datashapefileturkey
Looking for vector data for the country Turkey, specifically roads, railroads, and rivers shapefiles… no cost would be nice, but it needs to be more detailed and accurate than mapcruzin's free data.
Something under $500 would also be considered.
Anyone here have experience/recommendations with locating low cost shapefile data for Turkey?
Digital Globe has a pretty good coverage of Turkey. (see below) This only includes existing archival imagery so if you see any holes in the coverage it means that DG has not collected any imagery there. When you enable the DigitalGlobe coverage layer in Google Earth and zoom in you can click on the DG icons which will expose the caltalog ID and basic information about cloud cover and quality. You can then order the existing archival imagery directly from Digital Globe. The minimum order of any archival imagery from DG is 25km2. the cost depends on whether you want the image to be precisely orthorectified or not. The 25km2 can be had for about $400. Orthorectified is a few hundred more.
You can custom order any area on earth and the order starts at minimum 100km2. When I priced it out several years ago it was roughly $10,000 for a minimum custom order. Also want to point out that in order to purchase imagery from DG dirrect our company had to be screened by the Homeland Security to whom we had to provide a lot detailed information about our company. This processed might be more difficult depending where you are. It's been a few years since I have done this so I am not sure if these rules still apply.
If you're not too bothered about political or physical geography, one possible solution would be:
Best Answer
http://download.geofabrik.de/osm/europe/
has Turkey in Shapefile format extracted from the Master database on 22-May-2012.
You can use Quantum GIS (QGIS) to view the files.
Would recommend you load this data into a database postgres with postgis high recommended.
http://postgis.refractions.net/download/