▁the ▁commercial ▁sh ipping ▁that ▁uses ▁the ▁port . ▁Its ▁high ▁speed ▁also ▁enables ▁it ▁to ▁carry ▁out ▁a ▁rescue ▁role ▁if ▁required . ▁ ▁Off - road ▁app li ances ▁Due ▁to ▁the ▁rural ▁nature ▁of ▁Dev on ▁and ▁Som erset , ▁a ▁number ▁of ▁vehicles ▁are ▁used ▁that ▁are ▁capable ▁of ▁reaching ▁inc idents ▁that ▁occur ▁on ▁the ▁comm ons , ▁mo ors ▁and ▁he ath lands ▁of ▁the ▁region . ▁These ▁all ▁carry ▁special ised ▁fire f ight ing ▁equipment ▁designed ▁for ▁the ▁purpose . ▁▁ ▁Ch ed dar ▁and ▁D ul ver ton ▁each ▁operate ▁a ▁Pin z g auer , ▁a ▁spe cially - built ▁ 6 x 6 ▁vehicle . ▁They ▁are ▁strateg ically ▁located ▁to ▁tack le ▁t ough ▁terra ins ▁in ▁their ▁respective ▁locations . ▁ ▁The ▁J CB ▁Gr ound h ogs ▁at ▁Por lock ▁and ▁Nether ▁St ow ey ▁are ▁high - m ob ility ▁fire f ight ing ▁app li ances . ▁They ▁are ▁transport ed ▁on ▁tra ilers ▁to ▁inc idents ▁that ▁are ▁difficult ▁to ▁access ▁and ▁operate ▁usually ▁in ▁conj unction ▁with ▁the ▁Pin z g au ers ▁and ▁other ▁off - road ▁vehicles . ▁ ▁Line ▁rescue ▁unit ▁Spe cially ▁trained ▁cre ws ▁use ▁these ▁vehicles ▁to ▁carry ▁out ▁res c ues ▁on ▁the ▁cl iffs ▁and ▁quar ry ▁faces ▁across ▁the ▁region . ▁ ▁Support ▁vehicles ▁L 4 P ▁and ▁L 4 V ▁support ▁vehicles ▁are ▁used ▁to ▁support ▁operations ▁by ▁providing ▁log istics ▁and ▁access ▁in ▁difficult