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voice_of_reason
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Joined: Aug 24, 2004
Posts: 102
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 Posted: Sat May 19, 2007 2:42 pm Post subject: New postcode file - v701. Why is it all wrong?! |
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I've just installed the new v675 UK & ROI map. The map download came with a 'new' postcode file - v701 ('for TeleAtlas maps', as the tooltip says when I hover over it in TomTom HOME).
I thought I'd install it, as my current postcode file (which came with the old v660 map) was v603. So I guessed v701 was more recent.
My v603 postcode file had a date stamp of September 2006, so I was slightly suspicious that the 'new' v701 postcode file had a date stamp some time in 2005.
Now I've installed the v701 postcode file, it has loads of errors in it, my home postcode (which has always been correct) now places me in a completely different road and there are several other errors like this.
Has anyone else noticed this? Is v701 really new? I think I might just go back to the old postcode file.
Cheers. |
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Oldboy
Pocket GPS Moderator
Joined: Dec 08, 2004
Posts: 10642
Location: Suffolk, UK
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| Posted: Sat May 19, 2007 2:56 pm Post subject: Re: New postcode file - v701. Why is it all wrong?! |
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| voice_of_reason wrote: | | Has anyone else noticed this? Is v701 really new? I think I might just go back to the old postcode file. |
And don't forget to let TomTom know. 
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Richard
TT 910 V7.903: Europe Map v1045
TT Via 135 App 12.075: Europe Map v1120 |
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pete1336
Lifetime Member
Joined: Jul 22, 2006
Posts: 274
Location: North Wales
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| Posted: Sun May 20, 2007 7:03 am Post subject: |
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| This is slightly concerning as I have the latest post code file. Can anyone else confirm it seems to be contain more errors then its predecessor? |
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vroomfondel
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Joined: May 12, 2006
Posts: 224
Location: Hampshire
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| Posted: Sun May 20, 2007 6:41 pm Post subject: |
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Seems ok to me. New small roads near here are known to it.
As for the date, any map data downloaded from TT seems to dated 24/09/2005. The last update was dated the same. |
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Andy_P
Pocket GPS Moderator
Joined: Jun 04, 2005
Posts: 19991
Location: West and Southwest London
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| Posted: Sun May 20, 2007 9:33 pm Post subject: |
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| vroomfondel wrote: |
As for the date, any map data downloaded from TT seems to dated 24/09/2005. The last update was dated the same. |
Did the virus they sent out with Go910s for a while have that date too? 
Why are they so bad at this sort of thing? Simple computer geeky stuff, like always giving version numbers and release dates and getting filenames and dates right, seems beyond them.  |
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DennisN
Tired Old Man
Joined: Feb 27, 2006
Posts: 14893
Location: Keynsham
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| Posted: Sun May 20, 2007 11:50 pm Post subject: |
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Well, here goes. Should I get one of my backup SD cards and copy the up to date SD card, then put the old Postcode files back onto it? Then when I get an apparent error, quickly swap cards to see if the other one has a working postcode location?
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Dennis
If it tastes good - it's fattening.
Two of them are obesiting!! |
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voice_of_reason
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Joined: Aug 24, 2004
Posts: 102
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| Posted: Mon May 21, 2007 11:06 am Post subject: |
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| vroomfondel wrote: | Seems ok to me. New small roads near here are known to it.
As for the date, any map data downloaded from TT seems to dated 24/09/2005. The last update was dated the same. |
But the previous version (603) that came pre-installed on the SD card that I got with my TomTom ONE was dated September 2006? Maybe it's just files downloaded from TomTom directly that have incorrect date stamps?
Oh well, at least the postcode of the house I'm moving to is on there. Just a shame it places it in the wrong town. Still, it wouldn't have mattered if it was correct, because the road that the house is on isn't even on the map anyway. Still, I guess it has only been there for two years. A bit too 'new' to be appearing on sat nav maps yet.  |
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vroomfondel
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Joined: May 12, 2006
Posts: 224
Location: Hampshire
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| Posted: Mon May 21, 2007 12:12 pm Post subject: |
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I'm not clear if you are saying that 701 is missing a postcode thats in 603, or the road is not on the 675 map?
I know of several postcodes that go to the right area but the streets are not like that any more. If I look on a 660.1256 map its the correct road using the same 701 postcode file.
So I suspect the postcode just sets the lat/long and it snaps to the nearest road on the current map.
The 675 map has lots of small roads missing, esp on estates, even those built 4+ years ago. |
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voice_of_reason
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Joined: Aug 24, 2004
Posts: 102
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| Posted: Mon May 21, 2007 12:33 pm Post subject: |
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| vroomfondel wrote: | | I'm not clear if you are saying that 701 is missing a postcode thats in 603, or the road is not on the 675 map? |
Both. Kind of. I've noticed mistakes in the newer postcode file that are correct in older versions of the postcode file. There are roads missing in the new v675 map, but that's a different issue, and they were never in the older maps anyway. They're mostly newer roads on estates near me, but I guess it'll take a few more map releases before they start to show up.
I've not noticed any smaller roads missing on the new v675 map that weren't already missing in older versions. I know some people have complained about this on the full Western European version of the v675 map, but the regional UK & ROI v675 map that I've got doesn't seem to be any worse than the v660 map I was using before (but neither does it seem any better from what I've seen so far!) |
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Oldboy
Pocket GPS Moderator
Joined: Dec 08, 2004
Posts: 10642
Location: Suffolk, UK
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| Posted: Mon May 21, 2007 12:41 pm Post subject: |
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| vroomfondel wrote: | | So I suspect the postcode just sets the lat/long and it snaps to the nearest road on the current map. |
Correct. The Postcode File is just a look-up Table that returns a Lat/Long for the Software to pinpoint a location.
This can be seen in Browse Map when the Cursor is not actually on the highlighted road.
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Richard
TT 910 V7.903: Europe Map v1045
TT Via 135 App 12.075: Europe Map v1120 |
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