lines to access Sydney Terminal. From the Illawarra junction, four tracks head south through the stations of Erskineville and St Peters to Sydenham. Immediately north of Erskineville, the Illawarra lines are connected to the Illawarra Relief Lines which emerge from underground. These lines form the Eastern Suburbs line which opened in 1979. Heading south from Erskineville, the easternmost pair of tracks are the Up and Down Illawarra lines which usually carry the T4 Illawarra Line passenger services. The westernmost pair of tracks are the Up and Down Illawarra local tracks which usually carry T3 Bankstown Line services and T8 Airport & South Line express trains operating via Sydenham. To the west of the four tracks between Erskineville and Sydenham there is a reservation for a further pair of tracks with partially constructed platforms at Erskineville and St Peters stations. At Sydenham, six platforms are provided, with T3 Bankstown Line services generally using the westernmost pair (platforms 1 and 2), T8 Airport & South Line peak hour services using the inner pair (platforms 3 and 4) and T4 Illawarra Line services using the easternmost pair of platforms (platforms 5 and 6). South of Sydenham, the Bankstown railway line branches off in a westwards direction. The Botany Goods Line crosses over the Illawarra line via a flyover. The line then reaches Tempe station, before crossing the Cooks River. South of the Cooks River lies Wolli Creek station, constructed by the NSW State government in 2000 to provide an interchange between the Illawarra line and the newly privately built Airport Link to the east, an extension of the East Hills line, connecting via a new tunnel under the Illawarra line, which then branches off to the west. The Illawarra line continues south as four tracks through a rock cutting to the stations of Arncliffe, Banksia and Rockdale. Rockdale station has five platforms, platform 1 (the most westerly platform) is currently unelectrified and disused but was previously a terminating point for electric passenger trains. South of Rockdale, the line passes through Kogarah which has a shopping centre built overhead. The line then makes a westerly turn, heading through Carlton and Allawah. The next station is Hurstville, which is where the four-track section ends and terminating facilities are provided. Like Kogarah, Hurstville has a shopping centre built above the platforms. South of Hurstville, the line becomes two tracks with bidirectional signalling. The line passes through