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SouthHams Occasional Visitor
Joined: Nov 06, 2005 Posts: 43 Location: Devon
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Posted: Mon Jan 23, 2006 7:35 pm Post subject: Poor navigation in Devon |
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After driving around now for a few weeks with my Navteq maps I find that the road choices are very poor and at times are likely to cause vehicle damage.
For example, when driving in the South hams between Lodiswell and Kingsbridge on a minor A road the route diverts from the road down a very steep un-made road.
Looking at the displays there seems to be no distinction between roads, except for Motorways and A roads.
This is in sharp contrast with the TeleAtlas maps on my TomTom ONE, which almost always finds the routes a local would choose.
Has anyone else had this experience? _________________ Orange SPV C600
TomTom 920T 8.300 Maps 815.2003 and New Zealand |
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missing_user
Joined: Aug 30, 2008 Posts: -7
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Posted: Mon Jan 23, 2006 8:22 pm Post subject: |
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I use Garmin CitySelect Maps which are based on NavTeq maps.
This is a known problem:-
Quote: | Looking at the displays there seems to be no distinction between roads, except for Motorways and A roads. |
and the best way to overcome this is to set my unit to 'Truck' instead of 'Car'.
I've set the route you mentioned and can supply you with a screenshot of the resultant route.
As this forum does not allow posting of screenshots [jpeg] - if you are interested, send me your email address in a Private Message and I will send you the screenshot. |
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Darren Frequent Visitor
Joined: 11/07/2002 14:36:40 Posts: 23848 Location: Hampshire, UK
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Posted: Mon Jan 23, 2006 9:04 pm Post subject: |
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strumble wrote: | As this forum does not allow posting of screenshots [jpeg] . |
Actually you can post images so long as they are hosted elsewhere, simply enclose the full path in [img] and [/img] quotes.
Alternatively email me the image and I'll host it and post it in this thread _________________ Darren Griffin |
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missing_user
Joined: Aug 30, 2008 Posts: -7
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Posted: Mon Jan 23, 2006 10:10 pm Post subject: |
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I use a Garmin iQue 3600 with CitySelect Europe v7. [January 2005] I enclose two PC screenshots of software on the PC. [Settings-fastest route rather than shortest and ‘main roads’] .
One is with Truck selected.
The other is with Car selected.
If you need other screenshots let me know. |
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SouthHams Occasional Visitor
Joined: Nov 06, 2005 Posts: 43 Location: Devon
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Posted: Tue Jan 24, 2006 12:17 am Post subject: |
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strumble wrote: | I use a Garmin iQue 3600 with CitySelect Europe v7. [January 2005] I enclose two PC screenshots of software on the PC. [Settings-fastest route rather than shortest and ‘main roads’] .
One is with Truck selected.
The other is with Car selected.
If you need other screenshots let me know. |
Thanks for the Info but neither of these are close to the correct route which should follow signed road which goes through Sorley on your map.
My Navteq route is different to both of these !!
The system costs £1750 and this is a very poor result.
Do Navteq read this board? _________________ Orange SPV C600
TomTom 920T 8.300 Maps 815.2003 and New Zealand |
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rossb Regular Visitor
Joined: Nov 17, 2004 Posts: 79 Location: Sheffield, UK
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Posted: Sun Jan 29, 2006 7:41 pm Post subject: |
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I use a Garmin C320. On my C320 I have an option to avoid "unpaved roads". Do you have this option.
I have also found with Navteq, setting the routing logic to fastest rather than shortest helps avoid un-made roads.
Try setting to fastest route, truck and see what happens. Try it again with car. |
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SouthHams Occasional Visitor
Joined: Nov 06, 2005 Posts: 43 Location: Devon
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Posted: Mon Jan 30, 2006 1:01 am Post subject: |
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rossb wrote: | I use a Garmin C320. On my C320 I have an option to avoid "unpaved roads". Do you have this option.
I have also found with Navteq, setting the routing logic to fastest rather than shortest helps avoid un-made roads.
Try setting to fastest route, truck and see what happens. Try it again with car. |
Sorry rossb,
I'm afraid I don't have any options other than "fastest" or "shortest". Just £1750 of useless BMW/Navteq junk.
p.s. The TomTom routes correctly. _________________ Orange SPV C600
TomTom 920T 8.300 Maps 815.2003 and New Zealand |
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Milkfloat Regular Visitor
Joined: Jun 15, 2005 Posts: 61
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Posted: Sat Feb 25, 2006 10:00 am Post subject: |
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Just to let you know on your system the Routing Algorithm is not supplied by NAVTEQ. This is a VDO product. The Maps are from NAVTEQ but how VDO chose to use them is not down to NAVTEQ. |
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alix776 Pocket GPS Moderator
Joined: 03/05/2003 14:45:49 Posts: 3999 Location: leyland lancs ENGLAND
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Posted: Sat Feb 25, 2006 10:38 am Post subject: |
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to be hinest in testing the non factory fitted devices do tend to route better than vdo etc
we have one truck with a vdo daytona systerm and even copilot 5 and 6 produce better routes and tomtom knocks spots off it _________________ currently using aponia truck navigation on windows phone. Good bye IOS don't let the door hit you on the way out .
Oh the joys of being a courier.
device Lumia 950 xl |
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SouthHams Occasional Visitor
Joined: Nov 06, 2005 Posts: 43 Location: Devon
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Posted: Sat Feb 25, 2006 10:55 pm Post subject: |
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Milkfloat wrote: | Just to let you know on your system the Routing Algorithm is not supplied by NAVTEQ. This is a VDO product. The Maps are from NAVTEQ but how VDO chose to use them is not down to NAVTEQ. |
Thanks for the comment Milkfloat but if you follow the thread the problem is also there with the Garmin iQue 3600 with CitySelect Europe v7.
The software predicts the shortest and quickest route but the road classification is wrong on the map. The unsurfaced road is rated the same as the "B" road. _________________ Orange SPV C600
TomTom 920T 8.300 Maps 815.2003 and New Zealand |
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Milkfloat Regular Visitor
Joined: Jun 15, 2005 Posts: 61
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Posted: Thu Apr 13, 2006 12:00 pm Post subject: |
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SouthHams wrote: | Milkfloat wrote: | Just to let you know on your system the Routing Algorithm is not supplied by NAVTEQ. This is a VDO product. The Maps are from NAVTEQ but how VDO chose to use them is not down to NAVTEQ. |
Thanks for the comment Milkfloat but if you follow the thread the problem is also there with the Garmin iQue 3600 with CitySelect Europe v7.
The software predicts the shortest and quickest route but the road classification is wrong on the map. The unsurfaced road is rated the same as the "B" road. |
Again NAVTEQ do not supply the routing algorithms for these products either. There are very very few products that do not use their own proprietary algorithm. Poor route selection is entirely down to the manufacturer of the sat nav unit. |
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rossb Regular Visitor
Joined: Nov 17, 2004 Posts: 79 Location: Sheffield, UK
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Posted: Thu Apr 13, 2006 12:29 pm Post subject: |
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Milkfloat
Southams says the unsurfaced road is rated the same as a B road, so this is a mapping error? Should he report it to Navteq?
To be fair to Navteq, I am sure road classification errors do happen, human error perhaps. |
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Motty Occasional Visitor
Joined: Feb 28, 2006 Posts: 11 Location: Cheltenham, UK
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Posted: Thu Apr 13, 2006 12:54 pm Post subject: |
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Have you checked the road on an OS map? There are a few roads in the Cotswolds near me that my Garmin i3 takes me that are classified as normal roads on road and OS maps but when you get to them they say "Not suitable for motor vehicles". |
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Milkfloat Regular Visitor
Joined: Jun 15, 2005 Posts: 61
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Posted: Thu Apr 13, 2006 6:32 pm Post subject: |
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rossb wrote: | Milkfloat
Southams says the unsurfaced road is rated the same as a B road, so this is a mapping error? Should he report it to Navteq?
To be fair to Navteq, I am sure road classification errors do happen, human error perhaps. |
There 'should' be no way that an unsurfaced road is catagorised as a B road, as all roads that at at that class will have been driven by field personel many times. However, if you submit the error NAVTEQ will send someone down to Devon to check it out. The chances are it will alreday have been picked up, even though it may not be reflected in the software you are using. |
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