SIFRA: A Tool for Analysis of Hazard Impacts on Infrastructure

https://github.com/GeoscienceAustralia/sifra
Release: 0.1.1

SIFRA is a System for Infrastructure Facility Resilience Analysis. It comprises a method and software tools that provide a framework for simulating the fragility of infrastructure facilities to natural hazards, based on assessment of the fragilities and configuration of components that comprise the facility. Currently the system is designed to work with earthquake hazards only. However, in the development of the methodology and classes, there is a strong emphasis on making the hazard attribution process and infrastructure models flexible to allow for expansion to other hazards and new infrastructure sectors.

SIFRA was developed in Geoscience Australia (GA) in support of the agency’s vision to contribute to enhancing the resilience of communities in Australia and its region.

Features

• Written in Python:
  

  It is written in Python, and there is no dependency on proprietary tools. It should run on OS X, Windows, and Linux platforms.

• Flexible Facility Model:
  

  Facility data model is based on graph theory, allowing the user to develop arbitrarily complex custom facility models for simulation.

• Extensible Component Library:
  

  User can define new instances of component_type (the building blocks of a facility) and link it to existing or custom fragility algorithms.

• Component Criticality Analysis:
  

  Scenario Analysis tools allow users to identify the cost of restoration for chosen scenarios, expected restoration times, and which component upgrades can most benefit the system.

• Restoration Prognosis:
  

  User can experiment with different levels of hazards and post-disaster resource allocation to gauge restoration times for facility operations.

Contents

• 1 Introduction
• 2 Model Concepts
  • 2.1 The ‘System’ Model and Related Vocabulary
  • 2.2 System Loss Modelling
  • 2.3 System Restoration Model
• 3 Installation and Usage
  • 3.1 Requirements
  • 3.2 Setting Up a Development Environment
  • 3.3 Running the Core SIFRA Code
  • 3.4 Running Code Tests
• 4 Simulation Setup
  • 4.1 Scenario Definition File
  • 4.2 Facility Definition File
• 5 Component Fragility Attribution

• References
• Glossary

License

Copyright 2016, Geoscience Australia

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at:

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.