prberg
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Duplicate cities in GPS

Wed Jan 12, 2011 12:57 am

Has anyone else seen this problem? When I go to use the GPS and try to enter an address, I start to enter the city name and a few times it lists the same city twice in the list. It's annoying since sometimes I choose the 'wrong' city and the street will not be listed. If I select the other city then the street with show up. Some bad map data? Will Nissan give us updates to fix these type of bugs?

thanks,
Peter

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garygid
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Re: Duplicate cities in GPS

Wed Jan 12, 2011 1:34 am

They might be real sections of a city, not duplicate data.

Perhaps they have different zip codes.

Near here, San Clemente seems to be "split" in some way, at least on the "incomplete" Prius-Nav data.

Who supplies the LEAF maps?

Do they have "complete" USA coverage, with both the "48" and two "others"?

Is Canada included?

How many POIs?
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Re: Duplicate cities in GPS

Wed Jan 12, 2011 9:18 am

I have this issue on a JVC unit. It appears there are some duplicate entries there too. It's not clear to me how to tell the difference as to which I should choose, "Sacramento" or "Sacramento, Sacramento" (although due to character limits the second one was not showing completely). The item behind the comma is the county. But for some odd reason the street I entered in the (wrong) choice was taking me god-knows-where ... I eventually aborted the guidance, chose the other one, and finally got to my destination after a major detour.
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jkyu99
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Re: Duplicate cities in GPS

Wed Jan 12, 2011 11:55 am

Its a bug, but probably no one would ever tell a dealer. And if a dealer was told, no one would tell the original map maker. But if they did, the next scheduled update for the in dash unit may never show up. That is my Toyota experience and why I find a new garmin portable every few years is better for me. In the old days, it was why I used to buy a new thomas road guide every few years and recycle the other. My hope is that Nissan, with an over the air update function, could avoid that issue. We would still need some easy way to give them feedback when an error is found in the mapping software. Something very very easy, like an in-car, report the error - function, maybe via a cellphone connection to a voicemail.

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garygid
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Re: Duplicate cities in GPS

Thu Jan 13, 2011 6:35 pm

We have no evidence that map streets or POI are updated over CARWINGS. Just some special "POI-ish" category of charging locations, and none of those are yet reported.
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wgs1912
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Re: Duplicate cities in GPS

Wed Jan 19, 2011 6:45 pm

garygid wrote:Who supplies the LEAF maps?

Navteq supplies the map data for Nissan and most other car makes. You can also report errors on thier website.

http://www.navteq.com/

Most all the new nissan models use a SD card for map data. That is what I understood the leaf was going to use. You purchase updates thru Navteq as well. The new maps come out around oct. or nov. each year.
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EVNation
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Re: Duplicate cities in GPS

Tue Jan 25, 2011 1:11 am

The Nav data is indeed on the SD card in the right SD slot in the nav system. You get to it by tilting back the display and removing the little cover.

There is a second SD port for you to save address books to so you can transfer them between cars. This is in a proprietary format that I have not found any documentation on and is not easily edited. Though I am working on it.

DaveinOlyWA
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Re: Duplicate cities in GPS

Tue Jan 25, 2011 6:01 am

i think its related to how the data is gathered. i think a lot of it it supplied by multiple sources causing duplications based on different spellings, punctuation, etc.

my Prius does the same thing. it also does it on streets where it will list

4th ST
4 St
4 St SE

when they are all one in the same. it does not seem to matter which you pick.

another example; my parents lived on Alder St SE in Lacey, their house # is 1608. they live between 14th street and 15th Street....figure that one out. yep, there are 4 houses; 1602, 1604, 1606 and 1608 that were put on the new numbering system while existing houses were allowed to keep their old number. the house next door to my parents is #1470.

so u c; making a map might not be as simple as you think
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garygid
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Re: Duplicate cities in GPS

Tue Jan 25, 2011 8:48 am

Some cities have two (or more) zip codes, and some Mapping Data can be organized by zip codes, making it look, to some "map-searching" software, like there are two "different" cities.

I think San Clemente, CA (92672, 73, 74) is one (small) example of such a city that can show up on my 2010 Prius Nav as several "cities" (if the street that I am looking for exists in more than one zip code with the same city name).
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Re: Duplicate cities in GPS

Wed Feb 09, 2011 9:27 am

prberg wrote:Will Nissan give us updates to fix these type of bugs?
Have you reported this problem to Nissan ?
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