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.