A design will normally pass through different stages, or Phases, from initial pre-development calculations through to the final design. Equally a number of different scenarios may be considered during the design process as there can be multiple solutions to the same problem.

xpdrainage allows the design to be broken up into a series of phases, or scenarios, with each containing its own independent data. These can then be analysed independently or together to allow the comparison of phase results, which is useful in a number of situations such as:

  • Comparing the runoff & washoff from the site before development with that from the completed development can be an important indicator to the performance of the design.
  • Comparing the results between two different scenarios helps to streamline the design process as it is possible to make a quick informed decision.

Using Phases

When a new design is started a single phase will be created and made current ready for a design to be started. This will be called 'Phase' however this can be renamed to suit your needs.

Phase are managed using the Tree view via the Phase Management, which provides options for Adding, Duplicating, Deleting and Renaming Phases as well as the ability to decide if they should be analysed or not.

The current phase is displayed on the Phase Selector drop down list, which also allows the current phase to be switched. When a phase is selected its data, and results, are then shown on the Tree view, Plan and any forms that are viewed.

Workflow - What's next...?

Inflows connect to either  Junctions or  Stormwater controls  via  Inlets . Specify an  Phases on these objects then choose to connect to another Junction or Stormwater Control.

Previous: Tables  | Next: Phase Management