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clockworks Occasional Visitor
Joined: Jul 16, 2006 Posts: 21
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Posted: Thu Jan 01, 2009 9:00 am Post subject: 540 - "unable to find a route" |
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I had to visit a Post Office in a small village in Cornwall yesterday, for the first time. My new 540 found the place no problem, using the postcode.
When I went to leave, I tried to navigate to a POI, but it couldn't find a route. Tried navigate to Home, and to a local town centre, and got the same message.
I was parked in a layby outside the shop, and had a good signal. Drove for 100 yards, and it found a route no problem.
Never had this problem with my old 510. |
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pcaouolte Frequent Visitor
Joined: Dec 27, 2006 Posts: 998 Location: South Lincs, UK.
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Posted: Thu Jan 01, 2009 9:39 am Post subject: |
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Have a look at the roads around the shop where you started your journey using "Browse map".
Is there a tiny break in the road somewhere in the first 100 yards of the route that you took from the shop?
Is the route marked as "one way" (look for small arrows on the map) or "not driveable" (look for a dashed line on the map).
If this finds the problem try to use mapshare to correct it.
If this doesn't find the problem post back here with the co-ordinates of the shop where you started your journey and the version of the map that you are using. Someone with that map will usually be good enough to have a look at the problem on their device. _________________ Paul |
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clockworks Occasional Visitor
Joined: Jul 16, 2006 Posts: 21
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Posted: Thu Jan 01, 2009 10:39 am Post subject: |
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Can't see any errors in the map.
The co-ordinates are:
N 50.21237
W 5.11833
Map version 8.204 |
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mikealder Pocket GPS Moderator
Joined: Jan 14, 2005 Posts: 19638 Location: Blackpool , Lancs
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Posted: Thu Jan 01, 2009 10:50 am Post subject: |
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Entering those coordinates my 940 is quite happy to plan a route from that position, it is possible that when you were parked up in the car the unit thought you were "off road" and therefore couldn't plan a route, once you moved a short distance and reacquired the road (as far as the device thought) it would then plan the route - Mike |
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clockworks Occasional Visitor
Joined: Jul 16, 2006 Posts: 21
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Posted: Thu Jan 01, 2009 11:27 am Post subject: |
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mikealder wrote: | Entering those coordinates my 940 is quite happy to plan a route from that position, it is possible that when you were parked up in the car the unit thought you were "off road" and therefore couldn't plan a route, once you moved a short distance and reacquired the road (as far as the device thought) it would then plan the route - Mike |
Thanks for checking.
That's the most likely explanation.
Does the 540 software work differently to the 510? The map on my 510 was quite old, so it often thought I was "off the road" when I was in a new supermarket or retail park car park. It still planned the route, but couldn't decide which way I needed to turn until I got back onto a proper road.
Seems odd that the 540 just gives up, rather than planning the route from the nearest road it knows. |
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Tomo Lifetime Member
Joined: May 17, 2004 Posts: 212 Location: Fife Scotland
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Posted: Thu Jan 01, 2009 1:09 pm Post subject: |
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Just to split hairs, I often set a route while on the top of a hillside where the road is more than 2 or 3 miles away and it quite happily sets a route for me. TT shows a dotted red line to the nearst road from my location and keeps updating this point on the road as I drive towards it.
I have had the unable to plan route error once or twice on a One and 730, I just put it down to a glitch as a power cycle solved it on both occasions.
Steve |
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MrT Frequent Visitor
Joined: Nov 14, 2003 Posts: 2143 Location: Surrounded by A1, M1 & M25
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Posted: Thu Jan 01, 2009 1:59 pm Post subject: |
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I have seen this once on my 940 when I selected the option "avoid all traffic". _________________ Drivelux |
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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: Fri Jan 02, 2009 9:24 pm Post subject: |
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Rathe than there being a problem with your starting point, it could be that it was that the particular POI you chose to route TO was well off-road.
Can you let us know what that was? (or you could try to recreate it with a demo route from your same starting point.). |
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pcaouolte Frequent Visitor
Joined: Dec 27, 2006 Posts: 998 Location: South Lincs, UK.
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Posted: Fri Jan 02, 2009 10:19 pm Post subject: |
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Andy_P wrote: | Rathe than there being a problem with your starting point, it could be that it was that the particular POI you chose to route TO was well off-road. |
But once the OP had driven 100 yards the tomtom "found a route no problem." _________________ Paul |
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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: Fri Jan 02, 2009 11:13 pm Post subject: |
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Doh! (New Years Resolution... try actually reading the question! ) |
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