Ainola reopens as Finland's busiest railway gains another track

A station project changes more than the station

Ainola's rebuilt railway station is opening with covered waiting areas and accessible routes to the platforms. At the same time, a new western track between Kytömaa and Ainola extends the four-track railway north to Purola.

For passengers, those two changes belong together. The station is the part people touch and see. The extra track is the less visible capacity that can help trains move through one of Finland's most heavily used rail corridors with fewer conflicts.

Why a fourth track matters

When fast long-distance trains, regional services and commuter trains share too few tracks, a delayed or stopping train can affect the services behind it. More parallel track gives traffic control more room to separate trains with different speeds and stopping patterns.

It does not make every train instantly punctual, and it does not remove every bottleneck north of Purola. It does create a longer four-track section from Helsinki, which is a practical step in the wider Helsinki–Riihimäki capacity project.

What changes at Ainola

The renewed station has covered waiting areas and accessible connections. These details matter every day: shelter makes a delayed wait easier, while lifts and ramps determine whether a passenger with a wheelchair, pram, bicycle or heavy bag can reach the correct platform independently.

A new station can still feel unfamiliar during its first weeks. Check the departure display and platform for each journey rather than following an old routine. Construction may also continue around completed passenger routes while finishing work is underway.

Work continues elsewhere

The same project brings temporary platform changes at other stations. At Jokela, platform 3 is out of use from 10 August because of construction. Passengers should check the platform close to departure, particularly if they travel a familiar route and normally move through the station without looking at the display.

The important distinction is between a completed piece and a completed programme. Ainola's passenger facilities and the new Kytömaa–Ainola track are major milestones, but the broader main-line improvement continues.

What passengers can reasonably expect

In the short term: a more accessible Ainola station, clearer shelter and changed platform routines. Over time: more railway capacity and more flexibility when different train services meet on the main line.

Infrastructure improvements are often hard to notice once they work. Their value appears in fewer conflicts, more recovery options and a station that more people can use without assistance.

Sources and last checked

The station facilities, new track and current platform changes come from the Finnish Transport Infrastructure Agency's project notice. Information was checked on 13 August 2026. Check the live platform before travel while work continues.