Marc Velasco (Spain) 1; Beniamino Russo (Spain) 1; Ignasi Fontanals (Spain) 2; Lluís Fontanals (Spain) 2; Pere Malgrat (Spain) 1
1 - Aquatec - SUEZ Advanced Solutions; 2 - Opticits
We live in an urban world to which climate change will cause impacts and uncertainties. Urban services may be affected by future climate threats. That is why for the city of Barcelona and within the framework of the RESCCUE Project (www.resccue.eu), the interdependencies between the different services and critical infrastructures of the city have been analysed. Through the analysis of the cascading effects, the potential direct and indirect impacts associated with climate change and a diagnosis of the resilience of the city can be assessed.
In order to do so, the HAZUR methodology for the analysis of urban resilience has been implemented. The methodology and platform ensure an analysis of the urban resilience with a strong transversal character, involving all the key urban actors that affect, in some way, the resilience of the urban system under study.
The application of this methodology implied the creation of 56 urban services grouped into 8 sectors. The sectors analysed were the water sector, energy, telecommunications, mobility, emergencies, public health, environment and waste.
With the information obtained through the interviews and after the validation made in workshops, an array of interdependencies was generated with thousands of relationships between the different services. Most interdependencies were established at the service level but in some cases, when the analysis required it, the relationships were made at the infrastructure level considering some of the 786 infrastructures identified.
With all this, a resilience map can be generated, which allows to conceptually understand the relationships existent between the different services and infrastructures of the city. Thus, it is very easy to see which services are the main donors in the city (such as those related to the electrical sector, water and telecommunications) and which are the main receivers (such as public health, the environment, etc.).
Then, using the climatic projections, the main impacts related to climate change can be simulated. With the creation of the What-If analysis and the simulations carried out with the different sectorial models, the effects of these impacts can be analysed at the initial time of the impact, or at a later time step due to the propagation of cascading effects.
A study like this one done in the framework of the RESCCUE Project, allows to do a holistic study of complex cities such as Barcelona, thus enabling the capacity to respond to all types of impacts, both current and future.