From Tuesday 17 January to Friday 20 January 2017, all tracks north of Kerava will be closed to train traffic from 1.05am to 4.45am. The closure affects T train services between Helsinki and Riihimäki.
T trains from Helsinki at 1.48am will terminate at Kerava. A replament bus will run from Kerava to Järvenpää, from where passengers can continue to Riihimäki by train leaving at 2.55am.
T trains from Riihimäki at 3.12am will terminate at Järvenpää. A replacement N train will continue from Kerava to Helsinki at 4.10am. The train will arrive in Helsinki at 4.44am, i.e. 21 minutes later than the normal T train.
The same arrangements will continue over the next two weeks (24-27 January and 31 January -3 February).