Coonamia to Stirling North - Introduction of CTC Safeworking
Stage 2 - Mambray Creek
Between the hours of 0800 on Tuesday 14th May 2013 and 1700 on Thursday 16th May 2013, signalling works will be carried out adjacent to the main line track between Port Germein 23 & 23E signals and Mambray Creek for the purpose of commissioning into service CTC safe working in lieu of Train Order safe working.
During this period the existing signalling equipment at Mambray Creek will be decommissioned and subsequently replaced with new signalling equipment as described below. As a result Mambray Creek crossing loop will be booked out of service. 7 and 20 points will be clamped and locked normal. There will be no requirement for train crews to stop and inspect points during commissioning.
The detailed changes are as follows:
- Existing LED signals 23 & 23E at 26.746km will be altered to additionally display a green indication
Baroota (new intermediate signal location)
- New LED permissive signal 33 reading for movements towards Mambray Creek will be located at 34.700km
- New LED permissive signal 34 reading for movements towards Port Germein will be located at 34.700km
- Existing permissive signal 3 at 43.927km will be converted to an absolute LED signal and will consist of ‘A, B and C’ aspects
- Existing Signal 1 at 42.300km will be renumbered as 41 and converted to LED. This signal will now consist of ‘A’ and ‘B’ aspects. In addition to the aspects displayed by the ‘A’ arm only, this signal will now be able to display a reduce to medium speed when 3 signal is indicating a medium speed.
- New LED absolute signals 4 and 4E reading for movements towards Port Germein will be located at 44.020km on the main line and crossing loops respectively
- New LED absolute signals 23 and 23E reading for movements towards Winninowie will be located at 45.841km on the main line and crossing loop respectively.
** Note 23 signal will be located on the right hand side of the main line track due to limited room between the main line and crossing loop tracks.
- Existing permissive signal 24 at 45.954km will be converted to an absolute LED signal and will consist of ‘A, B and C’ aspects
- Existing 26 Signal at 47.550km will be renumbered as 48 and converted to LED. This signal will now consist of ‘A’ and ‘B’ aspects. In addition to the aspects displayed by the ‘A’ arm only, this signal will now be able to display a reduce to medium speed when 24 signal is indicating a medium speed.
- Existing switchstand indicators attached to point machines 7 and 20 will be withdrawn from service and subsequently removed.
Train Order working will continue to remain in force between Port Germein 23 & 23E signals and Mambray Creek until the new signalling system has been commissioned.
Once the new signalling system has been commissioned, the ‘Start of Train Order Working’ notice boards mounted on 23and 23E signals at 26.746km Port Germein will be relocated to signals 23 and 23E at 45.841km Mambray Creek and will read for movements travelling towards Winninowie. Note signals 23 and 23E will only clear to a yellow proceed indication until the Winninowie CTC safe working system has been commissioned at a later date.
Additionally the ‘Start of CTC Working’ notice board mounted on 24 Signal at 26.901km Port Germein will be relocated to 24 Signal at 45.954km Mambray Creek and will read for movements travelling towards Port Germein.
Phoenix train control system in NCCW will be updated during the course of commissioning to display all controls and indications for the new CTC loop at Mambray Creek.
The qualified safe worker shall advise the Network Controller that the works have been completed and the new signalling system has been commissioned into service.
During the testing period, signal aspects within the limits of work may be lit and Train Crews may be requested by testing staff to advise the status of the signal aspects via the local Train to Train radio.
ARTC Infrastructure Services, Darryl Hamp: 0419 299 118