On Sunday 21 May about 10am-10pm N trains will run only between Tikkurila and Kerava due to track work. N trains from Helsinki from 10.18am to 9.48pm will be cancelled and these trains will only run from Tikkurila to Kerava. N trains from Kerava 10.17am–9.47pm will terminate at Tikkurila.
Passengers going to Helsinki will have to take an I, R or Z train to Tikkurila and change to an N train there. Likewise southbound passengers from the stations between Kerava and Tikkurila have to change to a P, R or Z train at Tikkurila. R and Z trains from Kerava to Helsinki run as usual, stopping at Tikkurila and Pasila.
In addition, the track works cause delays to other train services.