How it works
From a static report to a living model
Five steps. The first is data, the last is a report — and unlike a report, the model is still there afterwards.
- 01
Bring in tunnel data
Import from a national road database where one is available — NVDB in Norway is the first supported source — or register the tunnel directly. The system builds a structured profile and scores how complete it is.
- 02
Validate and enrich
Review the imported values, correct what needs correcting, and add what only your organisation knows: barrier condition, inspections, emergency response, operational constraints.
- 03
Run the analysis
The model generates the standard scenarios and calculates risk from frequency, consequence and barriers — showing which inputs drive each result and where uncertainty affects confidence.
- 04
Prioritise measures
See which measures give the greatest risk reduction for the money, across one tunnel or the whole portfolio. Record what is decided and track it to completion.
- 05
Report — and keep the model
Generate a structured assessment report with method and sources cited. The underlying model stays live and becomes the starting point for the next revision.
What you are left with
A report is an output. The model is the asset. After step five the structured model is still there — with its data sources, its assumptions and its history — so the next revision starts from what you already know rather than from a blank document.
Across the tunnel lifecycle
One model, three situations
The same structured model serves a tunnel in daily operation, a tunnel still being designed, and an existing tunnel being brought up to standard. What changes is which questions it answers first.
Tunnels in operation
Keep the risk picture current between revisions, and know what to fix next.
- A living model that is updated as data changes, rather than a report reissued every few years.
- Compliance status that follows the registered data.
- Operational records — inspections, exercises, preparedness and system condition — in the same place as the risk model.
- Prioritised measures with the modelled effect of each.
New tunnels in design
Test the safety concept while it is still cheap to change.
- Compare design options against the same risk model the finished tunnel will be measured by.
- See which requirements a proposed cross-section, length or equipment level actually triggers.
- Document the risk basis for the chosen concept, with its assumptions written down.
- Hand the model over to operations at commissioning instead of starting a new one.
Upgrades and refurbishment
Show what an upgrade buys, before it is committed to.
- Establish the design basis the tunnel was built to, and the gap against the current standard.
- Model alternative upgrade packages and rank them by risk reduction per euro.
- Keep the before-and-after picture so the effect can be shown after the work is done.
- Carry approved deviations and their reasoning through the project.
Talk to us about your tunnels
Tell us what you operate or what you are designing, and we will show you how the model would handle it. You will be talking to people who know tunnels, not to a sales desk.