Existing Dispatch Centers
Railroads in and around Michigan are controlled by the following dispatching centers:
Adrian & Blissfield group - These lines are dispatched from A&B corporate offices in Westland. They include the Adrian & Blissfield, Jackson & Lansing, Charlotte Southern, Lapeer Industrial and Detroit Connecting.
Amtrak - The CN line that Amtrak uses from Pontiac to West Detroit is controlled by CN. The line from West Detroit to Dearborn by Conrail Shared Assets. The Amtrak line from Dearborn to Porter is controlled by the Antrak dispatcher in Chicago. From Porter west by Norfolk Southern.
The Amtrak line from Grand Rapids to Porter, IN is controlled by the CSX Calumet City dispatch center (160.23).
The Amtrak line from Port Huron to Battle Creek, MI is controlled by the CN dispatcher (160.59)
Ann Arbor Railroad - The Ann Arbor Railroad from Toledo to Osmer (north of Ann Arbor) is controlled by the operator at Hallet Tower in Toledo. From Hallet to Diann is controlled by ABS. This is a WATCO line.
Canadian National - Canadian National lines in the lower peninsula are controlled by train dispatchers in Chicago. Most of these lines are CTC.
CN lines in the Upper Peninsula are controlled by train dispatchers at Stevens Point, Wisconsin. None of these lines are CTC, all are "dark" territory.
Canadian Pacific - The CP Detroit-Windsor tunnel is controlled by CP disipatchers in Canada. Other than that, CP uses trackage rights in Michigan and their trains are contolled by dispatchers from the owner railroads including Conrail Shared Assets, NS and CSX. The tunnel is controlled by CTC.
Conrail Shared Assets - Conrail Shared Assets dispatchers in New Jersey control lines in southeast Michigan, including Ecorse to West Detroit, West Detroit to Utica, west of the Detroit tunnel portal to Dearborn, the Junction Yard and Belt Line branches, and the line to Carleton to Melvindale. Most of these lines are CTC.
CSX - CSX lines in Michigan are controlled by dispatchers in Calumet City, IL (in the Chicago area). This includes the Union Belt, Delray to Porter, IN via Plymouth, Lansing and Grand Rapids; and Toledo to McGrew Yard in Flint. CSX also uses the CN via trackage rights from Kearsley (Flint) to Port Huron and is dispatched by CN. Indistrial trackage south of Port Huron and south of Sarnia, ON is operated under yard rules. Most of these lines are CTC.
Great Lakes Central - GLC is controlled by a dispatcher at Owosso.
Indiana & Northeastern - I&NE is controlled by a dispatcher at Milford, IN.
Genesee and Wyoming lines in Michigan - These lines are controlled by a dispatcher in St. Albans, Vermont. They include the Grand Rapids Eastern, Huron & Eastern, Indiana & Ohio, Michigan Shore, MidMichigan, and Saginaw Valley.
Lake States Railway - Lake States is controlled by a dispatcher at Saginaw. A portion of the line from Mt. Morris to Saginaw is CTC.
Lake Superior & Ishpeming - LS&I lines from the mines north via Eagle Mills to the Presque Isle dock, and west from Eagle Mills to Ishpeming are dispatched by the control operator at Eagle Mills. A small portion of the line is CTC.
Mineral Range - The Mineral Range dispatches its line from Landing Junction in Ishpeming, west to Humboldt. This appears to be a contracted dispatch service, source unknown.
Norfolk Southern - NS lines in Michigan are dispatched by their Dearborn dispatching center (in the offices across from Ford World Headquarters in Dearborn). This includes River Rouge to Toledo, Melvindale to Montpeilier, OH (added in 2014), and the Amtrak line from Dearborn to Kalamazoo. Most of these lines are CTC.
Watco lines in Michigan - Grand Elk Railroad runs from Elkhart, IN north to Grand Rapids. Dispatching not known at this time. The Ann Arbor Railroad is also a WATCO line. See above.