In spatial planning Levee refers to a natural or artificial slope or wall to regulate water levels, called levee in US English.

In the Tygron Platform these levees play a special part. As dedicated Buildings they can affect safe zones and floods. By constructing a levee as an independent action or as part of a measure, the safe zone terrain will be expanded, protecting more houses and industry when a flood occurs. This can all be visualized in the Tygron Platform and a dedicated indicator can be set up to have the implementation of levees score on the stakeholder progression.

High water in Lower Manhattan, before flood protection
High water in Lower Manhattan, after flood protection
Expanded safe zone in Lower Manhattan, after flood protection
Lower Manhattan Housing units protected (Excel) indicator

Different ways of deploying levees in the Tygron Platform

In the Tygron Platform are two ways present to implement levees in a project; drawn in manually during the session as action, or deployed as part of a measure using LeveeSpatials.

Implementation as action allows for trying out new plans and ideas. This can for instance be convenient when the project is part of an outreach to non-planners, for example residents or business owners, to let them try their own plans and ideas without an engineer pre-planning the flood protection for them. This can give session participants a stronger sentiment of involvement with the project.

On the other hand, deploying the levees as part of a predefined measure enables a project to quickly switch between different pre-planned alignments, in order to visualize the impact of each alignment on the indicators.

Deployed as part of a (predefined) Measure

Note: it is currently only possible to assign functions to the top and side of a levee when deployed as an Action.

Editor → Future Design (Ribbon tab) → Measures (Ribbon bar) → Add spatial Measure (Left panel)

How to implement levees as predefined Measure:

Select Stakeholders → Measures → Add Spatial Measure
Open the MeasureSpatials entry
Select the WATER 1 (default) entry
On the right panel, select LEVEE as type from the drop down menu on the right panel
Set relative and absolute height on the right panel
Use brush panel to draw Outer Area, and apply
Use brush panel to draw Inner Area, and apply
Select Stakeholders → Actions
Add new action (if desired)
Select Assigned Actions
Add new Measure to Assigned Actions on the right panel

Main article: Measures.