Ufrm built infrastructure map and damage table

Software Support
1

Should I extract map from OSM? While extracting it gives a dif types of maps( landuse, places, building, transport, traffic etc). How to make built infrastructure map? And make damage table? Can anyone give me briefing? It will be great if someone can give me some snap of your built infrastructure, attribute table and damage table

2

Hello @Rahi -

Yes, you can use polygons from Open Street Map as the built infrastructure input to the Urban Flood Risk model. It is up to you to decide which layers are important for your analysis. Typically we use buildings, but it may be useful to you to include roads or some other infrastructure. The only requirement is that they be polygons, not lines or points, and then you need damage costs to go along with the different infrastructure types.

We provide sample data for all of the InVEST models, which you can use to see an example of how the built infrastructure and damage loss table should look. The sample data can be downloaded through Workbench - here are instructions.

That said, our sample data for UFRM is not as clearly annotated as it should be. So here are versions for a different study area that might be easier to use an example.

UFR_infrastructure_sample.zip (386.6 KB)

~ Stacie

3

How to select dif infrastructure types

4

@Rahi can you provide more explanation of what you mean by this? The model itself does not care what kind of infrastructure types you use (buildings are most typical), they just need to be polygons. So you will need to decide whether you want to include buildings and/or roads and/or whatever else is provided in Open Street Map.

Once you’ve decided which types of infrastructure to include, then you need to create a single built infrastructure vector layer that contains all of the buildings/roads/whatever polygons that you want to analyze. I haven’t worked with OSM in a while, so i don’t remember whether they provide a single vector layer with multiple infrastructure types or separate vector layers for each infrastructure type. If it’s a single layer with multiple infrastructure types you’ll need to select only the types that you want to analyze and make a new vector layer out of them. If they are separate vector layers then you’ll need to merge the separate layers into a single one. Then, each infrastructure type must be assigned a unique integer value, so it can be joined with the damage loss table.

Then you create a damage loss table containing cost information for each of the infrastructure types that you’ve included in the final built infrastructure layer.

~ Stacie