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! -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/Data-format-frustration-too-general-tp5370620p5370620.html Sent from the OSGeo Discuss mailing list archive at Nabble.com. _______________________________________________ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss