| Originally posted by The Pentium Guy@Nov 9 2004, 06:31 AM |
I'm just wondering what your opinion on the NAV is......
is it worth it? Are most of the roads "Not Available?" If you miss a turn, will it 'recover' ? :P stuff like that.
-The Pentium Guy
I got NAV on my wife's Mini a couple of years ago and just got NAV on my 545 and like it a lot. Virtually all roads are on it and it is pretty accurate. In my experience, it'll usually get you where you want to go but it's not perfect. For example, it bases its routing on digitized maps and an algorithm that chooses the shortest distances. Thus, it will sometimes take you through more congested areas than you'd use if you knew your way around. For instance, to get me to my office, it would have me enter the Beltway (I-495) at the Van Dorn Street on ramp. But everyone knows that is a poorly designed and abysmally engineered intersection and that it's quicker to go elsewhere.
Another annoying feature is that the voice does not pronounce the street names but simply tells you to "turn right". the street name does show on the guiding map and the voice does pronounce street numbers (ex., "I-95")
But,as I said, it'll usually get you there if not by the most efficient route. Also, if the roads change, it'll be hopelessly confused. My wife's Mini has suggested she drive into a lake near us because a road that used to be there no longer is.
If it's guiding you somewhere and you deliberately (or accidently) take a wrong turn it simply recalculates the route and guides you from there. At first it might nag at you to do a u-turn but eventually gives up on that that and comes up with a new route altogether. For example, assume you are going somewhere but the traffic gets badly backed up owing to an accident so you jump off the freeway at the first available exit. The NAV computer will figure out where you are and recalculate the route and get you to your destination by altrenative roads.
All-in-all, it's pretty useful, especially in an area you are unfamiliar with. But I 've lived in the DC area for over 30 years and I still occassionally have to drive somewhere unfamiliar and I find the NAV very damn useful.
Also, you can store addresses in its memory so they are always available. Obviously, one of the first places you'd store in your home so you can always get back from no matter where you are.
Now, BMW uses NACTECH which is not without its faults. it has an awkward interface that so typifies BMW. For example, to enter an address you have to turn the iDrive wheel untill you get to the first letter in the destination's address. Then you twist it to the next letter and so on. As you might expect Accura, for instance, has done a much better job with interface than the Germans. But, for all its faults, I still like the BMW system.