Clip a route by distance

[LiZhang]

I have some routes generated from network analyst and basically I need to clip a portion of them according to the distance from the route starting point.

For example, a route is 60 mile long and I need to clip out the portion from 40 mile to 55 mile.

Can anyone help me on this?

Thanks,

Li

[JonathanQuinn]

You can look into Linear Referencing:

1)  Create an m-enabled feature class and import your line data into it.
2)  Use the Create Routes tool to assign the m-values for the routes, (m-values are the measurements from the beginning vertex for each route in a line feature class to each consecutive vertex).
3)  Create an event table of the segments you want to extract:

Ex.
[ATTACH=CONFIG]16204[/ATTACH]

4)  Then, use the Display Route Events tool to create line segments based on your input event table.  The output will be a feature layer, which you can export to a shapefile or feature class.