Determining lanes for map navigation is a big problem. I had a buddy that was responsible for mass export of Verizon telemetry data from Verizon to a third com

Determining lanes for map navigation is a big problem. I had a buddy that was responsible for mass export of Verizon telemetry data from Verizon to a third company. Their "holy grail" was to be able to determine lanes through triangulation in a timely manner (2008-2009ish). Don't know if the problem ever got solved and it would have only been relevant in dense metropolitan areas.