GCRI · Critical Infrastructure

Critical Infrastructure

Reliability and resilience of lifeline infrastructure and the services on which communities and economies rely. Critical Infrastructure is an established platform of The Global Centre for Risk and Innovation.

STEM methods
12
Canonical methods this field applies
Topics
9
Subject pages in the field
Counterparts
3
Platforms in shared fields across the network
Report series
2
Reports series it contributes to
01Canvas

How the work runs.

Systems · around this subjectIllustrative

Asset criticality register

Lifeline system A · Register v9

7 critical assets in flood zoneGCRI · Critical Infrastructure

Critical assets

SS-12ElectricityTier 1Flood 1-in-10022
WTW-2WaterTier 1Flood 1-in-10030
DX-1TelecomTier 2Heat8
H-CampusHealthTier 1Earthquake95
PN-3TransportTier 2Storm surgen/a

SS-12 dependencies

Upstream
Transmission L4, L7
Downstream
WTW-2, H-Campus, DX-1
Restoration target
16 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 Lifeline system A.Example names and illustrative values; a design, not a record or a live system.

Fig.Asset criticality register: example names and illustrative values, not a record or a live system.

02Frameworks

What the work is read against.

The platform does not set standards. It reads its evidence against the frameworks that competent bodies have adopted, so a finding can be placed where a decision-maker already works.

Framework or standardBodyWhat it sets
Principles for Resilient InfrastructureUNDRRPrinciples and a stress-testing approach for national infrastructure resilience
Critical Entities Resilience DirectiveEuropean Parliament and Council of the European UnionObligations on member states and critical entities to assess risk and take resilience measures
NIS2 DirectiveEuropean Parliament and Council of the European UnionCybersecurity risk management and incident reporting duties for essential and important entities
ISO 55000 series Asset managementInternational Organization for StandardizationPrinciples and requirements for managing physical assets over their life cycle
Sendai Framework target DUnited Nations, with UNDRR as custodianReduce disaster damage to critical infrastructure and disruption of basic services
NERC Reliability StandardsNorth American Electric Reliability CorporationMandatory standards for planning and operating the bulk power system in North America
International Ship and Port Facility Security CodeInternational Maritime OrganizationSecurity requirements for ships and port facilities
Hospital Safety IndexWHO and PAHOAssessment of the structural, non-structural and functional safety of health facilities
Global Infrastructure Resilience reportCoalition for Disaster Resilient Infrastructure (CDRI)Analysis of infrastructure risk and resilience across sectors and countries
03Simulator

A cascade through interdependent networks.

A hazard footprint takes out co-located assets in every layer; fragmentation, dependency between layers and overload of the survivors then spread the failure. The 3D view separates the layers by depth. Teaching model with stated illustrative values, not a prediction. The map on this page shows Western Europe; the model itself is not tied to a place.

Controls

Assets per layer
18
Hazard footprint
8% of area
Assets that depend on another layer
60%
Spare capacity (tolerance)
30%

Readouts

Assets hit by the hazard
20%
Assets still working
41%
Amplification of the initial damage
2.9 times
Steps to settle
2
Numbers, methods and sources
StepTransport working (%)Power working (%)Telecoms working (%)
0837283
1722861
2611150

Methods

  1. Interdependent networks Buldyrev and others (2010), Catastrophic cascade of failures in interdependent networks, Nature 464
  2. Overload cascades Motter and Lai (2002), Physical Review E 66
  3. Betweenness load Brandes (2001), Journal of Mathematical Sociology 25
  4. Multilayer networks Kivela and others (2014), Journal of Complex Networks 2
  5. Infrastructure interdependencies Rinaldi, Peerenboom and Kelly (2001), IEEE Control Systems 21(6)
  6. Uncertainty fan (parameter Monte Carlo) Spiegelhalter, Pearson and Short (2011), Visualising uncertainty about the future, Science 333
  7. One-at-a-time sensitivity (tornado) Saltelli and others (2008), Global Sensitivity Analysis: The Primer, Wiley

Data

The model runs on the teaching values set by the controls. To calibrate it for a place, read it against these admitted layers and series, which this page’s map can draw:

