion of a segment is inside a 10 minute response time area and the remainder is not).The finished response time areas have been cross-referenced for accuracy against the last 6 months of actual KFR structure fire (residential and commercial only) response data. Over time it is expected that the accuracy of the 10 minute response time areas will improve as more incident data is collected and compared to the response areas. Wherein the extents of the response time areas are calculated, they will be manually adjusted to be conservative and err on the side of caution –that is to say, they will be trimmed back to be closer to a station than further away.KFR is committed to continually improve the overall accuracy of these response time zones.

Service Item Id: c22fdb720dc840e094570a9d10e89d41

Copyright Text: City of Kamloops GIS Section

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