topic Re: Road Intersections in Transportation Questions

Road Intersections

EdwardGoss — Thu, 12 Jan 2012 15:11:32 GMT

Does a tool exist to place a point at a road intersection?

Re: Road Intersections

SilviaCasas — Thu, 26 Jan 2012 19:10:36 GMT

Hi Ed,

If you have the Data Interoperability extension, there is a transformer called "Intersector" there. This transformer uses a line geometry as the input and produces two outputs. One, a line split at intersections (useful when your data is not segmented this way) and two, nodes for each intersection. If you don't have the extension, and your data is already segmented at intersections, you can use the "Feature Vertices To Points" geoprocessing tool. This tool will be a little trickier to use, as you will create points for endpoints, and you may get duplicates during the process.

Hope this helps.

Silvia

Re: Road Intersections

PatrickStevens — Fri, 27 Jan 2012 13:45:20 GMT

Another option could be the Integrate geoprocessing tool. If you have two crossing polylines, it will add a vertex to each polyline at the point where they cross. In creating network datasets for Network Analyst, we use it to establish connectivity between road features.

Re: Road Intersections

RichardFairhurst — Sat, 18 Feb 2012 12:28:37 GMT

Does a tool exist to place a point at a road intersection?

Interestingly the tool you can use is Intersect (figures, huh.) There is an option to specify that you want a Point output form the intersection of lines and/or polygons. When this option is checked for these geometry types the points returned are in fact the intersection points you want. You can input a single polyline feature class to the tool and it will create the intersections with this option. (Thanks to Darren Wiens for pointing this out in post #8 of this thread).