Split Polylines

The “Split Polylines” tool provides ArcGIS users with capabilities to split polyline features into separate segments in various customizable ways.

Available splitting methods: 

• At all vertices – input polylines will be split at all vertices, the number of output polylines depends on how many vertices exist in the input polylines. Note, in some cases the vertices density can be high enough so that applying this method will result in great many of short polylines. In such cases you can apply the Show Nodes tool first, to figure out how many nodes (vertices) are there in the input polylines.
• Into specified segments – input polylines will be split into segments of the specified length (except the last segment), at that splitting always starts from the start (from) node of the input polylines. 
• Into equal segments – input polylines will be split into given number of equal segments.
• At intersections – input polylines will be split at all intersections within the input polyline layer. This option is similar to the ArcGIS “Planarize” tool and can be useful when dealing with non-topological or spaghetti digitized line work.
• At the points of change of any direction – input polylines will be split at the points of change of their direction change. If the polyline contains arc segments, then such areas will be considered as linear segments.
• At the points of change of slope - input polylines will be split at the points of the slope direction change (this option relates and can be applied to 3D polylines).
• By another layer - input polylines will be split at the intersections with another specified polygon, polyline or point layer (or by selected features of another layer).