Orbital railways have an intrinsic timetabling robustness problem. Route design, timetabling and branding of the services is managed by Transport for NSW. Previously, separation of trains had relied on strict timetabling. Efficient operation is even more essential than normal with integrated clock-face timetabling. It said problems on the line could also be overcome with improved timetabling. There is no evidence of joint timetabling between the gauges here. This was due to the timetabling in the mid-1990s, when the concept was developed. Timetabling, as of 2019, requires passengers to change at Limerick Junction. This allows timetabling improvements to the line in future.