Available with Network Analyst license.
- Start ArcMap.
- Click Geoprocessing > Search For Tools.
- Type make network analysis layer in the search box.
- Click Search Tools.
The geoprocessing tools that make network analysis layers are listed in the Search window.
- Click the name of the tool that makes the network analysis layer you want.
For example, if you want to create a route layer, click Make Route Layer.
The tool's dialog box opens.
- Fill in the parameters of the tool.
- Click OK.
The network analysis layer is created as an in-memory workspace. It is added to the ArcMap table of contents and the Network Analyst window.