[Talk-transit] NaPTAN bus stops

Chris Hill chillly809 at yahoo.co.uk
Fri Aug 21 15:49:49 BST 2009


I've started to survey the bus stops Thomas imported for Hull. I chose a 
small area to look at to see how it went. 

    * Out of 12 stops surveyed, 2 don't exist on the ground. 
    * The codes given as the naptan:AtcoCode are not displayed on the
      stops' signs, but an abbreviated version is, for example:
      naptan:AtcoCode=2290YHA01230 is displayed as 29901230.
    * The naptan:Bearing seems good using 8 cardinal points.
    * The positions are well placed against the road so far, but the
      position along the road can be quite inaccurate.  This cannot be
      random GPS inaccuracy as they would equally be away from the road
      but more likely some kind of human error.
    * The whole process will take a lot of work!

On the stops that are missing I will remove the highway=bus_stop tag and 
add physically_present=no as per the suggestions from the wiki page.

I have found 1 stop (so far) that is not as described.  The stop is 
described as on Gershwin Road, when it is actually on Sibelius Road 
(based on its code).  The bearing is N when the stop points W.  So how 
much of the Naptan data (if any) should I change?  I can move the stop 
to its actual position, but then the naptan:street will not match the 
street it is on and so on.  Any opinions, or suggestions are welcome.  
If we reach a consensus then I'll amend the wiki page.

Cheers, Chris




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