" ▁w ards . ▁The ▁civil ▁parish ▁is ▁not ▁functional ▁however , ▁and ▁there ▁is ▁no ▁council ▁or ▁meeting . ▁ ▁Transport ▁St ▁Mary ' s ▁is ▁the ▁only ▁island ▁of ▁the ▁Is les ▁of ▁Sc illy ▁with ▁a ▁significant ▁road ▁network ▁and ▁the ▁only ▁island ▁with ▁public ▁high ways , ▁including ▁three ▁A ▁roads ▁( me as uring ▁ 4 . 7 ▁miles ▁in ▁total ▁length ) ▁which ▁are ▁number ed ▁in ▁Zone ▁ 3 ▁of ▁the ▁British ▁number ing ▁scheme ▁( the ▁A 3 1 1 0 , ▁A 3 1 1 1 ▁and ▁A 3 1 1 2 ); ▁these ▁' A ' ▁roads ▁are ▁generally ▁country ▁lan es ▁in ▁nature . ▁Ro ads ▁and ▁streets ▁across ▁Sc illy ▁have ▁very ▁few ▁signs ▁or ▁mark ings , ▁and ▁route ▁numbers ▁are ▁not ▁marked ▁at ▁all . ▁ ▁In ▁ 2 0 0 5 ▁there ▁were ▁ 6 1 9 ▁cars ▁and ▁v ans ▁on ▁St ▁Mary ' s ; ▁the ▁island ▁also ▁has ▁tax is ▁and ▁a ▁conducted ▁bus ▁tour . ▁Ve h icles ▁in ▁Sc illy ▁are ▁ex empt ▁from ▁annual ▁M OT ▁tests . ▁ ▁By ▁air , ▁the ▁island ▁is ▁served ▁by ▁St ▁Mary ' s ▁Airport . ▁Currently ▁only ▁fixed - wing ▁aircraft ▁services ▁are ▁scheduled , ▁operated ▁by ▁Is les ▁of ▁Sc illy ▁Sky bus , ▁to ▁and ▁from ▁Land ' s ▁End , ▁New qu ay , ▁and ▁( except ▁in ▁winter ) ▁Ex eter . ▁Hel ic opter ▁services ▁were ▁operated ▁by ▁British