Streetside Turn Restrictions

We are using street signs extracted from Microsoft Streetside imagery as one source of corroborating ground truth to validate turn restrictions and road directionality in the US.

• The date indicates the time when the extraction took place, not when the imagery was captured
• The data are all available in raw geojson format
• Because the source imagery can be dated we rely on a number of different signals including imagery, GPS traces, probe data, lane markings and anything else which might help make a final determination.

The source geojson can be directly accessed here:

Febuary 2018 Extractions

June 2018 Extractions

September 2018 Extractions