The Nebraska Highway Commission and Roads Department are proceeding with all deliberate speed in reviewing posted limits on state highways.
Speed limits have been raised on about 360 miles so far, and the review is about halfway finished.
The Roads Department's Alan Swanson says the policy on speedlimits is based on what is safe and reasonable for any particular stretch, plus what would be consistent with similar stretches elsewhere in Nebraska.
Swanson says the review of 1,135 miles of state highways began in November 2008, after a new policy was developed that gives more weight to consistency.
Highway commissioner Doug Leafgreen says motorists often are frustrated by limits of 35 mph in one town, while in another townthe limit is 50 mph.