ɪn ˈeɪpɹəl tˈuː θˈaʊzənd ˈeɪt, mˈɛtɹəlˌɪŋks bˈɔːt ðə wˈɛstən sˈʌb fɹʌm sˌiːˈɛn ɹˈeɪl tʊ ɐlˈaʊ ðˌɛm tʊ ɛkspˈænd ðə ɹˈeɪlweɪ tə səpˈoːɹt ɪŋkɹˈiːst tɹˈeɪn sˈɜːvɪs ɐlˈɔŋ ðə kˈɔɹɪdˌoːɹ.
In April 2008, Metrolinx bought the Weston Sub from CN Rail to allow them to expand the railway to support increased train service along the corridor.