Detect self intersection in polylines

[CarstAway]

Hi!

I have to do something simple: I know that I habe a polyline with self intersections. Now I have to detect the positions of these self intersections.

I use the newest version of ArcGIS, but I am not allowed to use new tools etc.

[DuncanHornby]

You can solve this using a series of tools which could very easily be put together as a model. This approach uses two Advanced level licensed tools so you need that level of licensing to run this approach although you could generate equivalent functionality with python scripting.

Here is my self intersecting data:

If I create and run this model:

Output would be: