nexustandards.com/early-warning · 1 taught
Early Warning and Anticipatory Action
NRS-I2 Risk communication and public-safe dashboards
1standard1discipline
Illustrative: tracers on the Lorenz attractor, a canonical coupled nonlinear system
Risk Academy, led by the Nexus Consortium · Risk Science and Methods · Department of Decision, Behaviour and Communication
How people judge risk, and how behavioural science informs warnings and policy
Risk perception and behavioural science
People judge risk by what comes to mind, whom they trust and what those around them do.
- Courses
- In preparation
- Levels
- In development
- Labs
- In development
- Risk perception and the psychometric paradigm
- Heuristics and biases in risk judgement
- Social amplification of risk
- Trust and credibility
- Protective action decision making
- Behavioural insights in policy
- Collective behaviour in crises
- Ethics of behavioural interventions
Courses in development extend the scope to one further subject: Social cohesion, trust and collective behaviour in crises.
02Maps
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Search any place or open the world; the layers and generators follow risk perception and behavioural science on the planet map, the globe and in 3D.
- Terrain 24 to 2,805 m
- 3 reference earthquakes, M6.2 to M6.6
- Earthquakes M4.5 and above, past week: read live when the 3D twin opens
- USGS ShakeMap intensity contours: read live when the 3D twin opens
Drag to move, right drag or Shift with a drag to turn and tilt, Ctrl with the wheel to zoom. Keyboard: arrows move, Shift with arrows turn and tilt, + and – zoom, 0 resets, V steps through the views, Escape clears.
Flat plan of the same data: relief, the three reference epicentres with magnitude and depth, and the numbers below; the sampler's figure shows one precomputed field with its parameters. The 3D twin opens on devices that can draw it, once its data and code have been checked.
The boundaries, names and designations shown do not imply any judgement on the legal status of any territory, or any endorsement or acceptance of such boundaries. Countries: Natural Earth (public domain).
03The subject
The subject, methods and measures and debates and bodies
The field and its scope
For analysts, warning designers, policy staff and researchers who need to understand how people judge and respond to risk and how behavioural science informs warnings, choices and policy.
Quantities and units
Methods and their limits
Each method is listed with what it assumes and where it fails.
What the field debates
Bodies that set practice, and the data they publish
Bodies and standards are named so that learners can find and apply their published work. The Academy teaches the use of that work and links to the publisher. No affiliation is implied.
04The method
From a warning received to a protective action taken: hearing, believing, trusting and the minutes it all costs
A warning reaches people over time, not at once; those who hear it decide whether to believe it, whether it applies to them and whether they can act, and trust in the source moves each of those; the share who have acted by a given minute is the product of those stages, and lead time is only useful if it covers them.
Sources: Lindell and Perry, The Protective Action Decision Model: theoretical modifications and additional evidence, Risk Analysis (2012); Mileti and Sorensen, Communication of Emergency Public Warnings: A Social Science Perspective and State-of-the-Art Assessment (1990); Slovic, Perception of risk, Science (1987); Siegrist and Cvetkovich, Perception of hazards: the role of social trust and knowledge, Risk Analysis (2000); Kasperson et al., The social amplification of risk: a conceptual framework, Risk Analysis (1988).
05At a glance
At a glance, standards and evidence, research and evidence, what is changing and learning
Risk perception and behavioural science at a glance
risksacademy.comrisk-sciencediscipline
- Open, 0
- In preparation, 1
- Subtopics, 8
Nexus Standards it teaches and relies on
The Nexus Standards the discipline teaches toward, grouped by master standard, with the disciplines that teach each.
nexustandards.com/systemic-risk · 1 taught
Systemic Risks
NRS-P11 Reputational, trust and stakeholder risk
1standard1discipline
Nexus Standards at the AcademyThe Academy proposes how each discipline teaches toward the Nexus Standards. The mapping is open for public review.
Research and tools
Research and preprints as they are published, by discipline, with the faculty's other tools.
The hub lists the newest research and preprints for Risk perception and behavioural science, each with its source and date. Open the research hub
What is changing now
Recent developments in risk perception and behavioural science, each with its source; sources checked on 16 October 2026.
Courses in this discipline
Courses for this discipline are in development. Until they open, study the discipline through the connected courses and open lessons below.
The course catalogue lists every open course of the Academy.
06Console
How Risk perception and behavioural science is taught, as a process you can run
Press Play to run this process from this page's own data.
Process explorer
How Risk perception and behavioural science is taught
14 steps5 stages
07Learning
Achievements, where this is practised, practised in and across the ecosystem
Achievements in this discipline
Course achievements
One for each course with this as its primary discipline, earned when you pass the course's assessed activities.
Department: Decision, Behaviour and Communication
Earn two discipline achievements in the Department of Decision, Behaviour and Communication. In development.
An achievement is a record of the learning completed and assessed here. See how recognition works.
Where the subject is practised
A field platform page on this subject is in development.
The two Foundry systems where it is practised
- FoundryNXS-LAB systemBehavioural experimentsExperiments room
- NXS-DSS systemStakeholder preferences in decisionsDecisions room
Foundry system pages describe what each system and its rooms are designed to do; the courses teach the methods these systems apply.
Across the ecosystem
08Take part
Take part in Risk Science and Methods
Start from who you are.
09References
Core references and where to begin
Start with Tversky, then Slovic, then Fischhoff.
10Questions
Questions, answers and key terms
Is study here free?
Yes. Every course and learning material of Risk Academy, led by the Nexus Consortium, is free to study, self-paced or with a cohort. Ordinary participation has no fee; paid work, internships and fellowships are separate arrangements.
What does completing a course give me?
A completion record: the course, its version, the date and what was assessed, private by default and shared by you. It stacks into discipline, department and programme achievements. A record states what was studied and assessed and does not certify competence. A record is not a licence, a professional title or an employment status.
Where do the data and the places come from?
Every faculty teaches on a twin of a real place built from open data. Each layer carries its provider, licence and date, and every result on the Academy states its source. Maps and figures are indicators for teaching, never an assessment of a place.
How do I take part beyond the courses in risk perception and behavioural science?
Form a competence cell of three to seven people, study a shared pathway, take a supervised assignment in the National Working Groups, or bring a cohort from your institution. Open the page for organisations.
Key terms
Term
Risk perception
The intuitive judgement people make about the likelihood and seriousness of a hazard.
Term
Availability heuristic
Judging how likely an event is by how easily examples come to mind.
Term
Social amplification of risk
The process by which social and media responses make a risk seem larger or smaller than technical estimates suggest.
Term
Protective action
A step people take to reduce harm, such as evacuating or sheltering.
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.
Risk Academy
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Around Risk perception and behavioural science
Risk perception and behavioural science
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Open courses in connected disciplines teach the methods this discipline will build on.