The project involves the construction of two temporary tracks on the Hjärup - Arlöv section, to be used while the new infrastructure is built.
Four new tracks will then be constructed on the Flackarp - Arlöv section. The line is being expanded to increase capacity.
Three stations at Hjärup, Åkarp and Arlöv will also be rebuilt under the contract.
Work will begin later this year, and is expected to be completed by 2024.