  • Major roads Natural Earth
  • Railways Natural Earth
  • Seaports Natural Earth
  • Airports Natural Earth
  • Urban extents Natural Earth
  • Night lights tonight, outages (VIIRS Day/Night Band) NASA/NOAA VIIRS (Suomi NPP) · register nasa.gibs.context-live-layers
  • Natural events (NASA EONET) NASA EONET · register nasa.eonet.events
A cascade through interdependent networks. Illustrative teaching model: it runs on the values set by the controls, not on measured data. Methods: Interdependent networks (Buldyrev and others (2010), Catastrophic cascade of failures in interdependent networks, Nature 464); Overload cascades (Motter and Lai (2002), Physical Review E 66); Betweenness load (Brandes (2001), Journal of Mathematical Sociology 25).
05Twin and cascade simulator

Model Critical Infrastructure as a system. Run the cascade.

Assembled from the Nexus Standards area profile Critical infrastructure and critical entities: the hazards it names, the systems and sectors that carry the loss, the controls that dampen it and the data that observe it. Choose the components, pick an initiating hazard and step through the cascade. The Map view places the run on an example geography with open data. Every coupling weight is a stated assumption you can change. A teaching model, not a forecast, an assessment or a certification. To model a place of your own choosing, open the full System Builder.

Hazards

  • Dam failure
  • River flood (set off downstream)
  • Flash flood (set off downstream)
  • Mass displacement (set off downstream)
  • Widespread power outage (set off downstream)
  • Water supply shortfall (set off downstream)

Controls

  • NS-0 Constitution and principles
  • NS-3 Risk record UNIs (grammar, legacy crosswalk, allocation authority)
  • NS-9 Contextual UNIs (deployments, instances, programme instances)
  • NS-10 Policies and clauses (machine-readable obligations: definition, binding, evaluation and enforcement)
  • NS-11 Verification and monitoring (evidence, attestations, zero-trust conformance observation)
  • NRS-H61 Hazard family: Cascading failure (NHS-1 sys.cascade)
  • NRS-H94 Hazard family: Systemic cyber events (NHS-1 cyber.systemic-cyber)
  • NRS-H107 Hazard family: Digital infrastructure concentration and monoculture (NHS-1 tech.digital-concentration)
  • NRS-K31 Domain pack profile: Cyber national resilience (DOMAIN-031)
  • NRS-K36 Domain pack profile: Critical infrastructure (DOMAIN-036)
  • NRS-K48 Domain pack profile: Financial system resilience (DOMAIN-048)

Observation

  • OpenStreetMap planet and replication (listed for reference)
  • Global Power Plant Database (listed for reference)
  • NASA Black Marble night-time lights (VNP46) (listed for reference)
  • Global Human Settlement Layer (listed for reference)
  • Damage to critical infrastructure attributed to disasters
  • Number of disruptions to basic services attributed to disasters
  • Proportion of the rural population who live within 2 km of an all-season road

Example geography

  • Europe: 113 hexagonal cells
  • Night lights tonight, outages (VIIRS Day/Night Band), NASA GIBS
  • Surface water through cloud, 30 m (OPERA DSWx-S1 radar), NASA GIBS
  • Rain rate, last half hour (IMERG), NASA GIBS
  • Surface soil moisture (SMAP), NASA GIBS
06Overview

What Critical Infrastructure does.

Critical infrastructure resilience is the ability of lifeline systems such as power, water, telecommunications, transport and health services to keep delivering essential services through shocks and to recover quickly. It depends on design standards, redundancy, maintenance and the dependencies between systems. GCRI prepares evidence; operators, regulators and governments decide.

Who it serves

Its community

Infrastructure operators; engineers; utilities; asset managers; public planners.

How it works

Its methods

Network flow; asset dependencies; service restoration modelling.

What it produces

Its outputs

Lifeline dependency map methods; critical-services continuity notes.

07Risk and response

Coupled risk, applied response.

The sectors urban flood touches and how strongly they depend on each other: what a study has to observe and model together.

Choose a context

ACoupled risk across six sectors6 / 15 relations

Sectors · Urban floodStress

Illustrative: a teaching cascade over teaching values, not measurements.
BApplied response across six pillars11 / 18 handoffs

Pillars · Urban floodKPI

Illustrative applications; the values are published benchmarks, cited in the readout.

In this contextDependence or handoff, heavier is strongerOutside this context

Context

Urban flood

Flooded streets take out substations, pumping stations and clinic access together; drinking water fails when power does.

W · E · I · F · H · B

Risk

Sectors
4 of 6
Relations
6 of 15
Coupling
0.46 share of total

Hover a corner, a line or a row to trace it across both sides.

Route

Applied to urban flood

L · F · U · S · R · A

Response

Pillars
5 of 6
Handoffs
11 of 18
Loops
8 closed

Expected value

What is at stake
$390Ba year at least, in infrastructure disruption costs to households and firms in low- and middle-income countriesWorld Bank, Lifelines, 2019
Return on resilience
4 : 1benefit to costWorld Bank, Lifelines, 2019
Avoided loss
30%less damage with 24 hours’ warning of a storm or heatwaveGlobal Commission on Adaptation, Adapt Now, 2019

Hover a pillar, a line or a row to read how it is applied.

A: a teaching cascade (shock 0.6, gain 0.35, four rounds) over teaching values for a typical city-region, not measurements. B: illustrative applications and the KPI each pillar answers for; values are published benchmarks, cited, not forecasts. Open events: NASA EONET, live.

08Mandate and boundaries

What Critical Infrastructure studies, and what stays with operators and regulators.

Critical Infrastructure, studies lifeline systems, how they fail and how failures cascade between them, and develops dependency and restoration methods with operators under agreed terms. It inspects nothing, regulates nothing, designates no critical entity and operates no asset.

Network diagrams and outage scenarios shown here are synthetic or illustrative. Restricted topology never appears in public outputs.

09Methods and evidence

How Critical Infrastructure is modelled, measured and tested.

The model, its assumptions, its data and its uncertainty, in the form a scientist or engineer would check. Structures follow published methods. The values drawn are illustrative, not findings.

System model

The couplings between the systems in Critical Infrastructure: signs of influence, a reinforcing and a balancing loop, and cross-links where stress jumps.

++−+Critical infrastructureCitiesCommunitiesEconomyR reinforcingB balancing
Causal loop diagram from the page’s systems; signs show the direction of influence. Illustrative structure for a system dynamics or network model, not estimated couplings.

Model, equations and assumptions

The model structure used for Critical Infrastructure, the assumptions it makes and how each is tested.

Risk of element iRi = f(Hi, Ei, Vi, Ci)hazard, exposure, vulnerability and coping capacity
Expected annual lossEAL = ∑k pk · Lkover events k with annual probability pk
Coupled systemsxt+1 = A xt + B ut + εtA carries the couplings, u the shock, ε the error
AssumptionWhy it is madeHow it is tested
Hazard and exposure are independent within an eventKeeps the loss integral tractableCompare with a copula fit on joint records
Couplings are linear near the operating pointLets shocks propagate through APerturb beyond the linear range and compare
Vulnerability curves transfer between placesLocal curves are rarely availableValidate against observed losses where they exist
Inputs
versioned datasets with provenance
Outputs
distributions, never single numbers
Code
released with the model card and tests
Reproduction
same data, code, environment and seed
Standard risk and state-space formulations; the assumptions listed are typical of the method, stated for review, not results.
FAIR guiding principles · GO FAIR and FORCE11W3C PROV · World Wide Web ConsortiumGuidance on consistent treatment of uncertainties · IPCCCEOS Analysis Ready Data · Committee on Earth Observation Satellites
11Geography

Infrastructure exposure in Western Europe.

Night lights, population density and flood water over Western Europe, from NASA GIBS. Each layer carries its own date.

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

Layers 3

Infrastructure exposure, for this page

About this layer
Evidence
Observed
Source
VIIRS Black Marble (VNP46A2) (NASA LAADS DAAC)
Provider
NASA LAADS DAAC
Licence
NASA open data
Vintage
daily; Satellite radiance, corrected for moonlight and atmosphere
Newest at build
2026-10-12
Resolution
about 500 m grid
Uncertainty
Satellite night-time radiance for the date shown; lights are a proxy for electricity use and outages, not a measurement of supply or access.
Reached through
gibs.earthdata.nasa.gov, only after you allow the live map
About this layer
Evidence
Estimated
Source
Gridded Population of the World v4.11 (NASA SEDAC (CIESIN, Columbia University))
Provider
NASA SEDAC (CIESIN, Columbia University)
Licence
CC BY 4.0
Vintage
null; Census-based estimate, static (2020)
Resolution
about 1 km grid
Uncertainty
Census-based estimate of people per square kilometre in 2020, shown as exposure context; not a count of people affected by any hazard.
Reached through
gibs.earthdata.nasa.gov, only after you allow the live map
About this layer
Evidence
Observed (clouds leave gaps)
Source
VIIRS Global Flood Product (NASA LANCE)
Provider
NASA LANCE
Licence
NASA open data
Vintage
daily; Satellite detection; clouds leave gaps
Newest at build
2026-10-14
Resolution
about 250 m grid
Uncertainty
Satellite detection; clouds leave gaps. Satellite or model raster as the provider publishes it. Clouds, swath gaps and retrieval error leave gaps and noise; values are indicators, not measurements at a place.
Reached through
gibs.earthdata.nasa.gov, only after you allow the live map
About this layer
Evidence
Observed
Source
VIIRS NOAA-20 corrected reflectance (NASA LANCE)
Provider
NASA LANCE
Licence
NASA open data
Vintage
daily; Satellite image
Newest at build
2026-10-14
Resolution
about 250 m grid
Uncertainty
Satellite image. Satellite or model raster as the provider publishes it. Clouds, swath gaps and retrieval error leave gaps and noise; values are indicators, not measurements at a place.
Reached through
gibs.earthdata.nasa.gov, only after you allow the live map
About this layer
Evidence
Modelled (latest year GIBS publishes)
Source
MODIS Terra and Aqua land cover (MCD12Q1) (NASA LP DAAC)
Provider
NASA LP DAAC
Licence
NASA open data
Vintage
yearly; Satellite classification; latest year GIBS publishes
Newest at build
2024-01-01
Resolution
about 500 m grid
Uncertainty
Satellite land cover classes for the year shown, including croplands; a classification with known errors, not a farm register.
Reached through
gibs.earthdata.nasa.gov, only after you allow the live map
About this layer
Evidence
Observed (clouds leave gaps)
Source
MODIS Terra EVI (NASA LANCE)
Provider
NASA LANCE
Licence
NASA open data
Vintage
daily; Satellite index; clouds leave gaps
Newest at build
2026-10-13
Resolution
about 250 m grid
Uncertainty
Satellite vegetation index for the 8 days to the date shown, a habitat condition indicator; not a measure of species or biodiversity.
Reached through
gibs.earthdata.nasa.gov, only after you allow the live map

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.

Infrastructure exposure, framed on Western Europe.Satellite and model products as NASA publishes them, each with its own date. They are indicators, not assessments of any place.

Data: NASA GIBS · ASTER GDEM · Blue Marble · © OpenStreetMap contributors · Natural Earth · NASA EONET · U.S. Geological Survey · NASA JPL OPERA DIST-ALERTSources 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 hexagonal 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 hexagonal 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 hexagonal 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 hexagonal cells where shown (modified). doi:10.7927/H49C6VHW. 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 hexagonal 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 hexagonal 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 hexagonal cells where shown (modified). Cite as: NASA/METI/AIST/Japan Spacesystems and U.S./Japan ASTER Science Team (2019). ASTER Global Digital Elevation Model V003. doi:10.5067/ASTER/ASTGTM.003. 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 hexagonal cells where shown (modified). ODbL
  • Blue Marble, NASA Earth Observatory; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into hexagonal 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.
  • Live events: NASA Earth Observatory Natural Event Tracker (EONET); events are indicative and keep their original source links.
  • Live: NASA EONET Events are indicative, not authority warnings.
  • Live: U.S. Geological Survey Events are indicative, not authority warnings.
  • Observed (EO): NASA JPL OPERA DIST-ALERT (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).
  • NASA GIBS: 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).
  • River discharge forecast, 30 days with range (GloFAS via Open-Meteo): Contains modified Copernicus Emergency Management Service information 2026; not a flood warning.
  • Weather data by Open-Meteo.com (https://open-meteo.com/), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).
  • Optional layers (12 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

