[Talk-GB] bing image alignment

[Chris Hill]

Why do you suppose OS Streetview is correct? I find that compared to multiple GPS tracks it is not always well aligned and more recent Bing imagery is often better. 

OpenStreetmap HADW <osmhadw at gmail.com> wrote:
>On 10 September 2013 10:09,  <osm at k3v.eu> wrote:
>
>> This has been discussed on the list before. Bing image alignment can
>be
>> quite poor
>
>One unfortunate consequence of this is that there are areas of the map
>where the majority of features are out of position by 15 or more feet,
>because people have added large numbers of buildings, from Bing,
>whilst treating the Bing locations as gospel.
>
>A couple of days ago, I walked a footpath, which turned out, along
>with the preceding private road, to be a PROW on foot.  As I wanted to
>detail map it to show steps, I first calibrated Bing against OS
>StreetView, and moved both the road and path accordingly.  The result
>is that it now goes right though the last building to actually be
>mapped on the road where the path ends.  Looking at all the,
>un-sourced, (another gripe is the amount of material going in with no
>source and often no comment, but often quite extensive) buildings in
>the area, they seem to align perfectly with uncorrected Bing images.
>
---
cheers, Chris
osm user, chillly