|Limited passing places |
on the Sunshine Coast Line
- The Sunshine Coast Line currently runs approx. 3tph in the am peak, with these services inclusive to the Caboolture Line's 9tph (maximum currently possible is 10tph with trains every 6 minutes). The Caboolture Line services interleave with Redcliffe Peninsula Line services between Northgate and Brisbane's CBD.
- Off-peak services on the Sunshine Coast Line are currently every 1.5 hours, and every 30 minutes on the Caboolture Line. Train paths are also required for freight traffic. A duplication would allow more of the Caboolture services to run to/from Landsborough or Nambour as long as there are enough drivers.
- With duplication, but without CRR, or ETCS L2 signalling, the Sunshine Coast Line could run more peak services that currently start/terminate at Caboolture. The maximum realistically possible would be 5tph to/from Landsborough, a train every 12 minutes. This would cause increased crowding on alternate Caboolture Line services. It would also require more trains and drivers, which are currently both in severe shortage for many years to come.
- With duplication and ETCS L2 signalling (across QR's network), but without CRR, the Sunshine Coast Line and Caboolture Line could both have service improvements. Up to 12tph could be operated on the Caboolture Line, of which realistically 4 to 6tph could run to/from Landsborough on the Sunshine Coast Line in the am peak.
- Due to capacity contraints (4 tracks) between Northgate and Brisbane's CBD, CRR would not add any capacity to the above scenario. CRR's 2026 service plan claims 27tph would be split between Caboolture/Sunshine Coast and Redcliffe Peninsula Lines, but BrizCommuter doubts that this is realistically possible (and BrizCommuter is usually right).
- If the Caboolture and Sunshine Coast Lines were connected to a new rail line along the Trouts Road / North West Transport Corridor towards Brisbane's CBD, then 24tph could run to Caboolture. A significant proportion of these services (such as 8tph) could run on the Sunshine Coast Line. Preferably by this time, a train line serving Caloundra and Maroochydore (CAMCOS) would have been constructed.
So realistically, Cross River Rail is not required to increase am peak capacity from 3tph to 5 or 6tph on the post-duplicated Sunshine Coast Line. ETCS L2 signalling, more trains and more drivers would help alleviate added crowding on Caboolture Line services which can only be increased by approx. 20%. For significant (>20%) capacity increases on the Caboolture Line, and to allow high frequency (>6tph) peak services to Caloundra and Maroochydore, a new train line along the Trouts Road / North West Transport Corridor would be required.