 Ramba uchinyora ndima iyi - Njanji refu yeTrans-Iranian kubva kuBandar Torkaman paGungwa reCaspian kuenda kuBandar Shahpur paPersian Gulf yakavhurwa panguva yekutonga kwaReza Shah Pahlavi muna 1939. Njanji yacho yakavakwa nechitima chairema makirogiramu 33 uye yaida mabhiriji anopfuura 3 000. Makanga mune migero 126 mumakomo eZagros. Yakarebesa yaiva makiromita 1.5. Avhareji yezvikoro yaiva 1.5 muzana kumaodzanyemba kweTehran, asi ipapo yakawedzera kusvika ku2.8 muzana kuyambuka mhiri inopfuura mamita 7,270 pakati peTehran neGungwa reCaspian. Pashure pokupinda kweAnglo-Soviet muIranmuna 1941, iyi Persian Corridor yakava imwe yenzira dzekutengesa zvinhu zvehondo zveSoviet Union muHondo Yenyika II, Railway maitiro muIran. VaBritish vakavaka mutsara webazi kubva pabhiriji rakareba mamita 900 pamusoro peRwizi Karun muAhwaz kuenda kuchiteshi chitsva chekumaodzanyemba kuKhorramshahr parwizi rweShatt al-Arab. Muna 1943 varwi veAmerica 3,473 veMasoja Railway Service vakatanga kumhanya nezvitima pakati pePersian Gulf neCaspian Sea vachishandisa ALCO RS-1 locomotives yakavakwazve nemarori matatu-axle uye yakasarudzwa RSD-1. VaAmerica vakagadzira dzimbahwe muAhwaz, asi vakanga vasingakwanisi kutsungirira kupisa kwemasikati, uye kazhinji vaishandisa njanji usiku. 