Open the file XPD_US_Advanced_Tutorial_Start.xpdx or continue working from your previous file.
Switch to the Developed phase by selecting from the drop-down list on the left Tree View panel. The background image will be updated and display the proposed property boundaries and building footprints.
Before you plan the Developed site design, you can apply a deluge to the site in order to identify the main flow paths and ponding areas based on the Surface that has been loaded. To use the Deluge quick overland flow analysis, right-click the Deluge layer and select Go, as shown below.
Accept the default analysis parameters and then click OK. A surface flow depth map with hazard (velocity*depth) vector arrows will be shown.
The Deluge map provides information on runoff in the site and can be used as a guide for laying out stormwater control systems and other site features. For example, swales can be located along natural flow paths, and buildings can be located away from ponding locations. The Deluge map shows that runoff will naturally collect in the middle of the site and then drain to the northern-most boundary. We will plan the placement of our Stormwater Controls in these areas to minimize site grading.
Turn off the visibility of the Deluge map by clearing the Deluge layer check box in the Tree View panel.