The line will be 750 kilometers long and built on a single track with the standard gauge common in Iran. The maximum gradient will be 15 ‰ with a maximum curve radius of 1000 meters. The line is designed for a maximum permissible speed of 120 km/h for passenger trains and 90 km/h for freight trains. It is planned to transport 1.3 million tons of goods in the first year of operation, which is planned to be increased to 35 million tons within the next 20 years.
Expansion plans
At a later date, the route is to be extended from Zahedan around 800 kilometers north via Mashhad to Seraqs on the border with Turkmenistan. This will create a north–south connection along Iran's eastern border, giving the landlocked Central Asian states the shortest access to a seaport. A branch to Afghanistan is planned near Zaranj to facilitate trade in goods.