  • Night-time lights, daily: VIIRS Black Marble (VNP46A2), NASA LAADS DAAC · 12 Oct 2026
  • 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 cover type (IGBP), yearly: MODIS Terra and Aqua land cover (MCD12Q1), NASA LP DAAC · 2024
  • Enhanced vegetation index, rolling 8 days: MODIS Terra EVI, NASA LANCE · 13 Oct 2026

12Reports, standards and contributions

Where infrastructure evidence goes.

Dependency studies are designed for the Strategic Systems series. Asset records would follow ISO 55000 practice and carry identifiers under the proposed Nexus Standards.

  • Operators can share restoration timelines from past events.
  • Engineers can contribute fragility data for local asset types.
  • Researchers can submit interdependency models for review.
13The problem

Lifelines fail together.

Modern societies run on a small number of networks that depend on one another. Water treatment and pumping need electricity. Electricity grids need telecommunications for control and fuel deliveries for backup generation. Telecommunications need power, cooling and physical access for repair crews. Hospitals need all of them at once. Engineers call these lifelines because their loss quickly becomes a threat to health, safety and economic life.

Each network is usually designed to be reliable on its own terms, with redundancy against the failures its operators expect. The danger lies in the links between them. A storm, earthquake, heatwave, cyber intrusion or equipment fault in one system can propagate to others through physical, cyber, geographic and logical dependencies. Outages that begin in one sector are then prolonged by another: repair crews cannot travel because traffic signals are dark, or a substation cannot be restarted because its communications link has lost backup power.

These cascades are hard to foresee because no single operator sees the whole system. Dependencies often sit in contracts, shared corridors and assumptions about backup durations rather than in any map. Ageing assets, rising climate hazards, increasing digitalisation and concentrated supply chains are each changing the shape of that hidden network.

14What the platform does

Science for continuity of essential services.

Critical Infrastructure is designed for infrastructure operators, engineers, utilities, asset managers and public planners who need shared methods for understanding dependencies and restoration.

Dependencies

Lifeline dependency methods

Methods for mapping which services depend on which assets, and how far backup arrangements reach.

Restoration

Service restoration modelling

Network-flow and optimisation methods for the order in which interdependent services can be brought back.

Continuity

Critical-services continuity notes

Evidence notes on how essential facilities keep operating when lifelines fail, with their limits stated.

GCRI does not regulate, certify, license or approve infrastructure. Operators and competent authorities keep every decision about their assets.

15Foundations and counterparts

Grounded in engineering, read across three institutions.

The platform stewards three methods in the STEM Commons: reliability and resilience engineering, sensors, IoT and observation networks and communications and network technology. It also applies systems engineering, network science and contagion, optimisation and operations research, power systems engineering, energy generation, storage and grid technology, structural and earthquake engineering, urban and transport engineering, process and industrial safety engineering and space systems and satellite services. Each is described with its assumptions on the STEM foundation of Critical Infrastructure.

Inside Foundry it works with the NXS-NET (network topology and continuity), NXS-OPS (instruments, sensors and calibration), NXS-SIG (signal, spectrum, timing and PNT), NXS-DSS (decision cases and deliberation) and NXS-NST (civilian common operating picture) systems, and its findings are designed for the Strategic Systems and Scenario and Stress-Test report series. Lifeline cascade and restoration is its planned theme in the annual Universe programme.

Its counterparts look at the same systems through other mandates: Disaster and Crisis Governance at The Global Risks Forum (GRF) convenes the institutions that govern crisis response, Development Finance Nexus at The Global Risks Alliance (GRA) builds shared industry understanding of infrastructure investment risk, and Financial Cyber and Operational Resilience at The Global Risks Alliance (GRA) does the same for operational resilience in finance. All are listed on counterparts across the Consortium.

16Coverage

The areas of critical infrastructure this platform takes on.

