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We are in need of US highway data.

We found it for Florida at the state GIS website.

We downloaded the data for Florida highway intersections from here (this is a zip file).

How do we use these files and extract the geocode values of the intersections (exits) from them?

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Which software do you have available? –  underdark Feb 9 '11 at 12:25
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Any of the top hits found by Googling "shapefile" provide detailed descriptions of shapefiles and software (or links to software) and applets for reading them. –  whuber Feb 9 '11 at 16:26
    
The top hit for Googling about shapefiles pulled up this question for me! –  Matt Nov 6 '12 at 21:52

4 Answers 4

up vote 13 down vote accepted

You can download and use QGIS which is a simple and effective free G.I.S. software. http://www.qgis.org

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thanks, it has worked for me. –  mohang Mar 7 '11 at 9:32

in arcmap 10

1) do a query on the features you would like to select and export them to a new layer (using selection - on the top; select by attributes)

2) enable the arctoolbox (by going to the geoprocessing menu on the top)

3) open the geocoding tools

4) use the geocode addresses to create the export file you need - if that is not what you want; try to take a look at the data management toolbox and see if you can find one that suits your needs.

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If mohang isn't familiar with the shapefile format, I doubt that he has GIS software that costs several thousand dollars... –  DavidF Feb 9 '11 at 14:36
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although he has managed to get almost 100 reputation on a GIS Q&A site..! –  geographika Feb 11 '11 at 21:47

Among many other options, you could open the files with the free software package saga gis

If you use modules\shapes\add coordinates to points you will get a table with all the xy locations and their attributes.

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