ðə lˈæɾɚ stˈɑːps wɜːɹ ˌɪntɹədˈuːst æt ðə mˈeɪ tˈuː θˈaʊzənd ɪlˈɛvən tˈaɪmteɪbəl tʃˈeɪndʒ ænd ˈɔfɚ θɹuː dʒˈɜːni ɑːpɚtˈuːnᵻɾiz tʊ ænd wˈɛst wˈeɪlz.
The latter stops were introduced at the May 2011 timetable change and offer through journey opportunities to  and West Wales.