A trains will run between Helsinki and Leppävaara during the service disruptions. The service frequency of A trains will be increased to every 10 minutes on Saturdays from 9am to 9.30pm and on Sundays from 10am to 9.30pm. At quiet times such as in the late evening, A trains will run every 20–30 minutes. Up-to-date timetables are available in the Journey Planner.
The disruptions will affect commuter train services from Leppävaara towards Kauklahti, Kirkkonummi and Siuntio. In August/September, train services will be disrupted on 31 August–1 September, 7–9 September, 14–15 September, 22 September, and 29 September. Westbound train services from Leppävaara will be replaced by buses 211E, 211U and 211X. The replacement buses will depart from bay 11 in Leppävaara. The buses will stop at all intermediate stations or near the stations. For up-to-date routes and timetables, see the Journey Planner.
The Espoo City Rail Link project of the Finnish Transport Infrastructure Agency entails the construction of two new tracks between Leppävaara and Kauklahti. Once completed, the rail link will improve the punctuality of commuter train services in Kirkkonummi and Espoo as well as the punctuality of long-distance train services in the direction of Turku. In addition, improvements will be made to the Kilo, Kera, Kaunainen, Koivuhovi, Tuomarila and Kauklahti train stations. The project started in spring 2021 and it is scheduled to be completed in 2028.