| NOTES: |
| 1) A signal not directly controlled by a lever but controlled through a track circuit
shall be shown as 'automatic' although some feature of its control may depend upon another signal which is semi-automatic. |
2) Signal arms shall be shown in normal position. Heavy line indicates normal position
or its equivalent for position light signals thus:
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3) Approach lighted position light signals shall be indicated by the letters AP:
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4) Marker lights, position light signals:
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5) Where a "Stop then Proceed" indication may be displayed, marker light shall be included
in the symbol for the second arm thus:
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6) Color light signals use semaphore characters enclosed in a circle:
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7) Smashboard signals:
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8) Grade signal:
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9) Disc signals:
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10) Slide protection:
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11) Flashing train order signal:
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12) Pedestal type signal:
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13) Phase break indicator:
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