[Talk-us] Fixing TIGER

[Paul Fox]

apollinaris wrote:
 > >
 > > my pet goal is missing from that list (it's only sort of a part
 > > of "Wrong road classification"), and that is, missing "surface"
 > > keys, to indicate whether a road is paved or not.  this is a key
 > > piece of information for many kinds of navigation (bicycling,
 > > motorcycling, and for many others in the case of foul weather),
 > > and it's completely missing (or mostly incorrect) on all other
 > > free and non-free maps.
 > >
 > 
 > this is not tiger specific. you can use tags like track_type,  
 > surface .... or come up with better ones.
 >   but agree tiger data is very bad in this regard. nearly all tracks  
 > are defined as highway=residential. even the ones which are 4WD roads  
 > in the USGS maps.
 > 
 > > unfortunately, there's not much incentive to add the information
 > > to OSM, because none of the renderers will display it anyway.  :-)
 > >
 > > (i started a thread on this earlier this year, and then dropped
 > > the ball by not continuing to lobby for changes to the renderers
 > > to fix this problem.)
 > 
 > use track_type and this is rendered different in osmarender. for me it  

you're referring to this?
    http://wiki.openstreetmap.org/wiki/Proposed_features/grade1-5

the last time i raised this i was told that "surface=" was the way
it should be done.  in the cases i'm thinking of, tracktype doesn't
seem appropriate -- i'm thinking of numbered routes whose surface isn't
paved -- i.e., public roadways.  like route 58 in vermont:

    http://maps.google.com/maps?f=q&source=s_q&hl=en&q=Hazen+Notch+Rd,+Lowell,+Vermont+05847&sll=44.276917,-72.418957&sspn=0.078168,0.128918&ie=UTF8&cd=1&geocode=FVf0qwIdWuOt-w&split=0&ll=44.823612,-72.490883&spn=0.019359,0.032229&z=15&iwloc=A&layer=c&cbll=44.823619,-72.491039&panoid=s_6TgG1fewPjFSxdBFTA_A&cbp=12,267.24,,0,5

[ aside:  google streetview astonishes me sometimes. ]

 > seems counter intuitive how tracktype and path,sac_scale are rendered  
 > but it's a start. it's a chicken-egg situation. if there is no data  
 > there is no reason to change the renderer ....

right.

paul
=---------------------
 paul fox, pgf at foxharp.boston.ma.us (arlington, ma, where it's 61.3 degrees)