apa ▁region ▁was ▁di vert ed ▁north ▁through ▁Wood ville ▁and ▁Pal mer ston ▁North ▁so ▁it ▁could ▁be ▁taken ▁down ▁the ▁Main ▁Tr unk ▁Line ▁to ▁Well ington . ▁ ▁M ixed ▁trains , ▁however , ▁continued ▁to ▁operate ▁through ▁Op aki . ▁ ▁A ▁tim et able ▁change ▁in ▁ 1 9 0 9 ▁reduced ▁the ▁hours ▁of ▁attend ance ▁at ▁the ▁station ▁and ▁consequ ently ▁one ▁of ▁the ▁por ters ▁was ▁with dra wn ▁and ▁the ▁Maurice ville ▁por ter ▁provided ▁relief ▁coverage ▁at ▁Op aki ▁one ▁day ▁a ▁week . ▁ ▁A ▁further ▁tim et able ▁change ▁in ▁ 1 9 1 1 ▁resulted ▁in ▁the ▁Op aki ▁por ter ▁being ▁ro ster ed ▁on ▁for ▁an ▁average ▁ 1 1 . 7 5 ▁hours ▁per ▁ordinary ▁day ▁over ▁ 1 6 ▁hours , ▁with ▁extra ▁time ▁required ▁when ▁special ▁or ▁work ▁trains ▁were ▁running . ▁ ▁Comp la ints ▁were ▁made ▁about ▁the ▁long ▁hours ▁required ▁at ▁Op aki ▁and ▁after ▁a ▁tim et able ▁revision ▁it ▁was ▁recommended ▁in ▁November ▁ 1 9 1 9 ▁that ▁Op aki ▁be ▁made ▁a ▁switch - out ▁table t ▁station . ▁ ▁This ▁would ▁reduce ▁the ▁hours ▁of ▁attend ance ▁at ▁Op aki ▁to ▁ 1 0 ▁hours ▁per ▁day ▁and ▁eliminate ▁the ▁need ▁to ▁appoint ▁a ▁second ▁por ter . ▁ ▁The ▁work ▁was ▁approved ▁in ▁August ▁ 1 9 2 0 . ▁ ▁By ▁ 1 9 2 7 ▁it ▁had ▁become ▁apparent ▁that ▁there ▁was ▁ins u