The metro line forms the backbone of the metro system, enabling safe and reliable travel. The West Metro section extends 21 kilometres from Ruoholahti in Helsinki to Kivenlahti in Espoo.
The line runs entirely underground in two parallel tunnels and consists of two tracks, one serving eastbound traffic and the other westbound traffic. The underground alignment supports sustainable urban development by freeing surface areas for housing, services and other city functions. As the metro operates independently of weather conditions, it provides reliable and predictable travel year-round.
Safety as part of the rail infrastructure
Safety has been integrated into both the structures and technical solutions of the West Metro. The two parallel tunnels improve operational resilience and safety: in an emergency, passengers can be evacuated to the adjacent tunnel through fire-compartmented cross passages located along the route.
The rail tunnels also include dedicated evacuation routes that enable safe passenger evacuation in exceptional situations, such as a fire or power outage.
The safety and reliability of the metro are further supported by extensive technical systems that ensure safe operation under both normal and exceptional conditions.