The ArcGIS Network Analyst extension allows you to perform transportation network analysis, such as vehicle routing, on a network dataset.
To learn more about working with ArcGIS Network Analyst extension, see the Transportation network roadmap.
See Also:
What is ArcGIS Network Analyst extension?About the ArcGIS Network Analyst extension Tutorial
Essential ArcGIS Network Analyst extension vocabulary
NetworkAnalyst
ArcGIS Network Analyst extension Object Model diagram
ArcGIS Network Analyst extension UI Object Model diagram
An overview of the Network Analyst toolbox
What is a network dataset?
How to open a network dataset
Programming with ArcGIS Network Analyst extension