Critical node and link analysis
Each node or link is removed in turn and the loss of connectivity or service is measured, ranking elements by criticality.
GCRI · Binesaziya girîng
Network science represents infrastructure as nodes and links to measure structure, find critical elements and simulate how failures spread. In this field it is used for power grids, water networks, transport and the dependencies between them.
Network science and contagion study how the structure of connections among entities shapes the spread of failures, information and disease. It provides tools to analyse interdependent infrastructure, supply chains and financial pergalan. In binesaziya girîng and cities and built environment, network science identifies critical nodes and pathways through which shocks propagate across sectors. It informs targeted protection and diversification to limit cascades. The canonical description is on STEM Commons.
Each node or link is removed in turn and the loss of connectivity or service is measured, ranking elements by criticality.
Coupled networks represent how failures in one system remove nodes in another, showing cascade paths across sectors.
Alternative paths between sources and critical users are counted, and their independence is checked for shared corridors and components.
Ronahiyên şevê, qebareya nifûsê û ava lehiyê li ser Ewropaya Rojava, ji NASA GIBS. Her qat dîroka xwe digire.
Nexşeya înteraktîf JavaScript hewce dike; lîsteya qatan û çavkanî li jêr in.
Qat 3
Rûbirûbûna binesaziyê, ji bo vê rûpelê
Klavye, dema ku nexşe di fokusê de ye
Ctrl an ⌘ bigire û bizivirîne da ku nêzîk bikî
Ya herî dawî ya heyî
NASA GIBS / EOSDIS · ASTER GDEM (METI, NASA) · Blue Marble (NASA) · © OpenStreetMap contributors (ODbL) · Natural Earth
Wêneyên herî nû yên NASA tê barkirin.
Bikişîne da ku bilivîne. Ctrl an ⌘ û zivirandin, pincandin an bişkojkan ji bo nêzîkkirinê; ji bo nirxên di bin nîşanderê de li ser bisekine; vegerandin vedigere herêmê.
Rûbirûbûna binesazê, li ser Ewropaya Rojava hatiye çarçovekirin.Berhemên peyk û modelê wekî NASA diweşîne, her yek bi dîroka xwe. Nîşander in, ne nirxandinên tu cihî ne.
Qat û dîrok
Datasets and records used by network science and contagion on this platform, with the role each plays and the label its values carry. Sources are listed in the source register.
| Dane | Rol | Nîşan |
|---|---|---|
| Infrastructure network data | Topology | Statîstîkên weşandî |
| OpenStreetMap infrastructure layers | Open topology | ÇAVDÊRÎKIRÎ |
| Dependency inventories | Inter-network links | DECLARED |
| Outage records | Erêkirin | ÇAVDÊRÎKIRÎ |
The screen a team would use to follow this method: its measures, states and decisions. Names are examples and values are illustrative.
Critical infrastructure · Network science for infrastructure · Run R-5075
nodes: assets · edges: dependencies
| N3 | 0.27 | 5 | Critical |
| N4 | 0.19 | 8 | Normal |
| N5 | 0.42 | 11 | Normal |
| N6 | 0.19 | 4 | Normal |
Models are checked by reproducing observed cascades and outbreaks. Robustness of results to missing or uncertain links is tested.
| Kontrol bikin | How it is done |
|---|---|
| Topology verification | Network data are checked with operators where possible |
| Sensitivity to missing links | Results are tested with links added and removed |
| Validation against events | Simulated failures are compared with documented cascades |
Network data are often incomplete or confidential. Static network models may miss adaptive behaviour during cascades.
A Şopa metirsîyê mal û milkên li heman cihî di her qatê de ji holê radike; perçebûn, girêdayîbûna di navbera qatan de û barê zêde yê yên mayî paşê têkçûnê belav dikin. Dîmena 3D qatan bi kûrahiyê ji hev vediqetîne. Modela fêrkirinê bi nirxên nimûneyî yên diyarkirî, ne pêşbînî. Nexşeya vê rûpelê Ewropaya Rojava nîşan dide; model bi xwe bi cihekî ve ne girêdayî ye.
Kontrol
Xwendin
| Gav | Veguhastin dixebite (%) | Hêz dixebite (%) | Têlekomunîkasyon dixebitin (%) |
|---|---|---|---|
| 0 | 83 | 94 | 78 |
| 1 | 56 | 44 | 44 |
| 2 | 11 | 17 | 33 |
| 3 | 11 | 6 | 22 |
| 4 | 11 | 6 | 17 |
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:
Li seranserê şeş stûnan, bi pêşengiya Nexus Consortium
Assembled from the Nexus Standards area profile Critical infrastructure and critical entities: the hazards it names, the pergalan 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.
Metirsî
Pergal û girêdan
Kontrol
NS-0 Destûr û prensîbNS-3 UNIyên tomara xetereyê (rêzimanî, nexşeya veguhastina ji pergala kevin, desthilata veqetandinê)NS-9 UNI yên çarçoveyî (belavkirin, mînak, mînakên bernameyê)NS-10 Policies and clauses (machine-readable obligations: definition, binding, evaluation and enforcement)NS-11 Piştrastkirin û çavdêrî (delîl, erêkirin, çavdêriya lihevhatina zero-trust)NRS-H61 Malbata metirsiyê: Têkçûna zincîrî (NHS-1 sys.cascade)NRS-H94 Malbata metirsiyê: Bûyerên sîber ên pergalî (NHS-1 cyber.systemic-cyber)NRS-H107 Malbata metirsiyê: Kombûn û yekrengiya binesaziya dîjîtal (NHS-1 tech.digital-concentration)NRS-K31 Profîla pakêta domainê: Berxwedana sîber a neteweyî (DOMAIN-031)NRS-K36 Profîla pakêta domainê: Binesaziya girîng (DOMAIN-036)NRS-K48 Profîla pakêta domainê: Berxwedana pergala darayî (DOMAIN-048)Çavdêrî
Erdnîgariya mînakê
Zanista pergalan û modelkirin stewards network science and contagion for the Consortium and reviews how it is applied across platforms.
Model, texmînên wî, daneyên wî û nediyariya wî, bi şeweyê ku zanyar an endezyar kontrol bike. Avahî rêbazên weşandî dişopînin. Nirxên hatine xêzkirin nimûneyî ne, ne encam in.
The couplings between the systems in network science for infrastructure: signs of influence, a reinforcing and a balancing loop, and cross-links where stress jumps.
rêzeya Pergalên Stratejîk 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.
Tu carî daneyên şexsî, hûrgiliyên binesaza hesas an tiştekî ku mafê we yê parvekirinê tune ne neşînin. Beşdarî berî bikaranînê tê nirxandin; şandina wê nivîskarî an mafên edîtorî nade û sponsorî tu carî encamekê nakire.
Agahî û pirs îro vekirî ne. Pirsek referansekê distîne û gava piştî wê dide nasîn; serlêdan, drav, veqetandina hesabkirinê û tomarkirin tenê dema ku tîm, mercên wê û kapasîteya vekolînê hebin vedibin.
Nexşe, dane û jimarên vê malperê ji bo çarçoveyê û agahiyên giştî têne nîşandan. Ew ne şîret, ne pêşbînî û ne hişyarî ne; sînorên agahiyê di Daxuyaniyên Berpirsiyariyê û Daxuyaniyên Daneyê de hatine diyarkirin.
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