I want to create center lines from road polygons.
Are there any automated tools in ArcGIS for Desktop to do this?
I am including a Screenshot of my vector file below.
Collapse Dual Lines To Centerline (Cartography)
This is a specific ArcGIS tool requiring ArcInfo License
ArcGIS for Desktop Basic: No ArcGIS for Desktop Standard: No ArcGIS for Desktop Advanced: Yes
Convert you polygons to lines first
"Derives centerlines from dual-line (or double-line) features, such as road casings, based on specified width tolerances."
Finally i got a solution. I converted the polygon to image in arcgis using Polygon to raster tool. Then reclassified it and used Automatic vectorization. About 90 percent accuracy is obtained using this method. There are only little snapping mismatches and also the line is drawn through the exact centre. I think this is the best way if you do not have a ET geowizards licence.
The ArcScan for ArcGIS home page says:
Starting with the release of ArcGIS 10.1, ArcScan for ArcGIS is included in all license levels of ArcGIS Desktop software at no additional cost.
There is no single geoprocessing tool that automatically performs this task. The tools used in this procedure require an ArcGIS for Desktop Advanced license-
1.Convert the polygon layer to a line feature class by using the Polygon to Line tool.
2.Remove the lines enclosing the polyline layer.
3.Save the edits, and stop the edit session.
4.Create the centerlines by using the Collapse Dual Lines To Centerline tool. The tool is located in the Cartography toolbox > Generalization toolset. The centerlines are displayed in the map.
ArcGIS Pro now has a Polygon to Centerline tool, available if you have the Production Mapping extension with a standard or advanced license.