Today on the way home from a trip to Miami, I noticed a very odd this with the Nav system. On the left side of the Nav screen, the system showed the next turn was to be in 2 miles BUT on the right side of the screen, the exit was showing as 4 miles ahead. The 2 mile difference continued up until the 'ding' and "Keep Right" voice prompt and the right side picture changed from listing exits to showing the intersection. Has anyone had this problem before? Would a nav disc update fix this? Thanks
Map databases are not perfect. There is one spot on a trip we commonly make where the time to destination jumps by 30 minutes. It always happens at exactly the same spot. Whatever algorithm and data is used for the distance calculation, it has a discontinuity at that spot. Another example is the state of Utah (or was it Wyoming?) On a trip out West last fall, we discovered that the entire state highway system was off by two miles. Our location was correct, and the map showed the exits in the correct spots, but the exit numbers were consistently off by two. It took me a while to figure out what was wrong. An update may or may not fix your problem. It all depends on what gets updated. Tom
There are a few places in my area that have "junctions" that are actually straight ahead. The voice cue is in fact "straight".
I have not noticed it before but will watch for it again and will run the same route to check sometime in the next month. I understand about poor data in/poor data out but what was odd about this is that it was using the same database and reporting 2 different answers at the same time Thanks for the help
On the right side of the screen you are looking at the distance to the next turn along the route. On the left side of the screen, you are looking at the distance to the destination at the end of the route. Two different numbers using two similar but different calculations. Clearly a database/calculation error.
