OKLAHOMA CITY — The Oklahoma Turnpike Authority on Tuesday will consider raising the maximum speed limits to 80 mph on rural portions of some turnpikes. The current maximum speed limit is 75 mph. Among the areas proposed for the change is a 13-mile stretch of the Turner Turnpike in Creek County, from milepost 203 to milepost 216, within the newly constructed six-lane section that extends from Sapulpa to 6 miles east of Bristow. The recent passage of House Bill 1071 set the stage for statewide studies on potential maximum speed limit increases to 80 mph on rural turnpikes and 75...