On this page
Live incidents on this corridor
Live road incidents
A2 South (Vienna-Klagenfurt)Active traffic disruptions on A2 South (Vienna-Klagenfurt), refreshed every 15 minutes from official DATEX II feeds.
Map of active incidents. Colours: red = severe, orange = moderate, green = minor.
| What | Started | |
|---|---|---|
| No incidents match your filters. | ||
Machine-readable feed: /data/incidents-at.json (JSON, refreshed every 15 min)
Peak traffic hours
Weekdays: Vienna outskirts saturated daily 07:00-09:00 and 16:00-19:00
Holiday periods: Summer Saturday departures to Croatian and Italian Adriatic coast (Dutch and German transit), ski-season Carinthian access, Slovenia border weekends
Incident pattern on the A2
Knoten Inzersdorf at A21 junction, Semmering ramp area near Schottwien, Gleisdorf junction with A9, Graz ring approach, Wechselautobahn fog and snow incidents.
Alternative routes
- S6 Semmering (alternative parallel): S6 is actually the same corridor (Semmering autobahn section); no real alternative through Semmering Pass except A2 itself. Old Semmering Bundesstrasse B17 exists but is very slow.
- A1 + A9 Pyhrn route to Carinthia: From Vienna via A1 to Linz then A9 south through Pyhrn pass and Knoten Selzthal to Klagenfurt; longer but useful when A2 closes at Semmering.
2026 construction outlook
- Semmering Base Tunnel under construction (rail; affects nothing road-side directly but reshapes corridor traffic patterns)
- Graz ring expansion continuing
- Wechsel autobahn safety upgrades
Practical tips
- Vignette required; same as A1
- Semmering Pass weather: heavy snow possible Oct-April, check ASFINAG live before
- Croatia transit: budget extra time at Karawanken Tunnel border (queues 30-90 min weekends)
Frequently asked questions
Why is the A2 between Vienna via Wiener Neustadt-Graz and Klagenfurt and Italian/Slovenian border congested?
Main north-south axis, Vienna to Adriatic via Slovenia and Italy. The corridor passes through Vienna, Lower Austria, Styria, Carinthia and serves Vienna, Wiener Neustadt, Graz. Annual cumulative stau: 165,000 km (ADAC Stauatlas 2024 dataset).
When are the worst traffic hours on the A2 in 2026?
Vienna outskirts saturated daily 07:00-09:00 and 16:00-19:00. Summer Saturday departures to Croatian and Italian Adriatic coast (Dutch and German transit), ski-season Carinthian access, Slovenia border weekends.
What alternative routes can I take to avoid the A2?
S6 Semmering (alternative parallel): S6 is actually the same corridor (Semmering autobahn section); no real alternative through Semmering Pass except A2 itself. Old Semmering Bundesstrasse B17 exists but is very slow. A1 + A9 Pyhrn route to Carinthia: From Vienna via A1 to Linz then A9 south through Pyhrn pass and Knoten Selzthal to Klagenfurt; longer but useful when A2 closes at Semmering.
Are there ongoing roadworks on the A2 in 2026?
Currently scheduled major works on this corridor: Semmering Base Tunnel under construction (rail; affects nothing road-side directly but reshapes corridor traffic patterns) Graz ring expansion continuing Wechsel autobahn safety upgrades