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GUIDANCE TO SUPPORT SEPA AND THE RESPONSIBLE AUTHORITIES

Description
ISBN9781786522214
Official Print Publication Date
Website Publication DateJune 02, 2016

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Options appraisal for flood risk management: Guidance to support SEPA and the responsible authorities, First Edition

ISBN 978 1 78652 221 4 (Web only publication)
PPDAS 69785

This document is also available in pdf format (1.2MB)

Contents

1. Introduction
1.1. Purpose
1.2. Aim of options appraisal

2. Framework for appraisal

3. Stage one: defining the purpose
3.1. Define the purpose
3.2. Set objectives

4. Stage two: develop, describe and value
4.1. Introduction
4.2. Identify a long list of actions
4.3. Screening the long-list of actions
4.4. Shortlist of actions: developing options
4.5. The 'do nothing'/'do minimum' option
4.6. The 'do something' options

5. Describe and value: appraising the options
5.1. Components for the appraisal
5.2. Appraisal techniques
5.3. Principles for valuing costs and benefits
5.4. Setting boundaries for the appraisal
5.5. A proportionate approach
5.6. Appraisal summary tables

6. Assessing economic impacts
6.1. Introduction
6.2. Residential and non-residential property
6.3. Distributional Impacts analysis for residential properties
6.4. Indirect impacts on non-residential properties
6.5. Temporary and semi-permanent structures
6.6. Emergency costs
6.7. Infrastructure
6.8. Transport
6.9. Agriculture
6.10. Future land use: development and regeneration

7. Assessing social impacts
7.1. Introduction
7.2. Risk to life
7.3. Flood impacts on human health
7.4. Social vulnerability to flooding
7.5. Recreation

8. Assessing environmental impacts
8.1. Introduction
8.2. Assessing impacts on environmental receptors
8.3. Frameworks for assessing impacts
8.5. Water environment
8.6. Biodiversity, flora and fauna
8.7. Air and soil
8.8. Climatic factors
8.9. Landscape
8.10. Cultural heritage

9. Estimating flood risk management benefits
9.1. Introduction
9.2. Expected flood hazard
9.3. Changes in flood damages
9.4. The upper limit to damages
9.5. Constructing loss-probability curves for monetary damages
9.6. Above-design-standard benefits
9.7. Freeboard
9.8. Future flood risk

10. Estimating whole life costs
10.1. Introduction
10.2. Cost estimates
10.3. Price indices
10.4. Discontinuities in costs
10.5. Residual values
10.6. Mitigation costs
10.7. Contributions from others
10.8. Optimism bias

11. Stage three: compare and select the most sustainable option
11.1. Introduction
11.2. The decision process
11.3. Meeting the objectives
11.4. Best value for money
11.5. Wider impacts and delivery of multiple benefits
11.6. Uncertainties and risks
11.7. Sensitivity analysis and robustness testing

12. Post project evaluation

13. References

14. Glossary

Appendix 1: Principles for assessing costs and benefits - further information
A1.1 Principles
A1.2 Price basis for economic valuation
A1.3 What is a benefit and what is a cost?
A1.4 Transfer payments
A1.5 Discounting