Back to archive

Hormuz under threat: tanker traffic and chokepoints

El País · Mar 3, 2026 · 1 day

explainer
stack: [Svelte, Mapbox, shipping data, breaking news]
Map detailing shipping tracks and strategic bottlenecks around the Strait of Hormuz.
As this was a breaking-news piece, we first used Global Maritime Traffic data to quickly establish the strategic role of the Strait of Hormuz, before we could access MarineTraffic data for deeper validation.

Context

This project was produced as a breaking-news explainer to clarify, in one fast-reading visual piece, what a potential Strait of Hormuz blockade implies for oil and gas flows.

My role

  • Cartography
  • Data analysis
  • Frontend development

I handled the cartographic narrative, shipping-data interpretation, and frontend integration, with a priority on clear messaging under severe time pressure.

Data and methodology

I combined vessel-track density with geographic bottleneck framing to show where maritime risk concentrates and how traffic redistributes when threats increase.

The story was built and published within a 24-hour breaking-news cycle, balancing analytical depth with production speed and mobile readability.

Key decisions

  • I prioritized a direct map-first structure so readers could immediately understand the choke point and its regional dependencies.
  • Annotations were kept concise and strategically placed to connect route patterns with concrete export consequences for Kuwait, Bahrain, Qatar, UAE, and Saudi Arabia.
  • Visual hierarchy was simplified to preserve clarity on small screens while still showing high-density maritime movement.

Result

The final piece translated a complex geopolitical risk into an accessible map narrative that explained both local bottlenecks and broader energy implications.

Impact and learnings

  • The project reinforced a repeatable 24-hour workflow for high-stakes geoeconomic explainers where speed, clarity, and geographic precision are equally critical.

Links