Yesterday I was driving home with my daughter who does have a iPhone. So she starts up some app that gives her traffic reports. This was around 4PM heading north on I95 toward Baltimore. Traffic was slow. Should I switch to the Baltimore-Washington Parkway? Which Tunnel should I take? My daughter is giving me reports. So I asked, "How do they get these reports? How do we know it wasn't from some guy flying in a helicopter at lunch time?
I found out. I think. The thing was so d*mn accurate almost to the foot where traffic started to begin moving at normal speed. The only way they could possibly do this is by taking position signals from all the iPhones and seeing how fast they are moving. I think.
ML/NJ
Thanks for this. Now, we/I know how our younger relatives know how the traffic is going or not going with their I phones.
“I found out. I think. The thing was so d*mn accurate almost to the foot where traffic started to begin moving at normal speed. The only way they could possibly do this is by taking position signals from all the iPhones and seeing how fast they are moving. I think.”