G-P04 · TOPIC · healthcare-and-emergency-serGCRI dossier · service level R0
GCRICritical InfrastructureIn development
Topic dossier · Critical Infrastructure

Healthcare and emergency services

Hospitals, emergency dispatch, ambulances and fire and rescue services must work hardest when other infrastructure fails. They depend on power, water, medical gases, communications, fuel and staff who can reach work. This page sets out how these services lose function in a disaster, how facility safety and dependency are assessed, and what evidence serves the health and emergency authorities responsible for them.

Systems · around this subjectDesign, not a record

Asset criticality register

Healthcare and emergency services · Lifeline system A · Register v5

10 critical assets in flood zoneGCRI · Critical Infrastructure

Critical assets

SS-12ElectricityTier 1Flood 1-in-1009
WTW-2WaterTier 1Flood 1-in-10041
DX-1TelecomTier 2Heat6
H-CampusHealthTier 1Earthquake63
PN-3TransportTier 2Storm surgen/a

SS-12 dependencies

Upstream
Transmission L4, L7
Downstream
WTW-2, H-Campus, DX-1
Restoration target
11 h
Owner
Asset owner

Dependency graph

red: SS-12 and its dependants

Restoration time by sector

050100hours to restore after outage, last eventsPowerWaterTelecomHealthRoads
Asset criticality register: the screen's structure, terms and states for Healthcare and emergency services.Placeholder names and illustrative values; a design, not a record or a live system.

Fig.Asset criticality register. Design wireframe with placeholder names and illustrative values, not a record or a live system.

01In brief

The short answer.

Hospital and emergency service continuity is the ability of hospitals, dispatch centres, ambulances and rescue services to keep working when other infrastructure fails. They depend on power, water, medical gases, communications, fuel and road access, and non-structural damage can stop care even when buildings stand.

02Geography

Environmental exposure in Western Europe.

For healthcare and emergency services, in GCRI's spatial-intelligence reading, the map opens on population density, flood water and true-colour imagery with relief in 3D and true colour from NASA GIBS, framed on Western Europe; 3 further NASA layers wait in the list.

The interactive map needs JavaScript; the layer list and sources are below.

Layers 3

Environmental exposure, for this page

Latest available

NASA GIBS / EOSDIS · ASTER GDEM (METI, NASA) · Blue Marble (NASA) · © OpenStreetMap contributors (ODbL) · Natural Earth

Loading the latest NASA imagery.

Drag to move. Ctrl or ⌘ and scroll, pinch or the buttons to zoom; hover for the values under the pointer; reset returns to the region.

For healthcare and emergency services, in GCRI's spatial-intelligence reading, the map opens on population density, flood water and true-colour imagery with relief in 3D and true colour from NASA GIBS, framed on Western Europe; 3 further NASA layers wait in the list.Satellite and model products as NASA publishes them, each with its own date; indicators, not assessments of any place; claim ceiling INTEGRATED.

Data: NASA GIBS · ASTER GDEM · Blue Marble · © OpenStreetMap contributors · Natural Earth · GDACS · Copernicus Sentinel-2 L2A · NASA HLS S30Sources and licences

  • We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Center for International Earth Science Information Network (CIESIN), Columbia University. 2018. Gridded Population of the World, Version 4 (GPWv4): Population Density, Revision 11. NASA Socioeconomic Data and Applications Center (SEDAC). Licensed under CC BY 4.0. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). CC BY 4.0
  • VIIRS near-real-time products (flood, land surface temperature, snow cover, corrected reflectance), NASA LANCE; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • MODIS land products (vegetation indices, gross primary production, land cover), NASA LP DAAC and LANCE; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • VIIRS Black Marble night-time lights, NASA Goddard Space Flight Center; distributed by the NASA Level-1 and Atmosphere Archive and Distribution System (LAADS DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • ASTER GDEM is a product of METI and NASA (ASTER Global Digital Elevation Model V003, NASA LP DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Made with Natural Earth. Free vector and raster map data @ naturalearthdata.com. Public domain
  • © OpenStreetMap contributors (ODbL), via NASA GIBS (coastlines, boundaries, roads and place names). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). ODbL
  • Blue Marble, NASA Earth Observatory; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Context on the globe and flat map: coastlines, boundaries, roads and place names from NASA GIBS reference layers (OpenStreetMap data, ODbL, © OpenStreetMap contributors); Blue Marble imagery as an optional base; 3D terrain and the elevation read-out from the ASTER GDEM elevation colour index (5 m to 200 m classes, exaggerated for legibility). Boundaries are drawn as published and imply no position on any territory.
  • Globe: MapLibre GL JS 6.9.1, BSD-3-Clause, © MapLibre contributors.
  • Live: GDACS (EC JRC / UN OCHA) Events are indicative, not official warnings.
  • Observed (EO): Copernicus Sentinel-2 L2A (contains modified Copernicus Sentinel data 2026), Microsoft Planetary Computer
  • Observed (EO): NASA HLS S30 (contains modified Copernicus Sentinel data 2026). We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS).
  • Optional layers (14 sources in the layer list: live, forecast, observed and context) print their provider credit on the map and here when switched on; forecasts are model output and derived indices are estimates.

