In the MetropAccess project, we have produced GIS datasets concerning accessibility issues in the Helsinki Region.
Datasets are freely available for download from these pages:
Helsinki Region Travel Time Matrix (Pääkaupunkiseudun matka-aikamatriisi)
Helsinki Region Travel CO2 Matrix (NEW!)
Timetable data for MetropAccess-Reititin (Kalkati-data)
Tools related to these data sets can be found here!