networks. On the other hand, statistically significant increases in crash, fatal crash and fatality rates were observed on the 2-lane rural highway network.". In 2011 Governor Sam Brownback signed legislation raising Kansas' top speed limit to on rural Interstates and limited access portions of U.S. Routes, effective July 1, 2011. The Kansas Department of Transportation announced on June 21, 2011, that 807 miles of roadway, comprising the rural areas of I-70, I-35, I-135, the Kansas Turnpike and the freeway-improved sections of US-69 and US-81, will be raised to 75 mph. Other four-lane, non-limited access divided highways have a speed limit of 70 mph, with 65 mph on two-lane undivided roads, and 55 mph on township roads. Prior to the National Maximum Speed Limit, the speed limit on the Kansas Turnpike used to be , but was reduced to 75 mph on August 17, 1970. The minimum speed limit on Kansas Interstates is 40 mph. Kentucky Kentucky generally has a 70 mph speed limit on rural freeways as of 2007. The speed limit is reduced to 55 on multi-lane highways in some urban areas (I-71/75 south of Cincinnati, I-64, I-65, I-71 and I-264 in Louisville, and KY 4 in Lexington. There are two 50 mph areas in Louisville. One approaching the Sherman Minton Bridge crossing the Ohio River into Indiana on I-64, and one approaching the Kennedy Bridge on I-65 towards Indiana. The Transportation Cabinet is now authorized to raise any multilane, divided rural highway up to 65 MPH based on speed and design studies. Anyone may request an increase by contacting their local Transportation Cabinet office and specifying the roadway to be raised. Two-lane, undivided highways are limited to 55 mph. Points are not assessed for speeds less than 10 mph over the speed limit only on limited access highways, or for tickets received by Kentucky licensed drivers out of state. Louisiana Louisiana's highest speed limit is 75 mph, found on 154 miles of Interstate 49 in Saint Landry, Avoyelles, Evangeline, Rapides, Natchitoches, DeSoto and Caddo parishes. The Caddo Parish 75 zone is split into two portions, from the DeSoto-Caddo Parish line to Louisiana Highway 526, and from Louisiana Highway 1 to the Arkansas state line. The 75 zone was established by the Louisiana Department of Transportation and Development in 2011 after a 2010 bill authorized the DOTD to implement 75 zones where proven to be safe. 70 mph is