Railway line construction projects are extensive, and their planning is implemented in phases. The Finnish Transport Infrastructure Agency was responsible for the planning phases completed earlier. Turku One Hour Train will be responsible for track design for the project. After this phase of the planning is completed, the One Hour Train project can move to the construction phase.
According to the proposed schedule, the planning should be completed by the end of 2023.
In April 2021, the track design phase is in progress for the rail section between Espoo and Salo, and the rail section between Salo and Hajala. The next step during 2021 will be to initiate the track design phase for rail sections located further to the west.
If the project goes according to plan, the construction will be fully completed and the railway lines ready for traffic at the end of 2031.