Accurate POI's

Tom59 · Posted: Wed Apr 16, 2008 11:29 pm Post subject: Accurate POI's

Is there any criteria for how accurate POI's are when submitted? I personally would take my TomTom as close as possible to the target, then select my position as a new POI. I know that you can look at Google Maps or any of the other online address finders, but they can be quite inaccurate as well. Today I tried to find a Sainsbury's (they are huge!) whoever submitted the POI got it wrong by about 100 meters. I ended up down a little back street with cars parked on both sides and ended up "You have reached your destination" in someones shed. So the question to the moderators is this......... Is it pssioble to categorise POI's please? Gold using the method that I described, Silver using a post code only, bronze for "Pin the tail on the donkey method" or some other way that is workable? Maybe you could charge for Golden POI's ? CoPilot

Border_Collie · Posted: Wed Apr 16, 2008 11:45 pm Post subject:

Deleted by Editing because I misread the post and gave a wrong answer. Embarassed

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GerryC · Posted: Thu Apr 17, 2008 12:01 am Post subject: Re: Accurate POI's

Andy_P · Posted: Thu Apr 17, 2008 12:07 am Post subject:

Not sure what you mean by "categorising the POIs"....
If all the entries in a particular POI category were compiled in the same way then I could see you could maybe have a sign or symbol next to the category to indicate how they were compiled (postcode, address or eyeball) etc.

But most of the POI categories on this site are continually updated from people's own submissions, so every entry will have varying accuracy depending on who submitted it and how.
Short of going back through all 200,000 entries and finding out how accurate they are (i.e. starting again), I just can't see how your grading system would be possible to implement.
Or have I got the wrong end of the stick?

Tom59 · Posted: Thu Apr 17, 2008 12:24 am Post subject:

When people submit POI's, they could declare how accurate or categorise them. So lets say that someone submits some POI's claiming that they are silver or bronze, fair enough, take them at their word and release the POI's on the general public. If they are claiming that they now want to submit gold POI's, that is a different matter. These POI's could be verified as speed camera sightings are verified. I don't think that it would be feasible to trawl through all existing POI's, but it could certainly be applied to new submissions. Idea

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aj2052 · Posted: Thu Apr 17, 2008 12:36 am Post subject:

MaFt · Posted: Thu Apr 17, 2008 1:49 am Post subject:

the best location for a poi is the entrance road to a car park - that way it doesn't take you to the wrong side of the building!!

MaFt

andy-c1 · Posted: Thu Apr 17, 2008 7:59 am Post subject:

Daggers · Posted: Thu Apr 17, 2008 10:01 am Post subject:

My suggestion is this: Next time you have a quiet evening, instead of just vegging in front of the box watching nothing in particular (come on, I'm sure we're all guilty of this from time-to-time!), spend some time on the POI submission page, looking at your home town and other areas you know well. Correct some of the POIs that you know are currently not quite right. Depending on the location, you can often use the satellite image view to identify specific buildings, rather than just guessing from the map.

Next time you go on a journey somewhere, observe the locations of the POIs on the SatNav compared with their actual positions in real life. Then spend 10 minutes next time you are at your computer, putting in a couple of changes.

This way, the POI database starts to get a little more accurate. The more people that do this, the better it becomes, and the more confidence other people will be able to have in it.

andy-c1 · Posted: Thu Apr 17, 2008 9:12 pm Post subject:

Andy_P · Posted: Fri Apr 18, 2008 12:49 pm Post subject:

Just occasionally the aerial image and the road map image don't line up very well.
In those situations, apparently the map is more accurate, so use the aerial image to get the position, but then move it to the right place on the map before submitting it.

Oh, by the way... anyone know how often these are actually satellite images? Wikipaedia says they are often just from aeroplanes but doesn't give any more details. Are ALL high res ones from planes do you think?

aj2052 · Posted: Sat Apr 19, 2008 12:21 am Post subject:

Graeme2812 · Posted: Sat Apr 19, 2008 7:30 pm Post subject:

ian1509 · Occasional Visitor Joined: Sep 08, 2006 Posts: 2

With the poi's I have created for my son's cricket, I use poieditor and you just drill down through google maps to get the position spot on to the various entrances.

Brickie64 · Posted: Fri Apr 25, 2008 10:03 pm Post subject:

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