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Clear to proceed on the main |
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Proceed on the main at reduced speed. Prepare to stop short of next signal. |
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Clear to proceed onto diverging route. |
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Proceed onto diverging route. Prepare to stop short of next signal. |
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Prepare to enter diverging route at next signal. |
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Towerman not on duty. Enter interlocking at restricted speed prepared to stop short of obstruction. |
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Stop and remain stopped until signal changes aspect or dispatcher issues permission to pass signal. |