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In the UK at least, the data comes from INRIX (ex Trafficlink), who also supply the traffic news to the vast majority of local and national radio stations. They
by andyking 14y ago
In the UK at least, the data comes from INRIX (ex Trafficlink), who also supply the traffic news to the vast majority of local and national radio stations. They have a network of cameras and monitoring stations around the country. I don't believe it's crowdsourced from Android users - although I could be wrong.
Having said that, I much prefer going on the BBC Travel News website (which is the same INRIX data) and looking at it in tabular form. I don't find the red/yellow/green lines on roads particularly useful.