WFS API

From the dataset abstract

City of Helsinki's traffic routes (centreline data) contains digitised centrelines of pedestrian, cycling and vehicular traffic routes in Helsinki. They are classified according to the design guidelines for street and cycle traffic. Characteristics include bridges and underpasses, one-way and two-way cycling routes and hierarchy. Light traffic route types and multiple parallel lanes have been combined into a single line.

The data is available for download in several formats, including JSON, KML, GIF, Tiff, GeoTiff, JPEG, PNG CSV, Esri Shape. Available formats can always be found under OutputFormat in the GetCapabilities query for the service.

Coordinate systems:

• Maintained in ETRS-GK25 (EPSG:3879), can be projected to other coordinate systems. See GetCapabilities query for other possible coordinate systems.

API addresses:

• WFS API: https://kartta.hel.fi/ws/geoserver/avoindata/wfs

WFS layers:

• Liikennevaylat

Features:

• id: Unique identifier of the object
• uuid: Unique identifier
• paatyyppi: Upper spesification of the road type
• alatyyppi: More spesific road type
• silta_alikulku: Indicates whether the road is on a bridge, underpass or at ground level
• yksisuuntaisuus: Indicates whether the street is one-way
• hierarkia: Hierarchy
• nimi: Name
• pituus: Length of the line
• lisatietoja: More information
• yhtdatanomistaja: Name of the owner of the data
• paivitetty_tietopalveluun: Date of update of the data (yyyy-mm-dd)
• geom: Geometry of the object

Source: Helsingin liikenneväylät