Autobahns of Austria
Unlike German autobahns, on Austrian autobahns a general speed limit of 130 km/h (81 mph) is set, although as of August 25, 2018, the FPÖ government has been going on a trial for a possible speed limit increase to 140 km/h (87 mph) on the Autobahn 1 freeway. They may only be used by powered vehicles that are designed to achieve at least . While on the motorway voluntary stops, U-turns and backward driving are prohibited.
Bundesautobahn 17
Although the A 17 is only 45 km long, it has quite a lot of larger bridges and tunnels compared to other German autobahns. These are:The designation of A 17 was originally given to a post-reunification Autobahn corridor planned to run from the A 4 near Bautzen to the Polish border at Zittau (actually very close to the German-Polish-Czech tripoint). Planning for this incarnation of the A 17 was shelved in the 1990s before any fixed route for this Autobahn was established, and the designation was given instead to the southernmost section (then being planned) of the A 13.