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.
Speed limit
The first maximum speed limit was the limit introduced in the United Kingdom in 1861. The highest posted speed limit in the world is , which applies to some motorways in UAE. However, some roads have no speed limit for certain classes of vehicles. Best known are Germany's less congested Autobahns, where automobile drivers have no mandated maximum speed. Measurements from the German state of Brandenburg in 2006 showed average speeds of on a 6-lane section of autobahn in free-flowing conditions. Rural roads on the Isle of Man and the Indian states of Andhra Pradesh, Maharashtra, and Telangana, also lack speed limits.