MyGeotab: Where does Geotab get posted road speed data from?

The speed limit data comes from OpenStreetMap (OSM) and HERE WeGo (formerly HERE Maps).

Users can update posted road speed from the MyGeotab Map or the OpenStreetMap website. An update from MyGeotab will instantly affect all other MyGeotab users. User-submitted data is collected and exchanged with the OSM community monthly.

When there is more than one speed limit data, our system takes the speed limit data according to the following priority levels:

1. OSM Real/User Inputted values
2. HERE WeGo
3. HERE WeGO Estimate
4. OSM Estimate

• Speed limit data for specific roads can be reverted to OSM estimates if a user edits the shape of the road in OSM, generating a new road ID.
• Documentation on the OSM speed limits can be found here , while documentation on OSM estimates of speed limits can be found here.
• "OSM Real/User Inputted Values" can be defined as values inputted by users directly on https://www.openstreetmap.org
• "HERE WeGo" values are defined as the data pulled from the HERE WeGo web mapping application. HERE WeGo relies on local source data and input from map users to generate constant daily map updates
• HERE WeGo has a Map Creator tool where they verify the information edited by users and apply it to their maps once it's approved
• A basic explanation can be found here - "Web mapping has brought many geographical datasets, including free ones generated by OpenStreetMap and proprietary datasets owned by HERE, Google, Tencent, TomTom, and others. A range of free software to generate maps has also been conceived and implemented alongside proprietary tools like ArcGIS."
• An article on how to view this data in MyGeotab can be found here.
• Also see: How Long Does It Take For Speed Limit To Be Updated?