This problem of inaccuracy has always been in the system. If the destination is more than 50 feet from a street and is part of a route we will tell you which side of the street the destination is (we can do this because we know which way you will be travelling down the street because you are on the route). If the destination is less than 50 feet but we have the address we can also tell you which side of the street your destination is because of its address and because we know which way you will be travelling down the street when you get their again because you are tied to the route.
When you are not tied to a route then all we can do is use the destinations exact Lat/Lon and your current GPS lat/Lon and tell you how far it is in relation to you based on your current heading. Same goes for POIs here.
To know the poi or destination's exact location set yourself virtually there and type Y this will give you the Lat/Lon of the POI or destination in question.
So in the case of John when the system told him that a POI was ahead and right when it should have been left, well my guess to what actually happened is as follows. The POI in question was actually located on the street (TeleAtlas does this when it doesn't have an offset where the POI actually is but it uses the street address and "entry way" i.e. driveway to the POI as the POI's lat/lon. So given that this means the poi is actually right on the street according to the POI data now this usually works fine if your GPS position is actually tracking you accurately but if the GPS is having a bad day it may think you are on the other side of the street and this is why it says ahead and right instead of left.
Maybe a future enhancement might be that we will take into account the POI's address and depending on which direction you are travelling down the street we will override the "gps inaccuracy" and tell you that the POI is on the left/right depending on its address instead of its supposed "position", unless it is so far away then we will ignore its address and just go by its location.
I hope that makes sense. Charles. At 01:59 PM 8/11/2007, you wrote:
I agree as well. I've ran in to this problem as well, and didn't notice this problem until I switch to 4.0. Is there a way to pinpoint where the destination actually is? -----Original Message----- From: gps-talkusers-bounce@xxxxxxxxxxxxx [mailto:gps-talkusers-bounce@xxxxxxxxxxxxx] On Behalf Of John Gassman Sent: Saturday, August 11, 2007 1:43 PM To: "gps-talkusers <gps-talkusers"@freelists.org Subject: [gps-talkusers] commercial Pois were on the wrong side of the street Hello, I remember this topic came up several months ago but at that time this situation had not happened to me so I don't remember the answer. Today during my first ever GPS adventure, I was walking around my neighborhood with a mobility instructor friend of mine. I was told by GPS that several comercial points of interest were ahead and to the right. Actually they were on my left instead. I was walking with the street on my right. Later when we reversed the route coming back to my apartment, those same Pois were on my left and GPS read them correctly. If I create a route to a specific Point of interest how can I trust the accuracy? I'm not talking about the accuracy of feet ahead and behind, I understand that based upon my reading but right and left inaccuracies would be a major problem which I would like to overcome. John John Gassman mailto:johngassman@xxxxxxxxxxxxxx Recognition Of The Problem is 51% Of The Solution
Charles M. La Pierre CTO Sendero Group, LLC Lat. 37 15' 25" N Lon: 121 53' 04" W