https://vayla.fi/avoindata/inspire

From the dataset abstract

FTIA INSPIRE Transport Networks Theme Dataset is a dataset depicting the Transport Networks covering the whole of Finland. It contains the following INSPIRE feature types: Road network, Rail network, Waterway network and Air transport network.

The dataset is available via the FTIA INSPIRE Download Service (WFS) for Transport Networks and it can be viewed via the FTIA INSPIRE View Service (WMS) for Transport Networks.

Source: FTIA INSPIRE Transport Networks Theme Dataset