▁major ▁destin ations ▁in ▁Northern ▁Ireland , ▁plus ▁the ▁Gold line ▁Express ▁Services ▁X 1 / X 2 ▁( pre viously ▁Service ▁ 2 0 0 ) ▁to ▁Dublin ▁( via ▁Dublin ▁Airport ). ▁This ▁service ▁is ▁worked ▁joint ly ▁with ▁Bus ▁É ire ann ▁service ▁X 1 ▁( pre viously ▁Service ▁ 0 0 1 ). ▁ ▁There ▁are ▁also ▁a ▁number ▁of ▁cross - channel ▁( N orth ▁Channel ) ▁services ▁to ▁Britain , ▁operated ▁in ▁partners hip ▁with ▁National ▁Express ▁under ▁the ▁Eu rol ines ▁b anner . ▁ ▁Ul ster bus ▁Fo yle ▁ ▁For ▁many ▁years , ▁Der ry ' s ▁internal ▁bus ▁network ▁was ▁operated ▁as ▁Ul ster bus ' s ▁Der ry ▁City ▁Services . ▁ ▁It ▁was ▁rela unch ed ▁as ▁Ul ster bus ▁Fo yle ▁on ▁ 4 ▁September ▁ 2 0 0 6 ▁following ▁a ▁review ▁and ▁expansion ▁of ▁the ▁city ' s ▁bus ▁routes ▁and ▁replacement ▁of ▁many ▁of ▁the ▁city ’ s ▁older ▁bus es . ▁ ▁In ▁the ▁same ▁way ▁that ▁Trans link ▁Metro ▁was ▁used ▁to ▁modern ise ▁routes ▁in ▁B elf ast , ▁the ▁Ul ster bus ▁Fo yle ▁network ▁now ▁offers ▁ 1 3 ▁set ▁routes ▁across ▁and ▁into ▁the ▁popular ▁sub urban ▁areas ▁of ▁the ▁city . ▁It ▁was ▁hoped ▁that ▁the ▁new ▁service ▁would ▁make ▁transport ation ▁in ▁Northern ▁Ireland ' s ▁second ▁city ▁easier ▁and ▁would ▁encou rage ▁people ▁to ▁make ▁use ▁of ▁Der ry ' s ▁public ▁transport ▁system ; ▁meant ime ,