[Openstreetmap] GPX upload of spurious track points

[Simon Hewison]

On Sun, Sep 11, 2005 at 01:17:15AM +0200, Lars Aronsson wrote:
> Simon Hewison wrote:
> > lat=52.12423307443891&lon=0.6426912178283006&scale=2.9629629629629624E-4
> 
> This is obviously a flight route.  It continues across the eastern 
> coast line of England.  There are other flight routes over 
> Germany.  I recorded my own (Ryanair) flight from Frankfurt (Hahn) 
> to Sweden (Nyköping), and I think I uploaded that track to OSM as 
> part of my Frankfurt track log. There should be a turn around 
> http://www.openstreetmap.org/edit/viewMap.jsp?lat=51.6&lon=9.5&scale=0.003
> 
> Traffic flight routes are not random.  They follow certain paths 
> and are allocated at certain altitudes.  Maybe they should be 
> mapped, just like motorways and bike paths?  Or maybe not.

IFR Flight routes are mostly not random, but frequently 
change due to weather conditions - the aircraft you were on to record that
flight (even it was following a prescribed IFR flight route) may have
requested to change altitude or heading to avoid bad weather. The IFR flight
corridors (airways) are really quite wide as well (4 nautical miles either side
of the centre line), and if you want authoritative data, which anyone who
really NEEDED that information anyway (like pilots), they are legally
REQUIRED to use an approved information supplier for navigation purposes.

VFR flight track logs should definately not be uploaded to streetmap, since
they are pretty much unique to a particular flight.

http://en.wikipedia.org/wiki/Airway_%28aviation%29

--
Simon Hewison