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 limits in the United States by jurisdiction
As of October 31, 2017, the speed limit law is being broken into four categories: rural interstates, Urban Interstates, rural divided unlimited access highways, and two lane highways. There are studies being made to increase rural interstate speed limits to 75 mph (121 km/h), urban interstate speed limits to a uniform 65 mph (105 km/h) speed limit, rural divided unlimited access highways to 65 mph (105 km/h) unless the DOT warrants a lower speed, and maintaining a 55 mph (89 km/h) speed limit with the option of increasing the limit to 60 mph (97 km/h) where higher speed limits can be warranted on two lane highways (as of July 1, 2018, no freeways in Arkansas have been increased to 75 mph).