| 1. | The entire line was governed by an absolute block signal system.
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| 2. | This was called the " absolute block system ".
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| 3. | Trains of this type must be given absolute block protection to the rear.
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| 4. | Signalling and safety systems on both sections included track circuit and absolute block signalling.
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| 5. | Even with an absolute block system, multiple trains may enter a block with authorization.
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| 6. | The Ballarat and Bendigo lines were both controlled by absolute block signalling from the Sunshine signalbox.
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| 7. | From Avon Yard to Kalgoorlie this is known as the Single Line Automatic Signalling System using absolute block.
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| 8. | The absolute block system was in place, but was not being operated in accordance with the regulations.
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| 9. | Between Bewdley North and Bewdley South the double track section through platforms 1 & 2 is signalled with absolute block.
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| 10. | With the coming of absolute block signalling, the class-based headcodes allowed signallers to identify and regulate trains properly.
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