Articles | Volume 13, issue 2
Nat. Hazards Earth Syst. Sci., 13, 221–230, 2013

Special issue: Natural hazard resilient cities

Nat. Hazards Earth Syst. Sci., 13, 221–230, 2013

Research article 06 Feb 2013

Research article | 06 Feb 2013

Analyzing resilience of urban networks: a preliminary step towards more flood resilient cities

S. Lhomme1,2, D. Serre1, Y. Diab1,3, and R. Laganier2 S. Lhomme et al.
  • 1Université Paris EST (EIVP), Paris, France
  • 2Université Paris Diderot (PRODIG), Paris, France
  • 3Université Paris EST (LEESU), Paris, France

Abstract. In Europe, river floods have been increasing in frequency and severity. These circumstances require the management of flood risk by integrating new concepts like urban resilience. Nevertheless, urban resilience seems to have no accurate meanings. That is why researchers are primarily concerned with defining resilience. Nevertheless, focus on research object seems to be more important than focus on conceptual debate (Resilience of what? Rather than what is resilience?). Thus the methodology designed here is focused on urban considerations. In fact, a system approach emphasizes technical networks' importance concerning urban resilience. Principles and assumptions applied in this research finally lead to the analysis of how urban networks are able to face natural hazards. In this context, a Web-GIS has been developed for analyzing resistance capacity, absorption capacity and recovery capacity of different technical networks. A first application has been carried out on a French agglomeration in order to analyze road network absorption capacity. This application is very specific but, thanks to this example, it is already possible to highlight the methodology's usefulness.