Unusual routing with latest Garmin map update

Discussion in 'Mapping & Navigation' started by FredRydr, Apr 20, 2012.

  1. FredRydr

    FredRydr Danger: Keep Back 500 Ft.

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    I've had several weird routing incidents in both my Zumo 665 and in BaseCamp for Mac since the last quarterly map update of North America City Navigator. Routes would follow roads that are neither faster nor more direct. In BaseCamp, the route would not continue straight along a major highway near my house, as though there was a disconnect in the map, but instead route miles around a 0.1 mile section. In the Zumo, the route turned to take a miles-long triangle off another local road I was traveling, again neither faster nor more direct. These are only two representative examples of repeated incidents. The avoidance settings are all okay.

    I've had glitches like this over the years attributable to map data errors, and sometimes I reported them to NavTeq, but these seem to be errors due to software.

    Anyone else?

    Fred
    #1
  2. Riteris

    Riteris Dessert Runner

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    All the time.

    I find it incredibly frustrating that I make the effort to plan a route and the gps sends me off on loops around neighborhoods, down out of the way dirt roads and practically into people's back yards.


    If I was even a bit dumber, I would not be surprised to find myself riding into a canal.:wink:
    #2
  3. danham

    danham Been here awhile

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    Are the errors mostly in routes you created prior to the new version? New map versions can really wreck existing routes, especially ones which use shaping points.

    Also, this latest version seems to treat avoidances a bit differently. I had a route that I created three years ago "blow up" on me with this latest update. After a lot of head scratching I figured out that the map now considers a very short segment of a paved county road in northern NY to be dirt and so with avoid dirt checked, it routed me 50 miles out of my way (In BaseCamp Mac).

    Zoom way in on your 0.1-mile section and see if there's anything that triggers an avoidance. Try unchecking all avoidances to test this.

    -dan
    #3
  4. FredRydr

    FredRydr Danger: Keep Back 500 Ft.

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    Neither of these were old Garmin files or data.

    In the Zumo example, I had just chosen a favorite destination and let the GPS calculate. I know the route, but I like to have the arrival time displayed. I drove for two hours, getting close to arrival when I see the route deviation. As I waited at a traffic light before I reached the erroneous deviation, I chose GoTo the same favorite, let it calculate again, and the deviation was not included in the new route.

    In the BaseCamp example, I did exactly what you recommended, because I could experiment from the comfort of my chair, and the only way I could force BaseCamp to follow the expected route was to precisely locate a via point within that 0.1 section. Even that took a few tries, because not just anywhere in that short section worked. Just now, I ran a route through that same section, and the error did not repeat. Perhaps I should have quit and reopened BaseCamp in my Mac the first time around.

    Fred
    #4
  5. ezrdr55

    ezrdr55 Been here awhile

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    Three left turns do eventually equal one right turn, but I too am finding this very frustrating. And what’s even worse I paid for this “update”.:puke1
    #5
  6. Lazy_John

    Lazy_John Adventurer

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    Yep, this is getting old real fast... :puke1 planning routes via known places, and it plots things very awkwardly. Used all possible profiles and such.
    #6
  7. FredRydr

    FredRydr Danger: Keep Back 500 Ft.

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    Here is Garmin's solution:

    Thank you for contacting Garmin International. I'm happy to help. I would recommend ensuring the the software on your GPS device is up to date.

    Next, you may also need to verify that there are no updates for your BaseCamp program. You can do this by clicking from the Basecamp Menu, Help > Check for software update. If you still have issues, you may need to reset your device.

    I could have predicted this reply to my support request, but I understand the need to start with a clean slate to isolate the problem. Everything is up to date (I already informed them of that and I expect these are boilerplate responses). I suppose they haven't had enough complaints to see it as an issue with their product. Fair enough, I will do the reset and reinstall software and maps <sigh!>, and then we'll see.

    Fred
    #7
  8. widebmw

    widebmw Been here awhile

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    Thank you.
    I was going to update my maps but now I will wait until next fall.
    #8
  9. BigDogAdventures

    BigDogAdventures Fart Letter

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    Yeh-------I've kind of learned to deal with all the routing issues over the years. I mostly let the gps "suggest" where to go----but don't necessarily follow it.

    The funniest one was when I was riding in an Indian reservation in Aneth, Utah-----------my gps autorouted me across the San Juan river-----me and my son got there and just started laughing.

    We walked it. :D:D:D:D I think we could have rode across the swinging bridge---but the steps going up to it were scary.

    [​IMG]
    #9
  10. FredRydr

    FredRydr Danger: Keep Back 500 Ft.

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    That funny result was probably due to a map error, rather than the kind of anomalies that are repeatedly happening since the last updates. The software is now making weird choices, notwithstanding available routes.

    Your walking bridge route reminds me when I first bought a Garmin, and it insisted I exit the Pennsylvania Turnpike through a locked gate behind a service plaza. I reported the error to NavTeq, and after a year or so the updates eliminated that route (as tempting as it might have been).

    Fred
    #10
  11. Riteris

    Riteris Dessert Runner

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    Garmin blames it all on Navteq rather than their software for that sort of thing.:norton
    #11
  12. mbazinet

    mbazinet Mbazinet

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    I got routed today onto a road that was paved and then turned to dirt then ended at a locked gate! My son dumped his Harley trying to turn around and i had to wrestle with my Goldwing he thinks i am an idiot all the while i feel better you folks are having the same issues ! Yah did my map update b4 we departed for the trip.
    #12
  13. wbbnm

    wbbnm Long timer

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    Being routed to a locked gate has always been a problem and probably will be for a long time. Until locked gates become part of the database.

    One pretty good way to avoid locked gates is to not try to ride minor roads on private land. But determining private land can be difficult. I try to find BLM maps for areas. These show land ownership.
    So do the older versions of the Road and Recreation maps for some states. On public lands you are only supposed to be riding on approved roads, so you can check out the Travel Management and MVUM maps.

    My experience is that you can never trust autorouting. I usually can eliminate unwanted loops by putting in via points exactly where I want to go.


    I the case of map defect loops I just put vias just before and after the defect and then delete the loop from the converted track. I try to always navigate by using tracks.
    #13
  14. DRTBYK

    DRTBYK All Things GPS

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    Not to criticize, but when you decided to let the GPS route you, did you set your Avoidances to avoid Unpaved Roads? Since you two were riding a Goldwing and a Harley, I don't expect you were interested in Forest Roads but you are obviously adventurous or you wouldn't be letting the GPS route you as it chooses.

    Digital Maps cannot protect you from this type of route calculation and the GPS Routing Algorithm doesn't know you ride a Goldwing and that dirt roads are not fun for you. As for private land (locked gates) that is rarely coded into the average GPS digital map. If that is of interest to you, there are specialized digital maps that you can load on to your GPS as wbbnm alluded to.
    #14
  15. bkg123

    bkg123 Been here awhile

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    We have a lot of logging around here (Oregon) and the FS roads have gates scattered all over the place. Picking up FS maps, or hunting maps, then comparing them to what you see in basecamp can really help when wandering off onto those gravel roads. Its all part of the 'Adventure'.
    #15
  16. Grinnin

    Grinnin Forever N00b

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    Delorme atlases show lots of the gates in this area. Perhaps not every gate is there, but most of the gates are there.

    Do Delorme GPSs show gates and route around them? The company definately has the data.
    #16
  17. smbjm

    smbjm Been here awhile

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    DeLorme has the data but those Gazateers are not in digital format.
    #17