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SamHunter Occasional Visitor
Joined: Dec 19, 2004 Posts: 17 Location: Glasgow, UK
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Posted: Mon Mar 06, 2006 2:19 am Post subject: Camera location accuracy in the database |
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Probably a silly question, but is there a means of fixing the camera locations in the database.
The majority of camera locations I have submitted were taken with a handheld GPS receiver while I was standing beside the camera. The coordinates are accurate (or as accurate as I could get them Will these cameras start wandering about the road as people use POICapture? |
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lbendlin Pocket GPS Staff
Joined: 02/11/2002 22:41:59 Posts: 11878 Location: Massachusetts, USA
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Posted: Mon Mar 06, 2006 6:56 am Post subject: |
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For each camera location we review all submissions and then select the one that is most likely (at the intersection, ant the Gatso pylon, etc). You can specify the recording method in the comment field, and that can help us to weigh submissions accordingly.
POICapture can only be as accurate as the point in time when the copilot presses the record button. _________________ Lutz
Report Map Errors here:
TomTom/TeleAtlas NAVTEQ |
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SamHunter Occasional Visitor
Joined: Dec 19, 2004 Posts: 17 Location: Glasgow, UK
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Posted: Mon Mar 06, 2006 10:27 am Post subject: |
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lbendlin wrote: | ... select the one that is most likely (at the intersection, ant the Gatso pylon, etc). ... |
Hmmm, it was my understanding that camera locations were "verified". I assumed this meant a visit by a real person to check not only the camera location, but its existance too. Selecting the one that is most likely from a number of submissions seems rather prone to error. |
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RobBrady Frequent Visitor
Joined: Jul 21, 2004 Posts: 2718 Location: Chelmsford, UK
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Posted: Mon Mar 06, 2006 2:37 pm Post subject: |
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SamHunter wrote: | Hmmm, it was my understanding that camera locations were "verified". I assumed this meant a visit by a real person to check not only the camera location, but its existance too. Selecting the one that is most likely from a number of submissions seems rather prone to error. |
Hi Sam,
Yes, I do understand your point and the reasons you would think that, but...
1. The team, moderators and many trusted sources physically check as many as possible and we hope to extend this in the future.
2. We are fortunate that the volume of duplicated submissions is high, giving us the opportunity to check and double check positions.
This makes the database what is widely regarded as the best in the field.
Obviously, it will never be 100% - this is, of course, purely due to the ever changing nature of the camera geography. |
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SamHunter Occasional Visitor
Joined: Dec 19, 2004 Posts: 17 Location: Glasgow, UK
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Posted: Mon Mar 06, 2006 3:36 pm Post subject: |
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Don't get me wrong, I'm not having a dig at the database, or it's accuracy in general. Just seems that once a camera has been checked for existance and location, call it verified if you want, then all further positional updates are meaningless. The only update that means anything after that is if the camera has been removed.
That was really the basis of my question, seems a bit strange to me that a camera position that has been verified would be allowed to move to another location just because it looked more likely on a map 8O |
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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 Mar 06, 2006 3:55 pm Post subject: |
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It wouldn't. Once a location is verified and confirmed its location is locked and will only be altered by an update notifying of its removal. _________________ Darren Griffin |
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SamHunter Occasional Visitor
Joined: Dec 19, 2004 Posts: 17 Location: Glasgow, UK
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Posted: Mon Mar 06, 2006 4:10 pm Post subject: |
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Darren wrote: | It wouldn't. Once a location is verified and confirmed its location is locked and will only be altered by an update notifying of its removal. |
Thanks, that's all I wanted to know :D |
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