what is the speed limit on i 90 in south dakota
Interstate 90 in South Dakota Since April 2015 the speed limit is 80 miles per hour (130 km/h), except it is 65 miles per hour (105 km/h) between I-229 and Marion Road in Sioux Falls; or through Rapid City. The speed limit remains 75 miles per hour (121 km/h) between Rapid City and the Wyoming state line.
Speed limits in the United States by jurisdiction Wyoming's highest speed limit is 80 mph, found on its Interstate highways, and 70 mph on its four lane divided highways. The speed limit for school zones is 20 mph, 30 mph in urban districts and residential areas, 70 mph for other paved roads, and 55 mph for unpaved roads.[208]On I-80 in Evanston and Cheyenne, I-25 in Cheyenne and Casper, and I-90 in Buffalo, the speed limit is 65 mph.
Autobahn Germany's autobahns are famous for being among the few public roads in the world without blanket speed limits for cars and motorcycles. As such, they are important German cultural identifiers, "... often mentioned in hushed, reverential tones by motoring enthusiasts and looked at with a mix of awe and terror by outsiders."[1] Some speed limits are implemented on different autobahns.[22]
National Maximum Speed Law Congress lifted all federal speed limit controls in the National Highway System Designation Act of 1995, returning all speed limit determination authority to the states effective December 8, 1995. Several states immediately reverted to already existing laws. For example, most Texas rural limits that were above 55 mph (90 km/h) in 1974 immediately reverted to 70 mph (115 km/h), causing some legal confusion before the new signs were posted. Montana reverted to non-numerical speed limits on most rural highways, although its legislature adopted 75 mph (120 km/h) as a limit in 1999; as a result, according to Insurance Institute for Highway Safety researcher Anne McCartt, "What's impressive is the huge drop in the percent of vehicles going very fast...The proportion of vehicles exceeding 75 mph, the limit set [by Montana] in 1999, tumbled 45 percent. The proportion surpassing 80 mph plummeted 85 percent. Large trucks slowed, too." (She did not mention that the IIHS survey of traffic speeds on Interstate highways in 2006 she referred to, found Montana, as compared with New Mexico and Nevada, had the highest compliance with the 75 mph speed limit on rural interstates: 76 percent.)[51] Hawaii was the last state to raise its speed limit when, in response to public outcry after an experiment with traffic enforcement cameras in 2002, it raised the maximum speed limit on parts of Interstates H-1 and H-3 to 60 mph (95 km/h).[52]