Traffic flow warning indicates slow traffic ahead on my D3. I am then asked if I would like to re-route. How do I interpret the presented data? Does the +15 min indicate that the mileage slowdown will add 15 minutes to my anticipated arrival time (and is this number automatically adjusted in the destination time) Am I also being presented with the length of the traffic delay (in miles)? How do I compare times/mileage with an alternative route?
Thanks!