As part of Union Pacific's $3 million investment in track improvements, the railroad will increase the speed of its trains in several central Kansas communities. The speed will increase from 25 mph to 49 mph across UP's 20-mile line between Whitewater, Kan., and Wichita, Kan.

Train speeds will be increased five mph each week beginning Sept. 1, and four mph on Sept. 22, when the new maximum speed limit of 49 mph is reached.