ile ▁mach in ery ▁( by ▁Kay , ▁H arg re aves ▁and ▁Ar kw right ), ▁along ▁with ▁the ▁development ▁of ▁turn pi ke ▁roads ▁( 1 7 5 1 – 1 7 8 1 ), ▁helped ▁to ▁develop ▁the ▁new ▁cot ton ▁industry ▁and ▁to ▁increase ▁the ▁local ▁population . ▁▁ 1 9 th ▁century ▁In ▁ 1 8 0 1 ▁most ▁people ▁still ▁lived ▁in ▁the ▁u pl ands ; ▁Tod m orden ▁itself ▁could ▁be ▁considered ▁as ▁a ▁mere ▁village . ▁ ▁During ▁the ▁years ▁ 1 8 0 0 – 1 8 4 5 ▁great ▁changes ▁took ▁place ▁in ▁the ▁communic ations ▁and ▁transport ▁of ▁the ▁town ▁which ▁were ▁to ▁have ▁a ▁cru cial ▁effect ▁on ▁prom oting ▁industrial ▁growth . ▁These ▁included ▁the ▁building ▁of : ▁( 1 ) ▁better ▁roads ; ▁( 2 ) ▁the ▁Ro ch dale ▁Canal ▁( 1 8 0 4 ); ▁and ▁( 3 ) ▁the ▁main ▁line ▁of ▁the ▁Manchester ▁and ▁Le eds ▁Railway ▁( 1 8 4 1 ), ▁which ▁became ▁the ▁Lanc ash ire ▁and ▁York shire ▁Railway ▁in ▁ 1 8 4 7 . ▁This ▁railway ▁line ▁incorpor ated ▁the ▁( then ) ▁longest ▁tunnel ▁in ▁the ▁world , ▁the ▁ ▁Sum mit ▁T unnel . ▁ ▁A ▁second ▁railway , ▁from ▁Tod m orden ▁to ▁Burn ley , ▁opened ▁as ▁a ▁single ▁line ▁in ▁ 1 8 4 9 , ▁being ▁double d ▁to ▁meet ▁demand ▁in ▁ 1 8 6 0 . ▁ ▁A ▁short ▁connecting