sˈaʊθ lˈʌndən ɪz pˈʊɹli sˈɜːvd baɪ ðə lˈʌndən ˌʌndɚɡɹˈaʊnd nˈɛtwɜːk, bˌʌt dˈʌz hæv ɐ lˈɑːɹdʒ nˈʌmbɚɹ ʌv səbˈɜːbən ɹˈeɪl lˈaɪnz.
South London is poorly served by the London Underground network, but does have a large number of suburban rail lines.