Layers and dates

  • Population density, 2020: Population: CIESIN, Columbia University, Gridded Population of the World v4.11 (2018), NASA SEDAC, CC BY 4.0 · static
  • Flood water, 3-day composite: VIIRS Global Flood Product, NASA LANCE · 14 Oct 2026
  • True colour: VIIRS NOAA-20 corrected reflectance, NASA LANCE · 13 Oct 2026
  • Land surface temperature, day, 8-day composite: VIIRS NOAA-20 Level 3, 8-day, NASA LANCE · 14 Sep 2026
  • Land cover type (IGBP), yearly: MODIS Terra and Aqua land cover (MCD12Q1), NASA LP DAAC · 2024
  • Night-time lights, daily: VIIRS Black Marble (VNP46A2), NASA LAADS DAAC · 12 Oct 2026

03The question

Healthcare and emergency services: how the risk develops.

Essential facility dependencies. The dossier below sets out how the risk develops, what is measured, where the data come from, how it is modelled and who decides.

Mechanism

Hospitals run on other lifelines

Operating theatres, intensive care and laboratories need continuous power, water and medical gases. Backup buys time, and fuel, water storage and supplier contracts determine how much.

Mechanism

Non-structural failure stops care

Buildings may stand while equipment falls, ceilings collapse, pipes burst and lifts stop. Non-structural damage is a common reason for hospitals losing function after earthquakes.

Mechanism

Dispatch depends on networks

Emergency calls, radio and computer-aided dispatch depend on telecommunications and power. Outages and call surges can block access to help.

Mechanism

Access determines reach

Ambulances, staff and supplies need open roads. Floods, debris and traffic cut access to facilities even when the facilities themselves are intact.

04Key terms

Terms used on this page.

Each term as this page uses it. Where a standard-setting body defines the term, the wording follows that body.

TermDefinition
Safe hospitalA health facility that remains accessible and functioning at maximum capacity during and immediately after a disaster.
Hospital Safety IndexA WHO and PAHO tool that rates the structural, non-structural and functional safety of hospitals.
Computer-aided dispatchSoftware that emergency services use to receive calls and assign and track response units.
05Indicators

What is measured, and how well.

Each indicator carries its unit, its cadence, the kind of source behind it and the evidence label a value would carry. No values are shown: a programme supplies them under its own authority.

IndicatorUnitCadenceSource typeLabel
Hospital Safety Index ratingsafety categoryper assessmentHospital Safety Index assessmentsOFFICIAL
Hospitals with backup power for critical areaspercent of hospitalsannualFacility assessmentsREPORTED
On-site water storagehours of normal useper facilityFacility recordsDECLARED
Emergency call answer timesecondsmonthlyDispatch centre recordsOBSERVED
Facilities reachable during flood scenariospercent of facilitiesper scenarioAccess modellingMODELLED
Health facility functionality after eventspercent fully functionalper eventWHO HeRAMS and assessmentsREPORTED
06Canvas

From sources to decisions.

The topic as a computational graph: named sources feed the methods, an evidence review gates the outputs, and the decisions stay with the authorities that hold them.

Pipeline canvas · Healthcare and emergency services as a run graphDesign, not a record
Healthcare and emergency services: asset register to adaptation optionsThe asset register is overlaid on hazard layers to find exposure; vulnerability classes turn exposure into expected damage; assets are ranked and adaptation options costed into the capital plan. Design of the process, not a record of a run.

Fig. 02Nodes carry their type, two metric rows and a state; connectors show what feeds what; dashed frames name the owners; the timeline is the cadence. Design of the pipeline, not a record of a run.

