|Cross River Rail - a tunnel between 2 bottlenecks|
Gold Coast Line 12tph - CONCERNING - requires the Kuraby to Beenleigh track upgrade (or slowing down of Gold Coast services). 8tph more likely. Will become critical if planning does not start soon.
Beenleigh Line 4-6tph - NO IMPROVEMENT to train services due to there being no plans for 4 tracks on the shared Gold Coast/Beenleigh Line corridor.
Salisbury (future Beaudesert) Line 7tph - CONCERNING - requires suitable turn back facilities and a grade-seperated junction at Salisbury. There will be scheduling concerns due to an out-of-sync frequency with interacting lines. Limited possibility of service improvements after Beaudesert Line opens as the lack of a 4th track from Dutton Park to Salisbury will limit counter-peak and off-peak services. Will become critical if (re-)planning does not start soon.
Ipswich and Springfield Lines 12tph (each) - CONCERNING - requires European Train Control Signalling (ETCS) from Darra to CBD, and ideally 4th electrified track and platform through Oxley. Not dependant on CRR.
Ferny Grove Line 8tph - NO IMPROVEMENT - ETCS would improve reliability on the core section, and evening peak service should be increased from 6-8tph - see sufficient trains section!
Caboolture and Redcliffe Lines 12tph (each) - CONCERNING - dependent on ETCS from Northgate to CBD, and improved track layout at Kippa-Ring. Not dependent on CRR. 4tph on Sunshine Coast Line.
Shorncliffe Line 6-8tph - CONCERNING - 6tph requires duplication between Sandgate and Shorncliffe (or erratic and unreliable scheduling). 8tph from Northgate to CBD is no improvement, though ETCS would improve core system reliability. Shorncliffe Line will be the test line for ETCS in 2022. Will become critical if planning does not start soon.
Airport Line 4tph - NO IMPROVEMENT - ETCS would improve reliability on core system. Airport Line needs an extended 4tph off-peak service.
Doomben Line 2tph - NO IMPROVEMENT - to not extend to Hamilton Northshore is a absolute disgrace.
Cleveland Line 11tph - CONCERNING - 11tph from Manly to CBD would require a 3rd platform at Manly or Lota, and possibly a partial duplication. Will become critical if planning does not start soon.
15 minute off-peak services - CONCERNING - off-peak service proposals are not even published by CRR, and running 4tph throughout the suburban network would be constrained by multiple infrastructure limitations including lack of 4th track between Dutton Park and Kuraby.
Sufficient Trains - CONCERNING - approximately 40 new trains are required to optimise peak services on the existing train network (e.g. pm peak frequencies to match am peak) and for additional peak services for CRR. These have yet to be ordered. Will become critical if the train order is not placed soon, especially as the NGR fleet rectification will take many years as well.
Sufficient Train Crew - CONCERNING - sustained driver recruitment and forward planning is required.
Tunnel stubs for linking to future NWTC / Trouts Road Line - CRITICAL - not in current plans. To attach these tunnels would require a closure of CRR for many months, or an indirect routing of NWTC tunnels. NWTC is the optimal way of improving journey times and capacity from the North.
To conclude, other than lines where there will no service improvements from Cross River Rail, all other lines are currently in the CONCERNING category as they require either:
- New track infrastructure that has not started construction.
- New ETCS signalling - testing won't occur until 2022.
- More trains that have yet to be ordered.
- Train crew that have yet to be employed.