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The track contains three 'mini-track' configurations that allow flexibility for numerous types of kart racing, including oval track and Sprint racing. The MacArthur Park Raceway was the official venue of the 2005 Karting Regionals. In 2006 and 2007, the MacArthur Park Raceway was host to the Oklahoma SuperBikers races.
The turnpike's speed limit is 80 mph (130 km/h) from I-40 south to north of US-270/OK-1, and from there to the southern terminus it is 75 mph (120 km/h). Law enforcement along the Indian Nation Turnpike is provided by Oklahoma Highway Patrol Troop XC, a special troop assigned to the turnpike.
The posted speed limit is as high as 80 mph (130 km/h), making it possible to drive legally from Tulsa to downtown Oklahoma City in under 90 minutes. In addition to the Oklahoma City and Tulsa entrance points on the turnpike, other interchanges are located in Wellston, Chandler, Stroud, Bristow, near Kellyville and Sapulpa. Toll plazas are ...
The highest posted speed limit in the country is 85 mph (137 km/h) and can be found only on Texas State Highway 130, a toll road that bypasses the Austin metropolitan area for long-distance traffic. The highest speed limit for undivided roads is 75 mph (121 km/h) in Texas. Undivided road speed limits vary greatly by state.
In Oklahoma, the maximum posted speed limit is 75–80 miles per hour on turnpikes and 70-75 mph on all other freeways. [135] Most other rural highways, divided or undivided, have a 65 mph speed limit (although some rural divided highways and some sections of undivided US 412 have a 70 mph limit).
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Speed limit changes after deadly crash on rural Oklahoma County road
Hallett Motor Racing Circuit is a road course about 35-mile (56 km) west of Tulsa in the Green Country of Oklahoma. The track has 10 turns in 1.800 mi (2.897 km), and over 80 ft (24 m) of elevation change. [2] The track can also be configured to run both clockwise and counter-clockwise, yielding two distinct race courses.