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# Introduction
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This program extracts the maximal flood area from either ASCII grid, DHI dfs2 files or DHI dfsu files, intersects these with building and street features and computes flood damage based on damage functions for residential and commercial buildings as well as streets. The tool was developed to implement the methods described in this [report](https://watersensitivecities.org.au/content/flood-damage-assessment-literature-review-recommended-procedure/).
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This program extracts the maximal flood area from either ASCII grid, DHI dfs2 files or DHI dfsu files, intersects these with building and street features and computes flood damage based on damage functions for residential and commercial buildings as well as streets. The tool is currently split into a version reading dfsu files and applying depth-damage functions based on this [report](https://watersensitivecities.org.au/content/flood-damage-assessment-literature-review-recommended-procedure/), and a version reading dfs2-files or ASCII rasters and applying depth damage functions in accordance with this [article](http://www.mdpi.com/2073-4441/7/1/255) (with slight modifications for the computation of damages from roads and green areas). A major difference is that the dfsu version applies per-sqm damages for commercial buildings, while the raster-based version applies unit damages for all building types. It is foreseen that the 2 code versions will be merged in the future.
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# Setup
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## Dependencies
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| ... | ... | @@ -79,4 +79,4 @@ The program output is a text file, in the following format: |
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total;buildings;roads;green
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84650.0;84650.0;0.0;0.0
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```
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The first column contains the total flood damage occuring for the considered flood map and land use data. The 2^nd^ to 4^th^ columns contain the contribution from buildings, roads and green areas to the total flood damage. |
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\ No newline at end of file |
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The first column contains the total flood damage occuring for the considered flood map and land use data. The 2^nd to 4^th columns contain the contribution from buildings, roads and green areas to the total flood damage. |
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\ No newline at end of file |
