|2017 Proposal for am peak services in 2026|
- Ferny Grove Line - 8tph
- Caboolture Line - 12tph (4tph from Sunshine Coast)
- Kippa-Ring Line - 12tph
- Shorncliffe Line - 6tph (8tph from Northgate to CBD)
- Airport Line- 4tph
- Doomben Line - 2tph
- Ipswich Line - 12tph
- Cleveland Line - 11tph (4-5tph from Cleveland to Manly)
- Beenleigh Line - 6tph (4tph Beenleigh to Kuraby)
- Gold Coast Line - 12tph
- Salisbury/Salisbury-Beaudesert Line) - 7tph
Given CRR's achilles heel of removing of the grade seperated junction at Mayne, and restrictive 3 track section between Dutton Park and Salisbury, BrizCommuter is currently predicting the following am peak period rail operations for when CRR opens in 2024. The frequency in trains per hour varies from best to worst case scenarios depending on associated infrastructure projects being completed:
- Ferny Grove Line (via Suburbans through CBD) - 8-12tph
- Cleveland Line (via Suburbans through CBD) - 8-12tph
- Caboolture Line (via CRR through CBD) - 10-12tph (incl. 3-4tph Sunshine Coast Line)
- Kippa-Ring Line (via CRR through CBD) - 10-12tph
- Gold Coast Line (via CRR through CBD) - 6-12tph
- Beenleigh Line (via CRR through CBD) - 6tph (4-6tph Beenleigh to Kuraby)
- Salisbury-Beaudesert Line (via CRR through CBD) - 0-6tph
- Ipswich Line (via Mains through CBD) - 10-12tph
- Springfield Line (via Mains through CBD) - 10-12tph
- Shorncliffe Line (via Mains through CBD) - 8tph (4-8tph Shorncliffe to Northgate)
- Airport Line (via Mains through CBD) - 4tph
- Doomben Line (via Mains through CBD) - 2-4tph
Interestingly, the Suburban tracks through the CBD will only be running at 33-50% capacity (down from 92%), and services via South Bank will be less than at present. So what might this spare capacity be used for? A clue is in the statement that CRR will "support a future rail link between Alderley and Strathpine". This would be via the North West Transportation Corridor (NWTC) / Trouts Road Line. This would have the benefits of using the NWTC for a frequent (up to 12tph) suburban train service to serve many Northern Brisbane suburbs that are currently devoid of half-decent public transport including Everton Park, McDowall, Chermside West, Albany Creek, and Bridgeman Downs. However, due to the routing via the indirect inner-Ferny Grove Line instead of a more direct tunnel from Enoggera area to the CBD, it would poorly serve the NWTC's second purpose of being used for fast regional rail from the Sunshine Coast to Brisbane.
Without associated infrastructure, CRR is not fit for purpose. Making optimal use of the extra capacity provided by CRR requires the following infrastructure projects to be completed:
- ETCS - Level 2 Signalling - anywhere where trains need to spaced less than 3 mins apart.
- Beenleigh Line upgrade (Beenleigh to Kuraby section).
- Salisbury-Beaudesert Line.
- Grade-seperated junction and temporary turnback facilities at Salisbury/Acacia Ridge.
- Cleveland Line duplication/3rd platform at Lota.
- Sandgate to Shorncliffe duplication.
- Doomben Line duplication (with possible extension options such as Northshore Hamilton).
- 4th electrified track and platform at Oxley.
- Removal of most Road/Rail Level Crossings.
- Additional train stabling.
- 40-45 more 6-car trains (and enough train crew).
- NWTC - Alderley to Strathpine.
It is time that the Cross River Rail Delivery Authority, Department of Transport and Main Roads, Queensland Government, and Queensland Rail come clean on how the train network will operate after CRR opens. The authorities also need to come clean on the timeframe and priority for each associated infrastructure project required to optimise use of CRR's extra capacity. Questions include:
- What are the proposed am peak service patterns at CRR opening?
- What are the proposed pm peak service patterns at CRR opening?
- Will the 4tph daytime off-peak network be increased, and on which lines?
- Which lines will be linked through Brisbane's CBD?
- When will the required associated infrastructure projects take place, and how will they enhance services?
- What are the current proposals (including route safeguarding for rail) for the NWTC?