▁Street ▁to ▁Black boy ▁Hill . ▁In ▁ 1 8 8 7 ▁the ▁Br istol ▁Tr am ways ▁Company ▁merged ▁with ▁the ▁Br istol ▁Cab ▁Company ▁to ▁form ▁the ▁Br istol ▁Tr am ways ▁& ▁Car riage ▁Company . ▁ ▁In ▁ 1 8 8 7 , ▁the ▁company ▁began ▁a ▁horse - bus ▁service ▁to ▁Cl if ton , ▁and ▁later ▁started ▁several ▁more ▁horse - bus ▁services ▁to ▁complement ▁the ▁tram ways . ▁In ▁ 1 8 9 2 , ▁the ▁Imperial ▁Tr am ways ▁Company ▁moved ▁its ▁headquarters ▁from ▁London ▁to ▁Br istol . ▁George ▁White ▁and ▁the ▁senior ▁management ▁team ▁of ▁Br istol ▁Tr am ways ▁also ▁ran ▁Imperial ▁Tr am ways , ▁though ▁they ▁remained ▁separate ▁companies . ▁ ▁In ▁ 1 8 9 5 , ▁the ▁company ▁began ▁to ▁operate ▁electric ▁tr ams , ▁and ▁in ▁ 1 9 0 6 ▁introduced ▁motor ▁bus es ▁on ▁the ▁route ▁between ▁the ▁Centre ▁and ▁Cl if ton . ▁Rap id ▁expansion ▁of ▁its ▁bus ▁services ▁followed , ▁in ▁both ▁Br istol ▁and ▁the ▁surrounding ▁country ▁areas . ▁The ▁company ▁opened ▁branches ▁in ▁Bath ▁in ▁ 1 9 0 9 , ▁West on - super - M are ▁in ▁ 1 9 1 0 , ▁Ch el ten ham ▁in ▁ 1 9 1 2 ▁and ▁Gl ouc ester ▁in ▁ 1 9 1 3 . ▁In ▁ 1 9 1 2 ▁the ▁company ▁also ▁bought ▁the ▁Cl if ton ▁Ro cks ▁Railway , ▁which ▁closed ▁in ▁ 1 9