https://community.esri.com/t5/arcgis-pro-questions/calculate-mean-based-on-line-length/m-p/1105575#M46433 <P>Hi everyone,</P><P>I'm wondering if it is possible to join/merge line segments based on a common ID field and calculate the average of one of the other fields using the line segment length.&nbsp;</P><P>For example, in the following graphic I want to join the line segments that fall within the polygon outlined in turquois. The yellow segment is 100m long and has a value of 50% and the orange segment is 200m long and has a value of 20%. What sort of workflow could I used to calculate the new value?</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="SarahHartholt_0-1633620774371.png" style="width: 400px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/24753i4FAF49F674280469/image-size/medium?v=v2&amp;px=400" role="button" title="SarahHartholt_0-1633620774371.png" alt="SarahHartholt_0-1633620774371.png" /></span></P><P>&nbsp;</P> Thu, 07 Oct 2021 15:34:44 GMT SarahHartholt 2021-10-07T15:34:44Z https://community.esri.com/t5/arcgis-pro-questions/calculate-mean-based-on-line-length/m-p/1105575#M46433 <P>Hi everyone,</P><P>I'm wondering if it is possible to join/merge line segments based on a common ID field and calculate the average of one of the other fields using the line segment length.&nbsp;</P><P>For example, in the following graphic I want to join the line segments that fall within the polygon outlined in turquois. The yellow segment is 100m long and has a value of 50% and the orange segment is 200m long and has a value of 20%. What sort of workflow could I used to calculate the new value?</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="SarahHartholt_0-1633620774371.png" style="width: 400px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/24753i4FAF49F674280469/image-size/medium?v=v2&amp;px=400" role="button" title="SarahHartholt_0-1633620774371.png" alt="SarahHartholt_0-1633620774371.png" /></span></P><P>&nbsp;</P> Thu, 07 Oct 2021 15:34:44 GMT https://community.esri.com/t5/arcgis-pro-questions/calculate-mean-based-on-line-length/m-p/1105575#M46433 SarahHartholt 2021-10-07T15:34:44Z https://community.esri.com/t5/arcgis-pro-questions/calculate-mean-based-on-line-length/m-p/1105656#M46439 <P>Dissolve is what you are describing</P><P><A href="https://pro.arcgis.com/en/pro-app/latest/tool-reference/data-management/dissolve.htm" target="_blank">Dissolve (Data Management)—ArcGIS Pro | Documentation</A></P><P>but if you only want to include the portions within the polygons, you will have to Clip first</P> Thu, 07 Oct 2021 19:19:26 GMT https://community.esri.com/t5/arcgis-pro-questions/calculate-mean-based-on-line-length/m-p/1105656#M46439 DanPatterson 2021-10-07T19:19:26Z