By YUEHAN LIU
Capital News Service
LANSING—Part of the Michigan passenger rail service goes 110 miles an hour, but not all of it. Next year the state will test additional tracks to support that speed along the Amtrak route between Detroit and Chicago. “We have three Amtrak trains that run from Michigan to Chicago and the rider shift numbers are continuing to go up,” Kirk Steudle, director of the Michigan Department of Transportation (MDOT), said. “And we are improving the rail line. So 110 is our goal to enhance the speed and cut down the time between Detroit and Chicago.