Know the terrain before the first stake is placed

eventTerrain is an innovative web app that gives you fast, reliable terrain‑category assessments for any site — whether you’re setting up a tent, stage, or other temporary structure.

Scan to open on your mobile device# or learn more below.

Scan to open on your mobile device
currently supports locations in:
  - Denmark
  - Sweden (beta for select users)
  - Norway (beta for select users)
#) A GPS enabled device supporting Location Services and an active internet-connection is required. Data charges may apply.

Intuitive

A geo‑located assessment tool designed for industry professionals, enabling on‑site, data‑driven terrain‑category evaluation based on prevailing wind direction.

Increasing Safety

Developed to eliminate subjective judgment and support accurate, site‑specific terrain classification. This ensures correct ballast and anchoring in accordance with engineering requirements.

Compliant

Built on EN standards, the system performs fully Eurocode‑compliant calculations and automatically applies the appropriate National Annex for each supported country.

Fast

Optimized for speed, using a lightweight implementation of ndp.dk’s second‑generation architecture, ensuring rapid access without compromising capability or stability.

accuracy

Manual validation across more than 500 randomly selected locations demonstrates an accuracy level of at least 90%. This extensive verification confirms the reliability of the methodology and ensures consistent terrain‑category assessments.

Independent

All underlying data is sourced exclusively from open datasets provided by national agencies in supported countries, as well as European Union sources.

Data driven

Each angular sector is analysed using 161 elevation points to calculate the orographic factor, ensuring a detailed representation of local terrain effects. Terrain‑category classification is performed on a 50 m grid, providing a consistent, high‑resolution basis for evaluating site‑specific wind exposure.

Secure & Light-weight

Built with privacy at its core, the system does not access device data or collect personal information. It runs without heavy installations and avoids unnecessary data collection, ensuring a secure and efficient user experience.