Figure 1.6.
Towerman Operating Electric Interlocking Controls.
a. Control panel.
The dispatcher's control panel, or board, has
diagrams representing the track layout, as shown in the upper part of figure
1.5.
All areas under his jurisdiction controlled by CTC are shown on the
panel. Small indicators, mounted at intervals along the board, light up as
the train reaches the point on the railroad represented by each particular
indicator. Thus, a dispatcher can watch the progress of any train within-
his jurisdiction merely by observing the lights, and he can check the speed
of a train by timing it between two lights.
Also, he knows when a train
makes an unscheduled stop or when it is losing considerable time. He can
direct a train into any siding and let it out the other end, or he can
switch a train from the eastbound to the westbound, or from the high- to the
low-speed tracks and back again, merely by manipulating the small electric
switches before him. The engine crew
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