07Sources

Where the evidence comes from.

Named public datasets and institutional records, each with its licence class. Sources by agreement are used only under their terms and never republished.

SourceWhat it givesLicence class
WHO and PAHO Hospital Safety Index guideAssessment method for structural, non-structural and emergency management safetyPublic, WHO terms of use
WHO Health Resources and Services Availability Monitoring System (HeRAMS)Facility functionality and services in emergenciesBy agreement; public summaries
Healthsites.ioLocations of health facilities from OpenStreetMapOpen, ODbL
National master facility listsOfficial registers of health facilitiesLicence per ministry
Emergency services performance statisticsResponse and call handling times where publishedPublic records, licence per authority
08Decisions

Who decides, and what the evidence serves.

Critical Infrastructure prepares evidence. The decisions below are taken by the authorities named, under their own rules, and never by the platform.

Who decidesThe questionEvidence this page serves
Ministries of healthWhich hospitals to strengthen, and in what orderSafety index results; dependency reviews
Hospital managersWhich backup systems and supplies to invest inEndurance hours; non-structural safety evidence
Emergency services authoritiesHow to keep dispatch and response running in outagesDispatch continuity reviews; access analyses

Outputs this topic produces

  • Dependency reviews of hospitals on power, water, gases and staff
  • Access analyses for facilities under flood and debris scenarios
  • Non-structural safety checklists linked to the Hospital Safety Index
  • Dispatch continuity reviews
09Core questions

What experts ask.

  • Which hospital functions stop first when power, water or communications fail?
  • How long can essential facilities operate on their own reserves?
  • How do staff access, supply deliveries and patient transport depend on other lifelines?
  • How do surges in demand during disasters interact with reduced capacity?
  • How are emergency call and dispatch systems protected against single points of failure?
10Mechanisms

Drivers and failure pathways.

A hospital is a dense cluster of dependencies. Life support, imaging, sterilization, refrigeration, laboratory testing and electronic records all need power. Dialysis, sterilization and sanitation need large volumes of water. Records, pharmacy systems and coordination need communications. Medicines, blood, oxygen and food arrive through logistics networks. When several lifelines fail at once, facilities can be forced to evacuate patients, which is itself dangerous.

Disasters both reduce capacity and increase demand. Injured people arrive while staff struggle to travel, and damage to buildings can make parts of a facility unusable. Emergency call centres and dispatch depend on telecommunications and power; their failure delays every response. Disaster experience across many countries has repeatedly shown that backup arrangements, rather than primary systems, determine whether facilities keep working.

Public health systems and their wider risks are studied at Health Nexus.

11Methods and limits

How it is studied.

  1. 01

    Facility dependency assessment

    Structured assessments record each critical function's dependencies, reserves and tolerable outage duration.

  2. 02

    Structural and non-structural safety

    Methods from structural and earthquake engineering assess whether buildings, equipment and utilities remain usable after earthquakes and storms.

  3. 03

    Surge and access modelling

    Simulation from optimization and operations research and urban and transport engineering explores patient flows and staff access when networks are degraded.

  4. 04

    Limits

    Facility data is often confidential, backup systems are tested less than assumed, and demand surges are hard to predict. Clinical judgement remains outside the scope of engineering models.

13Questions

Questions and answers.

What is a safe hospital?
A health facility whose services remain accessible and functioning at maximum capacity during and immediately after a disaster, as defined in the WHO and PAHO Safe Hospitals initiative.
What is non-structural damage?
Damage to elements that do not hold up the building, such as equipment, ceilings, partitions, pipes and lifts, which can stop a hospital working even when its structure is sound.
Why do emergency services depend on telecommunications?
Because calls for help, dispatch and radio communication between crews all run on networks that need power and backhaul links.
Are hospitals usually first in restoration priorities?
Many jurisdictions give them priority, but the order is set by operators and authorities under their own rules.
Does the platform give clinical guidance?
No. It studies the infrastructure dependencies of facilities. Clinical matters remain with health authorities and professionals.
Why do backup systems matter so much?
Because in a wide disruption, facilities run on reserves, and the duration and reliability of those reserves often decide outcomes.
Who reviews coverage of this topic?
Published analysis is designed to be reviewed by a named subject reviewer with relevant engineering expertise, to cite its references and to include independent voices, including operators. Where specialists disagree, the disagreement is reported rather than resolved by omission.
Critical Infrastructure

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