Critical Infrastructure studies the lifeline systems that communities and economies depend on: electricity, water and wastewater, telecommunications, transport, health and emergency services, and the buildings people live in. Its pages set out how these systems fail, how failures cascade between them, and the engineering, standards and data used to keep services running and restore them. Every value is labelled by its evidence and every limit stated. It prepares evidence; operators, regulators and governments decide.

Area

Electricity and lifelines

Generation, transmission and distribution, and the other lifelines that stop when power stops.

Area

Water and wastewater assets

Treatment plants, pumping, pipes and sewers, and the energy, chemicals and staff they need.

Area

Telecommunications and cables

Mobile and fixed networks, data centres, submarine cables and the power and routes they rely on.

Area

Transport and logistics nodes

Ports, airports, rail yards, pipelines and warehouses where flows of goods concentrate.

Area

Healthcare and emergency services

Hospitals, emergency dispatch, fire and rescue, and their dependence on other lifelines.

Area

Urban assets and housing

Buildings, bridges and public facilities, and the condition and safety of the housing stock.

Area

Interdependency and cascade

How failure in one infrastructure travels into others, and how restoration has to follow the dependencies.

Area

Transport and mobility

Roads, rail and public transport networks that move people to work, care and safety.

17Grounding

Built on named science, technology, engineering and mathematics.

Every claim on Critical Infrastructure rests on methods with a canonical page in the STEM Commons, so readers can see what a finding depends on and where its limits lie.

Reliability and resilience engineeringSystems engineeringNetwork science and contagionSensors, IoT and observation networksCommunications and network technologyOptimisation and operations researchSpace systems and satellite servicesEnergy generation, storage and grid technologyPower systems engineeringStructural and earthquake engineeringUrban and transport engineeringProcess and industrial safety engineering

See the STEM foundation of Critical Infrastructure

18Cycle

How work moves in this field.

A question becomes evidence, a governed build, an organised community, a controlled test, a reviewed publication and, finally, a decision taken by the competent authority under its own rules.

  1. Question Universe National, regional or institutional priority. Question in Critical Infrastructure
  2. Evidence Foundry STEM foundation of the platform. Evidence in Critical Infrastructure
  3. Build Foundry Foundry. Build in Critical Infrastructure
  4. Organise Universe Nexus ecosystem. Organise in Critical Infrastructure
  5. Test Universe Universe (independent site). Test in Critical Infrastructure
  6. Publish Reports Reports. Publish in Critical Infrastructure
  7. Decide Competent authority Competent authorities and institutions, through NXS-RLS (participants, agreements and handoffs). Decide in Critical Infrastructure
  8. Renew Universe Corrections and the next annual agenda. Renew in Critical Infrastructure

Each step of the cycle in the pillar it runs in; the decision stays with the competent authority, outside the programme.

19Six pillars

How this works across the six pillars.

Critical Infrastructure works through six pillars of one annual programme, led by the Nexus Consortium, with GCRI, GRF and GRA each contributing in its role: explore, experiment and prototype in Labs, build, simulate and prepare in Foundry, convene and test in Universe, codify, correct and apply in Nexus Standards, publish in every format in Reports, teach in the open in Risk Academy.

Select pillars · hover lines18 / 18 handoffs

Route

The whole programme

Every pillar hands its work to another; together they close the year’s feedback loops.

L · F · U · S · R · A

Pillars
6 of 6
Handoffs
18 of 18
Loops
17 closed

Handoffs in play

  • F01Universe → Foundry · Admitted mission becomes a cycle project with a decision caseReadiness preparation
  • F02Foundry → Universe · Core Build Report and go or no-go evidenceControlled build
  • F03Foundry → Reports · Sealed observations and indicator series behind a profileCloseout
  • F04Universe → Reports · After-action and scenario findings for chapters 10 and 13After-action review

