Autobahn-Tempolimit
The A671 and its speed limit
The A671 runs from Wiesbaden to Mainspitz-Dreieck and is 11.4 km long. Of that, 8.5 km have no speed limit (74.6%) – here are the exact figures, the longest open stretch and where the limit applies.
Route of the A671
The A671 runs from Wiesbaden to Mainspitz-Dreieck.
Along the way it links Mainz.
A major junction on the route is Mainspitz-Dreieck.
The A671 in numbers
| Category | Length | Share as bar |
|---|---|---|
| Total length | 11.4 km | |
| no speed limit | 8.5 km | |
| fixed limit | 2.5 km | |
| no limit recorded | 0.3 km |
The longest open stretch
In one go without a limit you can drive up to 9.2 km on the A671 (per carriageway) – the longest continuous derestricted section of this Autobahn. On the interactive map you can follow exactly where the limit drops and where it returns.
Enter start and destination and see how much of your drive is open – and what that means for travel time.
How the figures are produced
The basis is our own analysis of the freely available OpenStreetMap data. For every section of the A671 we check whether a speed limit is recorded and sum the length by category. “No limit recorded” means the tag is missing in the data – which is not the same as open road. This is a data-based analysis, not an official survey.
Frequently asked questions
Which cities lie on the A671?
The A671 runs from Wiesbaden to Mainspitz-Dreieck and passes, among others, Mainz.
How much of the A671 has no speed limit?
8.5 km of the total 11.4 km, i.e. 74.6%. The remaining 2.9 km have a fixed limit, are gantry-controlled or have no recorded limit.
How long is the longest open stretch on the A671?
Up to 9.2 km in one go – the longest continuous derestricted section on the A671 (per carriageway).
Is the A671 completely derestricted?
No. While 74.6% is open, interchanges, junctions and roadworks carry a limit. No Autobahn is fully derestricted.
Data source: our own analysis of OpenStreetMap speed limits, as of 22 September 2026. Kilometres averaged per carriageway. Not an official survey.