MFD Coverage & Staffing Study | HFFA Local 1463 Maui Division

Layers

Basemap Satellite (Esri Maxar imagery) Dark (presentation mode)

NFPA 1710 travel-time coverage Within 4-minute first-engine travel (240 s) 4 to 8-minute travel (241 to 480 s) Beyond 8 minutes (outside full-alarm benchmark)

Travel time on the real road network (OpenStreetMap via OSRM, driving profile). NFPA 1710 benchmarks are travel only; dispatch handling and turnout time are additional.

Working-fire depth (second company) Travel time for the second-due company: blue within 8 min, orange beyond, red where no second company exists on the island

MFD engines ride 5 with a 4-person minimum (HFFA, 2026-07-05), meeting NFPA 1710 company staffing and the OSHA two-in/two-out entry requirement (29 CFR 1910.134(g)(4)) with the first-due company. The exposure is depth: once that single company commits to a working fire, this layer shows how far away the next one is.

Call volume (county CAD) County-wide incident density

Awaiting county CAD export (requested). This study renders no synthetic incident data.

One company's workload

Engine 6 exhibit loads from data.js.

Coverage summary

Methodology & citations

Standards applied

NFPA 1710 (career departments): 240-second first-engine travel and 480-second full-first-alarm travel, met at the 90th percentile; minimum company staffing of 4 on-duty members (5 to 6 in high-hazard occupancies).
OSHA 29 CFR 1910.134(g)(4) ("two-in/two-out"): interior structural firefighting requires at least two members inside working together plus two standing by outside; effectively 4 on scene before entry, absent a known life rescue.
NFPA 1225 (communications): alarm-handling benchmarks precede travel time and are not represented on this map.
ISO Public Protection Classification: properties more than 5 road miles from a responding fire station are generally rated Class 10, the worst rating for homeowner insurance pricing.
Why NFPA 1710 and not 1720: 1720 covers volunteer and combination departments; MFD is a career department, so 1710 is the applicable deployment standard.
Discipline: this analysis follows the Standards of Cover / community risk assessment methodology used in CPSE/CFAI fire-service accreditation.
Context: the U.S. Fire Administration's NERIS system (replacing NFIRS) makes incident reporting location-based nationally. Geospatial coverage and incident analysis of this kind is the emerging national baseline for fire-service planning.

Data & method

Station locations: Hawaii Statewide GIS Program (EmergMgmtPubSafety, Statewide Fire Stations), queried 2026-07-05.
Drive times: OSRM v5 on the OpenStreetMap road network, driving profile, computed from each station to a ~1.1 km grid; cells more than 400 m from a road are excluded.
Apparatus placements marked "confirm" are inferred from CAD unit IDs and await confirmation.
Engine 6 exhibit: MFD First Due export (762 reports, member-scoped). Used ONLY as a single-company workload sample; it is not county call volume.
No names, phone numbers, or incident addresses appear in this page or its data file.

Working draft for HFFA Local 1463 internal use and discussion with county leadership. Every figure traces to the sources above; items marked pending are absent, not estimated.