and 14 more

F01 to F14 are the recorded handoffs of the programme year, each with the artefact that moves and its phase; R1, R2, R3 and R4 carry work around the ring. A loop counts when every pillar on it is selected. Every pillar is led by the Nexus Consortium.
  1. LabsWhere questions become experiments and prototypes: new methods, data and tools are tried in the open, with their limits on record, before the Foundry builds them, under the Nexus Consortium.Labs
  2. FoundryWhere methods, data and models become reproducible builds, each run with its inputs, version and limits on record.Critical Infrastructure in FoundryFoundry
  3. UniverseWhere a build is tested under controlled conditions with independent evaluators, so a method’s skill is measured, not assumed.Critical Infrastructure in Universeuniverse.nexus
  4. Nexus StandardsWhere methods, identifiers and data schemas are codified in the open and corrected when a test finds a fault.Energy and Critical Infrastructure in Standardsnexustandards.com
  5. ReportsWhere findings are published with their method, uncertainty and evidence class, and corrected as new versions.Critical Infrastructure in ReportsReports
  6. Risk AcademyWhere methods and systems are taught on real data and real places, by working the case, on Risk Academy.Faculty of Infrastructure, Energy and Industry in Academyrisksacademy.com
20Consortium

The same field, seen three ways.

GCRI studies a field as science, GRF governs it and GRA builds shared financial understanding of it. Critical Infrastructure links to its counterparts so that work on one side is visible on the others.

24Questions

Questions and answers.

Who publishes Critical Infrastructure?
The Global Centre for Risk and Innovation (GCRI) publishes Critical Infrastructure and is responsible for what it publishes. GCRI is a research, development and policy institution. It is not a regulator, and it does not certify, license or approve; its findings carry their methods and uncertainty.
Is Critical Infrastructure active?
Critical Infrastructure is an established platform of The Global Centre for Risk and Innovation. Information and enquiries are open today. An enquiry receives a reference and names the next step; applications, payments, compute allocations and registrations open only when their team, terms and review capacity exist.
How can I contribute?
Start with the participation paths or write to the contact form. An enquiry receives a reference; it does not create membership, a role or an assignment.
Where are findings published?
Reviewed outputs appear on the publications page, and contributions to the Reports series are listed on Publish in Reports.
Which values on this platform are real?
Indicator names, units, sources, methods and frameworks are real. Levels in figures and canvases are examples in a design. A programme replaces them with labelled evidence it owns.
How do I report an error?
Use corrections and concerns, or write to the integrity concern form. A correction is recorded as a new version, never a silent edit.
Does the platform assess specific facilities?
No. Its methods and notes describe classes of dependency and restoration problems. Assessments of particular assets remain with their operators and competent authorities.
Will dependency maps reveal sensitive locations?
No. Methods are published at a level that supports understanding without disclosing security-sensitive details, and any restricted evidence stays restricted.
ReportsContribute

Contribute evidence from this page.

Reports is the Consortium’s quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.

GCRICritical InfrastructureStrategic SystemsScenario and Stress-Test
How it works

How Critical Infrastructure works.

Choose a view and press Play to follow the platform’s process, its programme year, the standards it applies and how its findings are published. The outline shows how the work is designed to run, not the status of any decision.

Critical Infrastructure

How Critical Infrastructure works

Platforms · Programme year · Standards · Reports

A platform joins a field to named methods, labelled evidence and the outputs it publishes, without becoming the authority it serves.

  1. 01 Scope

    1. 01Field and familiesStart · The platform leadThe home states the field, its families and who it serves.
    2. 02Topic dossiersRecord · Platform authorsTopics explain the subject with labelled evidence.
  2. 02 Evidence

    1. 03Evidence labelsRecord · GCRIEach value is labelled: observed, published statistics, estimated, modelled, scenario or unknown.
    2. 04MethodsStep · Method ownersMethods come from the STEM Commons, each with one canonical page.
  3. 03 Work

    1. 05Scenarios on the systemsModel · Foundry pillarScenarios run on the Nexus systems, labelled as scenario.
    2. 06Standards that applyRecord · Nexus StandardsThe platform names the standards that apply. A validator report is evidence for review.
  4. 04 Publish

    1. 07EditionsRecord · ReportsFindings are published through Reports with their limits.
    2. 08Authority decidesOutcome · The competent authorityDecisions and execution stay with the government, operator or licensed institution.

Critical Infrastructure home · Platforms · Shared methodsAn outline of how the work is designed to run; it does not report the status of any decision or record.

