User:Koninklijke/source and survey

This is the second subpage, dealing with a variety of keys to record the provenance of the information : Source, Survey and Mapillary seem the most important ones the clarify; what if the mapper visited a way, noticed new asphalt but didn't realise that the road width had changed from two lanes to one?

source:maxspeed=BE-VLG:zone50 + source=survey + survey_date=yyyy-mm-dd