▁October . ▁ ▁From ▁June ▁ 2 0 0 6 , ▁the ▁service ▁between ▁East ▁Fin ch ley ▁and ▁Cam den ▁Town ▁was ▁susp ended ▁for ▁two ▁non - con sec utive ▁week ends ▁every ▁month , ▁with ▁service ▁on ▁the ▁Ed g ware ▁branch ▁susp ended ▁for ▁the ▁other ▁two ▁weeks . ▁This ▁was ▁part ▁of ▁T ube ▁L ines ' s ▁re development ▁of ▁some ▁Ed g ware ▁and ▁High ▁Bar net ▁Branch ▁stations , ▁including ▁replacement ▁of ▁track , ▁signals , ▁as ▁well ▁as ▁station ▁maintenance . ▁This ▁included ▁ref urb ishment ▁of ▁all ▁High ▁Bar net ▁branch ▁stations ▁from ▁West ▁Fin ch ley ▁to ▁Cam den ▁Town . ▁In ▁October ▁ 2 0 0 6 , ▁off - pe ak ▁service ▁between ▁Mill ▁Hill ▁East ▁and ▁Fin ch ley ▁Central ▁was ▁cut ▁back ▁to ▁a ▁sh utt le , ▁except ▁for ▁a ▁few ▁week end ▁through ▁trains . ▁ ▁On ▁ 1 3 ▁August ▁ 2 0 1 0 , ▁a ▁defect ive ▁rail ▁gr inding ▁train ▁caused ▁dis ruption ▁on ▁the ▁Char ing ▁Cross ▁branch , ▁after ▁it ▁travel led ▁four ▁miles ▁in ▁ 1 3 ▁minutes ▁without ▁a ▁driver . ▁The ▁train ▁was ▁being ▁to wed ▁to ▁the ▁dep ot ▁after ▁becoming ▁fault y . ▁At ▁Arch way ▁station , ▁the ▁defect ive ▁train ▁became ▁det ached ▁and ▁ran ▁driver less ▁until ▁coming ▁to ▁a ▁stop ▁at ▁an ▁incl ine ▁near ▁Warren ▁Street ▁station . ▁ ▁This ▁caused ▁morning ▁r ush - hour ▁services ▁to ▁be ▁susp