The file for this example, Ipswich Existing Example - Full unsteady.drn, is located in the folder C:\ProgramData\Drains among the Full Unsteady examples. If this folder is hidden, in File Explorer select the View tab and tick the Show Hidden Items box to make it visible.  

This example, shown below, shows a piped drainage system that runs through residential properties built in the overland flow path. The pipeline crosses streets aligned at right angles to the drainage main path.  Runs can be made to explore the differences between the Lite and Full Unsteady hydraulic models, and the effects of storages. The Lite hydraulic model results for major storms is:

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The Full unsteady hydraulic model flows are slightly lower than Lite hydraulic model values, with the difference increasing as one moves down the pipe system, due to the effects of storages at sag pits.