[1997BlackETC]

I generally hit in fastest routes, but it seems like it will head me towards the traffic jams and not try to avoid them? I've got good at second guessing it and doing the opposite of what it tells me to do and save a lot of time this way. Today I was heading down rt 41 and it even said there was a traffic jam ahead and was telling me I'd be home at 2:05 PM. I cut headed up a little east to I 75 and it was a clear shot home with no traffic jam and I made it home by 1:50 PM. The GPS all the way back home kept trying to cut me off I75 back onto 41 which run along side it but still showed yellow under traffic and said there was a traffic jam, strange. You'd think since I programmed it as the fastest route it would try to avoid the traffic jam? I could see if I programmed it for the shortest route or something? Any ideas?

 

[Mike02z]

Typically fastest route will look to take you on limited access roads. Depending on where you live and time of day this can lead you right into a traffic jam. I will normally use "shortest" if it is during peak times and driving near a major city. While I have not checked on my V, most NAV systems have avoidance's. Maybe yours is set to avoid highways or toll roads? Somehow I don't think the system is smart enough to equate a traffic jam with the route it picks. You would think it would be simple enough to program but then again the NAV in the V is certainly not "state of the art" by today's standards.

 

[JFJr]

You can have it reroute you around the jam, but you have to request that.

The problem I have is that the "fastest" route many times directs me over busy roads with a lot of traffic signals. If I know the area, I can avoid them, but "Wanda" keeps trying to send me back to the original route for a while. It's a little annoying but the advantages of our system outweigh the disadvantages. Eventually technology will fix that as voice command technology becomes smarter and more natural.

Jud

 

[1997BlackETC]

Yep, I'll agree with it not being state of the art, it has a very slow processor too. I'll experiment around with it some and try shortest and maybe even easiest routes. I do have it set up so as not to avoid any toll roads or highways. Going 41 is definately more direct and less miles than 75, but during high traffic hours with all the traffic lights and congestions especially during high season here in Fla it can be a lot faster to just take 75 and cruise along at 70 mph rather than stop and go 40 mph if your lucky. I just don't know why the nav is not accounting for this even though I do have the XM traffic, I know my Garmin works fine in this way and would have taken me on I 75 because it was quite a bit faster than dealer with traffic jams. I'm really thinking about just letting my XM traffic expire and use my garmin instead of the built in caddy nav.

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Good point, I guess whenever I see the yellow traffic light on the nav I'll try just hitting avoid and see if that works.

 

[Mike02z]

Think of it this way, what was the Garmin like 5 years ago? That is basically the technology in the V. I'll even go so far as to say the Garmin was probably more advanced in 2008 then the V's NAV. It gets the job done but lacks many features of newer, portable NAV devices. The big advantage to the NAV in the V is integration.

 

[thebigjimsho]

Fastest route is what it calculates at the beginning. If it was fastest then, its fastest always in its mind.

As for fast/shortest it doesn't factor slowing down for turns and stoplights. With all greens and no traffic, it probably is fastest.

 

[Crystal Red CTS-V]

Nav's biggest disadvantage is only allowing a maximum of 3 way points along a route. Makes it very difficult to customize a route when you know the nav is refusing to lead you on the best route. The nav in the Corvette is more primitive than the CTS-V's, but it allows a maximum of 5 way points to be stored, which is a lot easier to customize.

 

[1997BlackETC]

I really find the onstar routes on the turn by turn is better than the indash nav. It does not hound me as much either every few minutes.