Finnish Transport Infrastructure Agency's Open API's
FTIA aims to make the use of open data as easy as possible. At this site users can find information on open API's and open source applications.
Download and Viewing Service
Open data for road, railway, and waterway network can be accessed through the Download and Viewing Service.
In the download service one can view and download data through a map interface. The user can choose which data to download and from what area. After selecting the data, the service will send an e-mail -link, where the user can download the dataset. Data is available in Shapefile (.shp) -format.
An educative video on how to access open infrastructure data (in Finnish only)
Interfaces for other data collections (Projects, Network Statement, Data service)
Railway network data can be found here.
FTIA also maintains a service for sharing open data files that are of large size (AVA). Via the AVA service users can download, for example, road network and Digiroad data from whole Finland as ZIP-files. Go to AVA service.