phillipe gourbesville - "developing resilience strategies: implementation at the regional...

University of Nice – Sophia Antipolis / Polytech’Nice-Sophia

Developing Resilience Strategies Implementa4on at regional Level Building Resilience Workshop II

Prof. Dr. Philippe GOURBESVILLE [email protected]

hFp://www.corfu-‐fp7.eu/

University of Nice – Sophia Antipolis / Polytech’Nice-Sophia Ham

burg, Germ

any

Beijing, China

Nice,

France Barcelona, Spain

Mum

bai, India

Dhaka, Bangladesh

Seoul, Korea

Songdo, Korea

Taipei, Taiw

an

Case Studies


DPSIR (drivers-‐pressures-‐state-‐impact-‐response) logical framework

Responses

Driving Forces

Pressures State

Impact

DPSIR

Polices and

targets


Challenges for ci4es •  Fast urbaniza4on process especially in developing countries •  Land use compe44on (less space for water …) •  Increase of value (goods) •  Climate evolu4on •  Difficulty to integrate “dynamic standards” •  Increase of vulnerability •  Acceptability of level of risk •  Need for developing resilience strategie for the “City system”


Dhaka


Bangladesh


Dhaka


Resilience?


Dhaka

Year 1991 2005 2010 2015 2025

Population (mill)

7.3 10.05 12.2 14.9 21.63

Urbanisation km2

250 481 >1000


What is a city? Func4onal analysis / Systemic analysis / Holis4c approach Services provided to popula4on (spa4al extend):

•  Housing •  Work •  Safety •  Health •  Educa4on •  Leisure •  Religion


What is a city? Few support func4ons:

•  Energy •  Water •  Food •  Waste •  Transport

… Networks which have a growing inter-‐connec4vity


What is a city? Services and func4ons are covering various spa4al scales Evalua4on made according the 4 basic components:

•  parcel / building •  block •  district •  city


Challenge for the ci4es •  How the system is affected by flooding ? •  Which services & func4ons are affected? •  What are priori4es for popula4on? •  What is the level of risk acceptability? •  Most efficient ac4ons according to targets & evolu4on? •  Which strategy for resilience?


Type of flooding •  Rivers •  Groundwater •  Coastal •  Pluvial flooding

•  Characteris4cs & consequences are linked to topography / morphology


Challenge for the ci4es •  How the system is affected by flooding ? •  Which services & func4ons are affected? •  What are priori4es for popula4on? •  What is the level of risk acceptability? •  Most efficient ac4ons according to targets & evolu4on? •  Which strategy for resilience?


Principles for resilience •  From ini4al diagnos4c, inden4fied services and func4ons mainly affected At the regional level •  Need for a clear policy about flooding and risk •  Policy has to address the various spa4al levels and especially the block /district level which the most func4onal level •  Responsibility of state to define and implement this policy •  Based on land use regula4on (density and type of building) •  Define level of risk


Progressive Reclama4on of Mumbai


As a conclusion •  Adapt the city to hazards as much as possible (city, district, block, parcel) •  Develop the relevant policy •  Invest in ac4ons in order to support services and func4ons deeply impacted by flood •  Analyze the risk and monitor it (long term ac4on) •  Open debate of level of risk & living with flood concept •  Promote culture & educa4on about risk & flooding


Philippe GOURBESVILLE University of Nice – Sophia An5polis

[email protected]

Thanks for your a;en<on!

phillipe gourbesville - "developing resilience strategies: implementation at the regional...

Documents

germany nice

level of risk acceptability

risk policy

services func4ons

block district level

risk need

regional level need

possible city