Illustrative: plants and ports, the routes between them and goods moving along; one node is disrupted and its routes stall
Risk Academy, led by the Nexus Consortium · Infrastructure, Energy and Industry · Department of Cities and Infrastructure Systems
Taught in the Nexus stream
Transport, ports and logistics
The discipline covers transport networks, ports, airports, logistics hubs and freight corridors, their exposure to hazards, accidents and disruption, and the role of transport in supply chains and emergency response.
Search any place or open the world; the layers and generators follow transport, ports and logistics on the planet map, the globe and in 3D.
Infrastructure, Energy and IndustryAny placeTwin builder
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).
03Live map
Activity and hazards in the Caribbean
Night-time lights and population, the geography of production and markets, with floods and sea state, over the Caribbean.
The interactive map needs JavaScript; the layer list and sources are below.
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.
Activity and hazards, framed on the Caribbean.Satellite and model products as NASA publishes them, each with its own date. They are indicators, not assessments of any place.
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
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
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). 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 H3 cells where shown (modified). NASA open data
GHRSST Level 4 MUR analyses, NASA Jet Propulsion Laboratory; distributed by the NASA Physical Oceanography DAAC (PO.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). 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
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
Live events: NASA Earth Observatory Natural Event Tracker (EONET); events are indicative and keep their original source links.
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).
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 (5 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
Sea surface temperature anomaly: GHRSST MUR25, NASA JPL PO.DAAC · 12 Oct 2026
True colour: VIIRS NOAA-20 corrected reflectance, NASA LANCE · 13 Oct 2026
04The subject
The subject, methods and measures and debates and bodies
The field and its scope
For port and airport operators, transport planners, freight and logistics managers and emergency planners who need to measure network vulnerability, chokepoint exposure and the cost of rerouting when a link or hub is lost.
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 learners can find and apply their published work; the Academy teaches their use and links to the publisher, and no affiliation is implied.
05The method
From a closed strait to a lost sailing: how rerouting turns distance into days, cost and capacity
A closed chokepoint sends ships the long way round; extra miles at a sailing speed become extra days; extra days on every voyage absorb a share of the fleet, and the share of trade that used the passage decides whether the shortfall is a nuisance or a disruption.
Sources: Jenelius, Petersen and Mattsson, Importance and exposure in road network vulnerability analysis (2006); Verschuur, Koks and Hall, Port disruptions due to natural disasters: insights into port and logistics resilience (2020); Ducruet and Notteboom, The worldwide maritime network of container shipping (2012); Mattsson and Jenelius, Vulnerability and resilience of transport systems (2015).
06Instrument
Transport, ports and logistics
Transport, ports and logistics at a glance
Open, 0
In preparation, 1
Subtopics, 8
Course codes from the curriculum; study levels L1 to L4.
FoundryNXS-GRX systemTransport and logistics disruptions propagate through supply chainsCascades room
NXS-DSS systemDisruption scenarios and rerouting optionsScenarios 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
10Take part
Take part in Infrastructure, Energy and Industry
Start from who you are.
11References
Core references and where to begin
Start with Mattsson, then Berdica, then Jenelius.
12Questions
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; it 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 transport, ports and logistics?
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. For organisations.
Key terms
Term
Network criticality
How much a link or node matters to the performance of the whole transport network.
Term
Chokepoint
A narrow passage, such as a strait or canal, through which a large share of traffic flows.
Term
Intermodal transport
Moving freight in one unit, such as a container, across ships, rail and road.
Term
Modal shift
A change in the share of traffic carried by each transport mode.
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
Related
Around Transport, ports and logistics
Transport, ports and logistics
Prepare with a related course
Open courses in connected disciplines teach the methods this discipline will build on.
Risk Academy 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.
This site uses only strictly necessary cookies to work and to remember your privacy choices. Nothing loads from other companies, and we never sell or share your personal information.
Details
This site uses only strictly necessary cookies to work and to remember your privacy choices. Nothing loads from other companies, and we never sell or share your personal information. We run no advertising. You can review your choices at any time through Privacy choices at the foot of every page.