However, since the 1970s, when natural gas succeeded town gas, bitumen has completely overtaken the use of coal tar in these applications.
haʊˈɛvɚ, sˈɪns ðə nˈaɪntiːnhˈʌndɹɪd sˈɛvənti z, wˌɛn nˈætʃɚɹəl ɡˈæs səksˈiːdᵻd tˈaʊn ɡˈæs, bɪtˈuːmɛn hɐz kəmplˈiːtli ˌoʊvɚtˈeɪkən ðə jˈuːs ʌv kˈoʊl tˈɑːɹ ɪn ðiːz ˌæplɪkˈeɪʃənz.