Radio Frequency - 160.590 (AAR Channel 32)
Dispatcher - 160.530 (AAR Channel 28)
6.9 Railport Yard
8.7 Elsdon Yard
11.8 Hayford (BRC crossing/remote-BRC dispatcher)
12.8 Ashburn (Metra crossing/remote-Landers Yard)
19.3 Blue Island Tower (IHB/CSX crossing)
19.5 Broadway
20.2 Blue Island
23.2 Harvey (CSX junction/IC connection)
25.2 Thornton Jct. (UP crossing)
28.6 Oak Glen
31.1 Munster (junction-CSX)
34.0 Hays (NS crossing)
36.1 Griffith (CN crossing)
Railport Yard to Elsdon Yard - yard rules.
Elsdon Yard to Hayford - 1 track, CTC in use.
Hayford to Broadway - 2 tracks, signalled for normal right hand operation.
Broadway to Griffith - 2 tracks, CTC in use.
CN Dispatcher TD-4 located in Pontiac, MI.
Radio Frequency - 160.590 (AAR Channel 32)
Dispatcher - 160.530 (AAR Channel 28)
36.1 Griffith (CN crossing)
39.6 Lottaville
43.3 Spring Lake
45.1 Ainsworth
50.4 Sedley
52.7 Wayne (NS/CSX crossing)
57.3 Valparaiso
59.1 Lincoln
64.3 Haskells
71.1 Wellsboro (CSX crossing)
74.9 Kingsbury
80.2 Stillwell
84.6 Mill Creek
91.6 Crumstown
95.5 Flower
97.5 Vandalia Jct.
99.2 Olivers Jct.
99.5 South Bend (junction-NS)
Griffith to Sedley - 2 tracks, CTC in use.
Sedley to Valparaiso - 1 track, CTC in use.
Valparaiso to South Bend - 2 tracks, CTC in use.
Through South Bend - trackage rights over Norfolk Southern.
CN Dispatcher TD-4 located in Pontiac, MI.
Information is subject to change, and is based on information from the CORA (Chicago Operating Rules Association) guide dated 2001, along with some observations, and Google satellite imagery.
The following colors are used to indicate types of operation:
BLUE - manual interlocking
RED - centralized traffic control (CTC) or bidirectional signals
GREEN - automatic block signals (single direction, current of traffic)
BLACK - unsignaled
Thin lines across tracks indicate signals. In CTC or bidirectional signal territory, signals usually exist for both directions at all locations, except at interlockings where the signals usually are only in the direction entering the interlocking.

