of OSCARs onto the intercity CityRail network, All G sets were recalled for conversion into T sets. The OSCAR fleet effectively replaced the G set rolling stock and, since 2010, standard Sydney Trains T sets, owned by NSW TrainLink, have been operating services to Port Kembla. In 2017, it was revealed that the Liberal state government had reviewed a 3.6 billion dollar tunnel between Thirroul and Waterfall that could reduce travel time between Sydney and Wollongong by 22 minutes, but that rail improvements were being sidetracked in favour of improving and extending the nearby Princes Motorway. Incidents On 20 December 1994, an accident involving two empty S sets occurred during a shunting procedure at . One of the trains jack-knifed onto the platform, demolishing the concrete pedestrian bridge. No injuries or casualties, however, were reported. On the morning of 31 January 2003, an intercity Tangara en route to derailed at high speed between Waterfall and , resulting in the deaths of seven people and injury of forty. The accident was the third major accident resulting in fatalities on the CityRail network in 13 years, after the Cowan rail accident in 1990 and Glenbrook rail accident in 1999. On 24 November 2011, a Pacific National coal train derailed near Clifton, causing the suspension of South Coast Line services between Waterfall and . Services were resumed four days later, after the derailed train was removed from the tracks. The train had derailed immediately after coming out of the Clifton tunnel, with the front eight clearing the tunnel and derailing, and the rear twelve carriages remaining inside the tunnel. The Office of Transport Safety Investigations found that the cause of the derailment was a broken axle. Services Peak hour and weekend services commence from or on the Eastern Suburbs railway line, and stop at Central at Platform 25. At other times, services depart from Central (Sydney Terminal). They generally use platform 15, but this can change at short notice, as with all services from Sydney Terminal. Some peak hour and weekend services are listed as pickup only at intermediate suburban stations (eg. Redfern, Hurstville, Sutherland). This restriction is to ensure the train does not fill up with suburban passengers, who have plenty of other suburban services to take. Pickup only stations are not displayed on platform screens, but will be displayed on in-train screens. The most common Central to services are operated by