ɪts pɹˈaɪmɚɹi kəmpˈoʊnənts ɑːɹ ðə sˈʌðɚn sˈɪdni fɹˈeɪt lˈaɪn ˌɛsˌɛsˌɛfˈɛl ænd ɐ lˈaɪn fɹʌm sˈɛftən tʊ ˈɛnfiːld ænd pˈoːɹt bˈɑːtəni.
Its primary components are the Southern Sydney Freight Line (SSFL) and a line from Sefton to Enfield and Port Botany.