▁trains ▁heading ▁north ▁and ▁south ▁on ▁the ▁single ▁line ▁had ▁to ▁be ▁co - ordin ated . ▁The ▁Cab ool t ure ▁to ▁G ym pie ▁section ▁had ▁reached ▁s atur ation ▁point ▁even ▁before ▁the ▁war , ▁and ▁there ▁was ▁no ▁scope ▁for ▁building ▁crossing ▁loops ▁for ▁trains ▁to ▁pass ▁each ▁other . ▁However , ▁ 3 0 ▁crossing ▁loops ▁were ▁built ▁between ▁Mary borough ▁and ▁C air ns ▁between ▁ 1 9 4 0 ▁and ▁ 1 9 4 5 . ▁Am mun ition ▁trains ▁had ▁priority , ▁followed ▁by ▁tro op ▁trains , ▁and ▁then ▁civil ian ▁trains . ▁Due ▁to ▁the ▁resulting ▁del ays , ▁the ▁Al lied ▁Works ▁Council ▁ere cted ▁special ▁e ating ▁houses ▁and ▁k itch ens , ▁and ▁temporary ▁show ers ▁and ▁to ile ts , ▁alongside ▁appropriate ▁stations ▁to ▁c ater ▁for ▁b ored ▁troops . ▁ ▁The ▁construction ▁of ▁an ▁air ▁ra id ▁shelter ▁at ▁Land s borough ▁railway ▁station ▁was ▁probably ▁linked ▁to ▁this ▁increased ▁w art ime ▁traffic , ▁as ▁well ▁as ▁to ▁government ▁reg ulations ▁regarding ▁the ▁safety ▁of ▁the ▁population . ▁Reg ulation ▁ 3 5 a , ▁an ▁am end ment ▁to ▁the ▁National ▁Security ▁( General ) ▁Reg ulations ▁of ▁the ▁National ▁Security ▁Act ▁ 1 9 3 9 - 1 9 4 0 , ▁was ▁not ified ▁in ▁the ▁Commonwealth ▁Government ▁Gazette ▁on ▁ 1 1 ▁December ▁ 1 9 4 1 ▁( as ▁Stat ut ory ▁R ules ▁ 1 9 4 1 ▁No .