Take part

Take part in Critical Infrastructure.

Start from who you are. Answer an open call. Or form and lead a competence cell on the Critical Infrastructure platform.

Route

National institutions

Ministries, statistics offices and agencies: a national desk and chapter, and a seat in the working groups. National chapters

Route

Sectors and professions

Operators, regulators, banks, insurers and professional bodies whose work touches Critical Infrastructure. Participate

Route

Learning

Courses and practice, with a record of every course completed. Free to study. Open learning

Route

Standards

Draft, review and adopt the methods and data standards with the working groups. Working groups

Route

Communities and research

Universities, civil society and individual experts: projects, data and review. Write to the team

The Global Risks Index

Every figure on this page is indexed: infrastructure, energy, cyber, Western Europe.

The Index is the Consortium’s indexing system for risk data. Every indicator, hazard, series and country profile carries its Nexus Standards identifier, its source and its licence, so what this page shows can be traced, corrected and reused.

  1. 01 · Sources205 registered sourcesEvery value keeps its source and licence; withheld values are counted.Data and licences
  2. 02 · Nexus StandardsNIS-1 and NHS-1451 indicators, 905 hazards; every record carries a UNI.Nexus Standards
  3. 03 · The Index54 series, 195 country profilesComputed on the standards; no value is published until an edition is released.The Global Risks Index
  4. 04 · This pageCritical InfrastructureMaps, figures and feeds read the Index in the context of infrastructure, energy, cyber and Western Europe.Public API
Sources205registered, each with its licence
Indicators451NIS-1, 106 composites, 20 domain indices
Hazards905NHS-1, crosswalked to UNDRR-ISC HIPs
Series54global, sector, strategic, technology, thematic
Country profiles195one site per country

Series in this context infrastructure, energy, cyber

  1. GSGlobal InfrastructureInfrastructure fragility, service continuity, interdependency of power, water, transport and telecommunications, and investment exposure.NXS-GRX-AR-000067Infrastructure · Energy · Cyber
  2. GLBGlobal SystemsThe state of interdependent global risk: the twenty domain indices aggregated to the world, the five core systems (water, energy, food, health, biodiversity) and their couplings, the global tail register and the gap…NXS-GRX-AR-000002Hazards · Energy · Infrastructure
  3. GSGlobal EnergySupply adequacy, import dependency, grid reliability, affordability, extreme-weather exposure, critical minerals and transition pathways.NXS-GRX-AR-000060Energy · Infrastructure · Cyber
  4. XTCyber and cyber-physical systemsThreats to operational technology, industrial control and cyber-physical systems across energy, water, health, ports and logistics.NXS-GRX-AR-000089Cyber · Infrastructure · Energy

All 54 series · The 20 domain indices

Country profiles Western Europe

Every country profile carries the source and licence of each value. Correct a value or reply

Hazard domains NHS-1

Geodata and API open

Open layers on an equal-area hexagon grid, shown as densities per km² or as symbols: People · GHSL 2025People · WorldPop 2025Built-up areaPortsAirportsRoadsRailwaysRivers and lake centrelines

/api/v1/public/grix · https://nexustandards.com/uni/{uni}
Developers · Data · Made with Natural Earth, Public domain; GHSL and WorldPop, CC BY 4.0

Snapshot of the Index registries pinned 2026-10-23 · 22c6eed. Research and risk-analytics information: not a rating, an official classification, a warning, a benchmark or advice.

Critical Infrastructure

Bring a method, a dataset or a question.

Information and enquiries are open today. An enquiry receives a reference and names the next step; applications, payments, compute allocations and registrations open only when their team, terms and review capacity exist.

The Global Centre for Risk and Innovation

Science · evidence · measurement

Not for profit

Our articles, maps and twins are free to read and free to republish. Readers and partners keep it that way.

Support our work

Who funds us

GCRI is a not-for-profit institution. To ask who funds a piece of work, use the funding questions form.

Independence

Editors and the expert reviewers named on each article decide what we publish. Funders and partners do not review or approve articles before publication.

Licence

Articles: CC BY 4.0. Figures, maps, twins and data: CC BY 4.0. Other uses: ask through the permissions form.