Date: Thu, 28 Mar 2024 14:34:30 -0500 (CDT)
Message-ID: <67736647.1378.1711654470325@wiki.ncsa.illinois.edu>
Subject: Exported From Confluence
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Introdu=
ction
In this demonstration, we are going to demonstrate the Interdependent Ne=
twork Analysis to compute the connection loss and service flow reduction of=
an interdependent network composed of an electric power network and water =
network. Alternatively, we could also compute the connection loss and servi=
ce flow reduction for an electric power network and gas network.
Tutorial Exa=
mple
This advanced tutorial is going to look at how the damage to one utility=
(a power network) could effect another utility (water network) that might =
rely on the power network to run, for example, water pumps. Because of this=
interdependency, looking at the physical damage to the water network is no=
t enough to determine if it can still operate at full capacity after an ear=
thquake event. Using the Interdependent Network Analysis, we can determine =
connection loss and service flow reduction. To get started, we will need to=
create a new scenario.
Create Scenar=
io
- If you have not already done so, launch the MAEviz application.
- Go to File -> New Scenario and this should bring u=
p the new scenario dialog.
- Create a scenario with Shelby County, Tennessee as your region of inter=
est and choose the MAEviz 3.1.1 Analysis Defaults as your default set. If y=
ou have been following other tutorials you might want to provide the scenar=
io a name such as INA Shelby County.
- After doing this, click Finish to create the new scena=
rio.
Interdependent Network Analysis
First, we will need to determine the physical damage to our water networ=
k. To do this, go through the following steps:
- Click on the Execute Analysis ( ) icon to bring up the Execute Analysis wizard.
- Expand the Lifeline category and select Water Utility Netw=
ork Damage Analysis. Click the Finish button.
- This should bring up the analysis graph for the Water Utility Netwo=
rk Damage Analysis. To bring up the form page, click on the water util=
ity network damage box in the graph.=20
- For the Result Name field, specify a name such as Water Ne=
twork Damage for INA.
- For the Water Network field, click the Search ( ) button and find =
the dataset named Memphis Water Utility Network for INA and click =
the Finish button.
- For the Hazard field, click the Create button to add =
the Create Scenario Earthquake box to the analysis graph. Click on=
the box to bring up the form page.=20
- For the Result Name field, specify a name such as Memphis =
7.3 Scenario Earthquake.
- For the Magnitude field, specify 7.3.
- Go back to the Water Utility Network Damage Analysis form page=
so we can fill in the last few required fields.=20
- Under Advanced Parameters you will find the Pipeline Fragi=
lities field. Click the Search ( ) icon and find the dataset called Bu=
ried Pipeline Fragilities v1.1 and click the Finish button.=
li>
- For the Pipeline Fragility Mapping field, click the Search=
( ) ico=
n and find the dataset called Buried Pipe Fragility Mapping 1.2.=
li>
- Click the Execute button to run the analysis.
Now that we have determined the damage to the water network, let's do th=
e same for the power network.
- Click on the Execute Analysis ( ) icon to bring up the Execute Analysis wizard again.
- Expand the Lifeline category and select Electric Power Uti=
lity Network Damage (Hazus Style). Click the Finish button.=
li>
- In the analysis graph, click on the Electric Power Utility Network =
Damage (Hazus Style) icon to bring up the form page.=20
- For the Result Name field, specify a name such as Electric=
Power Network Damage for INA.
- For the Power Network field, click the Search ( ) button and find =
the dataset called Memphis Electric Power Network for INA and clic=
k the Finish button to add it to your scenario.
- For the Hazard field, click the Search ( ) button and locate th=
e scenario earthquake we just created for the water network damage. If you =
used the example name previously specified, it should be called Memphis=
7.3 Scenario Earthquake. Click the Finish button after you h=
ave located the dataset.
- All other required fields should be filled in so you can now click the =
Execute button to run the analysis.
One thing to note here is that our network dataset inputs (e.g. Memp=
his Electric Power Network for INA) contain both a link and a node dat=
aset; however, MAEviz can only display the links in the visualization view =
even though nodes are present as well. The drawback of this is that even th=
ough the Electric Power Utility Network Damage (Hazus Style) and t=
he Water Utility Network Damage Analysis computed damage to both l=
inks and nodes, only the damage to the links can be displayed and viewed in=
the tabular view. The damage to the node dataset is there and will be used=
in the Interdependent Network Analysis even though they cannot be=
viewed. Now that we have our power network damage and water network damage=
, let's proceed to find what the effects are from their interdependencies.<=
/p>
- Click on the Execute Analysis ( ) icon again to bring up the Execute Analy=
sis wizard.
- Expand the Lifeline category and select Interdependent Net=
work Analysis. Click the Finish button.
- In the analysis graph, click on the Interdependent Network Analysis=
icon to bring up the form page.=20
- For the Water (or Gas) Connectivity Loss Result Name field, sp=
ecify a name such as Water Network Connectivity Loss.
- For the Power Connectivity Loss Result Name field, specify a n=
ame such as Power Network Connectivity Loss.
- For the Water (or Gas) Service Flow Reduction Result Name fiel=
d, specify a name such as Water Network Service Flow Reduction.
- For the Power Service Flow Reduction Result Name field, specif=
y a name such as Power Network Service Flow Reduction.
- For the Water (or Gas) Utility Network Damage field, select th=
e result we just created from the drop down menu. If you followed the tutor=
ial explicitly, then you should have a dataset called Water Network Dam=
age for INA, select it.
- For the Electric Power Utility Network Damage field, select th=
e result we just created from the drop down menu. If you followed the tutor=
ial explicitly, then you should have a dataset called Electric Power Ne=
twork Damage for INA, select it.
- For the Network Interdependency Table field, click the Sea=
rch ( =
) button and find the dataset called INA - Memphis interdependency tabl=
e, click the Finish button to add it to the scenario.
- For the Number of Simulation field, choose enough simulations =
to get a reasonable sampling. Something around 500 should be sufficient.
- Under the Advanced Parameters section, you can leave the U=
se Homogeneous Interconnectedness Level? box unchecked.
- Click Execute to run the analysis.
After running the analysis, you should now have 4 new result tables unde=
r Scenario Data. You should have two connectivity loss tables, one=
for the water network and one for the power network and you should have tw=
o service flow reduction tables, one for the water network and one for the =
power network.
Results
Now that we have some results, let's open up the datasets to see what we=
have. The connectivity loss tables have the following 3 columns:
- alpha
- meanconnloss
- stdconnloss
The service flow reduction tables have the following 3 columns:
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