[OSGeo-Discuss] Data format frustration - too general!

[Giovanni Manghi]

Did you has a look to openstreetmap?

cheers

-- Giovanni --


On Tue, 2010-08-03 at 17:07 -0700, berryman wrote:
> Hello,
> 
> I am hope to use GIS for a traffic analysis program that I am involved with. 
> After having looked at a couple weeks worth of GIS resources, I still feel
> like I haven't found what I'm looking for and it's time to get some human
> input.
> 
> The main source of my frustration is that all of the standard data formats
> seem to be too general for my purpose.  Common formats provide the ability
> to encode points, lines, polylines, and polygons (where the locations are
> unitless).  But I need the ability to encode the geographic location (e.g.
> lat/long, NAD83) of high-level constructs.  For instance, I'm not just
> interested in the location of streets, I'm interested in the location of
> each lane.  I also need to know how street topology and traffic direction so
> that I can make path planning determinations.  Finally, it would even be
> ideal if I could encode the location of traffic signals, stop signs,
> bus-only lanes, etc.
> 
> I know that these types of encoding must exist somewhere , because my Garmin
> GPS understands the rules of the streets and can anticipate things coming
> up.  For instance, it might tell me "stay in the right lane."  Are there
> standard data formats for encoding this information?  Or is the ability to
> encode this a non-public extension of some more generic standard?  If so,
> then how do I go about extending some other standard for my application?
> 
> Thanks all!