About Stauportal.ch
Stauportal.ch shows whether there is a queue in front of the Gotthard road tunnel, and how long it is. It is based on the official traffic reports of the Swiss Federal Roads Office (FEDRO), which we retrieve every 5 minutes, store and display as the live situation and its history. This page explains where the data comes from, how we process it and where its limits lie.
What is Stauportal.ch?
Stauportal.ch is a live traffic service for the Gotthard route on the A2. On the home page you can see the current queue length in both directions, the reported delay, a route diagram of the approach roads and the history over the last few hours and days. There are also background pages, for example the Gotthard traffic forecast, Gotthard closures and Avoiding the Gotthard. The forecast is calculated by a time-series model (TimesFM by Google) from the queue lengths reported over the last 42 days.
Where does the data come from?
The traffic reports come from FEDRO. They are provided through the open data platform opentransportdata.swiss in the European standard format DATEX II. A report contains the location, the direction, the type of obstruction, the start time and, where available, the queue length and the delay.
We have no measuring points of our own along the road, do not count vehicles and do not analyse mobile phone data. Everything shown here has been reported by FEDRO.
How does Stauportal.ch track queues?
Every 5 minutes, our server fetches the current reports and assigns them to five fixed sections. Southbound, these are Erstfeld or Wassen to Göschenen and Amsteg to Göschenen; northbound, Faido to Quinto and Quinto to Airolo. A fifth section collects reports about the tunnel that cannot be clearly assigned to any of these approach sections. Reports are assigned by the place names they contain. The name “Gotthard” on its own is not enough, because that is what the whole A2 from Basel to Chiasso is called.
For each section, we store exactly one value per retrieval, even when no queue is reported. This produces a time series without gaps. For each direction, we show the longest queue among its sections. This is necessary because FEDRO moves a growing southbound queue from the Wassen–Göschenen report to the Amsteg–Göschenen one.
In the history chart, the values appear as a step curve, not as a smoothed line. A value stays valid until the next retrieval replaces it. Interpolating between two retrievals would suggest queue lengths that were never reported.
What do Clear, Slow and Jam mean?
| Display | Meaning |
|---|---|
| Clear | No queue report is active for the section. |
| Slow | Queue or slow-moving traffic reported, under 3 km or with no length given. |
| Jam | Reported queue of 3 km or more. |
The 3 km threshold is our own classification for the colours of the display, not an official definition.
What are the limits of the data?
The display is only ever as current as the latest report. Up to 5 minutes can pass between two retrievals, and FEDRO does not update a report at every moment. A fast-growing queue may therefore be longer by the time you arrive than the figure shown.
Some reports are never marked as cleared in the data stream, even though the queue is long gone. To stop such leftovers from showing up as a permanent queue, we ignore queue reports that started more than 48 hours ago. The downside: a real queue that stayed reported without a break for more than two days would no longer be visible after that.
We use delays exactly as FEDRO reports them. If the figure is missing, the tunnel travel-time display gives a rough estimate of the delay from the queue length. That is a rough guide, not a reported figure.
How is the traffic forecast made?
For each direction, Google’s TimesFM time-series model extends the queue length recorded over the last 42 days: every 15 minutes for the next 6 hours, and every hour for the next 48 hours. Data has been recorded since 26 July 2026.
Once a day, a look back checks how well earlier forecasts matched what was reported later, compared with two simple assumptions: the situation stays as it is now, or it is the same as at the same time a week earlier. This check is also used to adjust the forecast range. No model can predict accidents, breakdowns or closures. The forecast and the jam calendar are on the Gotthard traffic forecast page.
Is Stauportal.ch run by FEDRO or the TCS?
No. Stauportal.ch is an independent service and has no connection with FEDRO, the Touring Club Switzerland (TCS) or the cantonal police. We use FEDRO’s publicly available open data. For binding information on closures and traffic rules, the authorities’ information takes precedence. You can find out more about the tunnel itself on our page about the Gotthard road tunnel.
Who runs Stauportal.ch?
Stauportal.ch is operated by AIVON. Contact details and legal information are in our legal notice, the Impressum (in German). If you spot an error in the display or the texts, please email [email protected].
About Stauportal.ch: frequently asked questions
Where does Stauportal.ch get its Gotthard traffic data?
From the official traffic reports of the Swiss Federal Roads Office (FEDRO), published on the open data platform opentransportdata.swiss in the European standard format DATEX II. Stauportal.ch retrieves them every 5 minutes. It has no measuring points of its own along the road, counts no vehicles and does not analyse mobile phone data.
How up to date is the queue length on Stauportal.ch?
It is as current as FEDRO’s latest report. Up to 5 minutes can pass between two retrievals, and FEDRO does not update a report at every moment, so a fast-growing queue may be longer by the time you arrive than the figure shown.
Is Stauportal.ch an official FEDRO or TCS service?
No. Stauportal.ch is an independent service and has no connection with FEDRO, the Touring Club Switzerland (TCS) or the cantonal police. It uses FEDRO’s publicly available open data. For binding information on closures and traffic rules, the authorities’ information takes precedence.
Information provided without guarantee. Official information from FEDRO and the cantonal police always takes precedence.