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