I'm a user of Waze in the United Kingdom.

When driving around major cities on ring roads (eg M25 around London), I need to know when to exit the ring road - not when to remain on it. But Waze will tell me to take the M25 for several junctions (maybe 25 miles), and remain on the M25 at a certain junction, and then - once I've passed that junction - to exit the M25 at a junction further on (maybe another 15 miles).

Much better, when entering the ring road, to be told to remain on the road until I have to exit in 40 miles.

I hope that makes sense...