Vowels and diphthongs TRAP

In many Southwestern accents the TRAP vowel is realized as [a]. This realization is typical of rural accents in the region, but it also occurs in urban accents. Bristol and Southampton, however, are reported to have [æ] rather than [a] (Wells 1982: 345; Hughes and Trudgill 1996: 57, 77), as are Somerset and West Cornwall. (Wakelin 1986: 21)