All in same boat?

 

In the other makes of GPSs, (Magellen, Tom Tom), do they have the same map mixups as Garmin? Do they all get their info from NavTec, or who ever? I thought my RX auto did. I noticed on my Garmin, my physical address is in the wrong area on map.

--
nuvi 1390 LT, nuvi 1450 LMT, Vista, Win 10

How far off?

When you say your physical address is in the wrong area, are we talking a couple hundred yards up the street or miles off?

Many of the older GPS units will be off by up to hundreds of feet/yards or showing the wrong side of the street due to the way the GPS figures out where an address should be. Your nuvi 1390 and 1450 are included in this "older GPS units" issue.

The newer nuvi models are much better at locating actual addresses. See:

http://www.poi-factory.com/node/42527

specifically,

Logical addressing is common in older Garmin devices. This method assigns a general area to each address. For example, if a stretch of road is known to contain house numbers from 100-199, the placement of addresses along that road is estimated.

This means that 150 would be placed in the middle of the stretch of roadway, even though it may be located some distance from the center. Since the addresses may not always be spaced evenly. This is why sometimes the address shows on the wrong side of the street or is located further down the street then it really is.

I need to upgrade

CraigW wrote:

When you say your physical address is in the wrong area, are we talking a couple hundred yards up the street or miles off?

Craig, you are correct. Although it is across a main cross street,
it is a few hundred yards off.
Do you know how many companies supply info to the
GPS units? Hand held or indash?

--
nuvi 1390 LT, nuvi 1450 LMT, Vista, Win 10

Maybe someone else can help

jbees60 wrote:

Do you know how many companies supply info to the
GPS units? Hand held or indash?

Sorry, I don't know.

Navteq

jbees60 wrote:

In the other makes of GPSs, (Magellen, Tom Tom), do they have the same map mixups as Garmin? Do they all get their info from NavTec, or who ever? I thought my RX auto did. I noticed on my Garmin, my physical address is in the wrong area on map.

It is my understanding that while Garmin uses Navteq, I don't believe all GPS makers do. I have used their (Navteq) error reporting page to identify errors and gave them enough info (coordinates and Google Earth snapshots) and noted that these correcttions took in the next update or two.

Geocoded addresses continue to be a problem but seem to be getting better. A common issue is that you input a street address and the GPS takes you to the wrong end of the block or worse. Some of this has its roots when jurisdictions renumbered street address to build a standard for the 911 emergency dispatch system. Others are miscoded because of the algorithm used to define where an address is. I had this discussion with them several years ago and received an answer I understood but it didn't fix the issue then. In my case, I live on a street that is only 1 block long with 5 homes on each side. For whatever reason the city planners used, the houses are numbered 1006 through 1015, even on one side, odd on the other. If i were to input 1015 I would expect the GPS to take me to the west end of the block where 1015 really is, but it took me to the other end of the block. Navteq's reply was that they consider a block to include 100 addresses, in my case the block was considered to be the 1000 block and would have numbers from 1000-1099. With that logic, 1015 would be 15% from the east end of the block. That was 5 years ago and they must have refined the algorithm as Google Earth, Bing and Navteq Here as well as my nuvi now all show 1015 where it really is. As time goes on and updates come out, I believe all of this will get better.

If your situation warrants a fix, by all means submit it to Navteq with enough info that they can investigate it. At a minimum, they may be able to place your address where it really is, especially important if you have a business at that location and some customers may use a GPS to find you. It may also highlight a flaw in their process that they can address that may fix other issues besides the one you reported.

--
"There's no substitute for local knowledge" nüvi 750, nüvi 3597

UPS

TXRVer wrote:

If your situation warrants a fix, by all means submit it to Navteq with enough info that they can investigate it.

I thought about sending in a report but almost
no one is trying to find me.
I wish I had the system that United Parcel Service has. They always find my house.
Thanks all for the comments.

--
nuvi 1390 LT, nuvi 1450 LMT, Vista, Win 10

TomTom

TomTom uses TeleAtlas. Unlike Here.com/Navteq, you cannot access this data directly from the map supplier, but Mapquest uses TomTom data. In my area at least, this map data is MUCH less detailed and accurate than Here.com's.

mine uses a

jbees60 wrote:
TXRVer wrote:

If your situation warrants a fix, by all means submit it to Navteq with enough info that they can investigate it.

I thought about sending in a report but almost
no one is trying to find me.
I wish I had the system that United Parcel Service has. They always find my house.
Thanks all for the comments.

Oujia board

--
Never argue with a pig. It makes you look foolish and it anoys the hell out of the pig!

Navteq has changed their name to "HERE"

Here (Formely Navteq) supplys the majority of the maps for portable GPS equipment and most of the built in navs in vehicles. They seem to have the most up to date North America map database and according to their website they supply the maps in four out of five factory installed vehicle navigation systems in both North America and Europe.

http://allthingsnav.navigation.com/page/shop-update

http://here.com/abouthere/?lang=en-US

TeleAtlas supplies mainly TomTom and seems to be more associated with the European maps and devices.

--
GM Built-in Navigation system - Samsung S6 Edge+ Smartphone with Garmin Viago, Google Maps & HERE Apps

Now if we could only get

Now if we could only get reasonable operating systems in factory systems and the ability to add POIs...lol

maps are much better

than they were 10 years ago. Ten years ago, when navigating to a street address, the best you could get was within a few blocks as the actual street address locations did not match lat/long physical addresses. Now, my GPS brings me to the exact location practically every time. I haven't seen real physical addresses mismatched with what is on the map in quite some time.

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___________________ Garmin 2455, 855, Oregon 550t

thanks for the invite but .....

I don't wanna be in the same boat... I wanna be in a boat all by myself.. That way when it sinks I can blame everyone else but me smile

--
Never argue with a pig. It makes you look foolish and it anoys the hell out of the pig!

I just bought my first Garmin (3597) in years...

overall, Tom Tom mapping is more accurate in my area at least BUT not so much that it really gets you lost...the most prevalent problems I have with Garmin are bizarre routing and addresses on the wrong side of the street...that said, and I hate to admit this, the 3597 has been a pretty cool toy so far wink

--
"You can't get there from here"

two primarily

jbees60 wrote:

Do you know how many companies supply info to the
GPS units? Hand held or indash?

There are two primayr providers, Here (Navteq) owned by Nokia and TeleAtlas owned by Tom-Tom. Google, Bing, and Apple have their own napping departments but don't provide maps for GPS units. OSM or Open Street Maps is an open source mapping service originally based on US Coast and Geodetic Survey data bur has grown to provide street level maps for most areas arounf the world. Garmin units can uuse OSM data and do routing using the maps. I don't think OSM works on Tom-Tom or other units though.

--
Illiterate? Write for free help.

Mapping issues

I have owned TomToms and Garmins and currently have Garmins in all of my cars as I have found their maps to usually be more accurate, especially if venturing into more rural areas. I have been out in the "middle of nowhere" on US Highways that I know have been there for five years or more that were not on the TomTom but the Garmin had them.