Overview

Risk Assessment in Structures Analyst module allows users to:

• Define the Risk Categories.
• Define the Event and Event Probability for each Risk Category.
• Define the Damage Levels.
• Define the Damage Probability for each bridge .
• Calculate the monetized risk and risk probability for each bridge and risk category
• Aggregate the risk on a network level.

Follow these steps to perform Risk Assessment analysis in the system.

Define Risk Category

Risk Category can be defined under Structures Analyst > Setup > Risk Assessment > Risk Categories window. Out of the box, the system provides the following Risk Categories:

• Collision
• Concrete
• Hydraulic
• Seismic
• Steel

User will proper permission can define more risk categories.

Define Event and Event Probability

After Risk Category is reviewed and updated, each event for each risk can be defined under Structures Analyst > Setup > Risk Assessment > Event window.

User will proper permission can define more event.

Define Damage Level

Damage Level can be defined under Structures Analyst > Setup > Risk Assessment > Damage Level window.

User will proper permission can define more damage level.

Update Damage Probability for Each Bridge

After Risk Category, Event and Damage Level have been updated, follow these steps to update the damage probability for each bridge.

1. Precondition:
   • Bridge Network Master has been populated.
2. Go to Structures Analyst > Analysis > Risk Assessment window, under Total Risk Overview tab, click Sync All Structures button. This command will sync all bridges in Bridge Network Master into Risk tables, together with their asset values. If new bridges are added to or removed from Network Master after Risk Assessment was done last time, clicking this button will sync those changes into Risk Assessment tables.

1. Observe the new bridges have been added to Risk Assessment window.
2. Click Risk Details tab, update the Damage Probability for each Risk Category, Bridge and Event combination.
3. Alternatively, user can create an Import on ASSET_DAMAGE_PROBABILITY table to batch update the Damage Probability value.

Calculate Risks for Each Bridge and Network

After Risk Category, Event and Damage Level have been updated, follow these steps to update the damage probability for each bridge.

1. Once the update is complete, user can click Calculate Selected Structures or Calculate All Structures under the Risk Details tab to calculate/update their risk values for the selected Risk Category.
2. Alternatively, user can click Calculate Selected Structures or Calculate All Structures under the Total Risk Overview tab to calculate/update their risk values as well as the total network risks.

Advanced Configurations

Asset and Asset Value Logic

By default, system uses Bridge Network Master to determine bridge inventory, and the REPLACEMENT_COST column in Bridge Network Master as the Asset Value when syncing the bridges.

If another column in Bridge Network Master is desired, update the RISK_CONFIG_TABLE_NAMES accordingly.

RISK_CONFIG_TABLE_NAMES:

TABLE_NAME

varchar(50)

ID_COLUMN_NAME

varchar(50)

VALUE_COLUMN_NAME

varchar(50)

MODULE_ID

bigint