Authors: Vangelis Pitidis*, University of Warwick, Deodato Tapete, Italian Space Agency, Formerly at British Geological Survey (BGS), Jon Coaffee, University of Warwick, Joao Porto de Albuquerque, University of Warwick
Topics: Hazards and Vulnerability, Urban and Regional Planning, Urban Geography
Keywords: geohazards, urban resilience,policy implementation, 100 Resilient Cities, Thessaloniki
Session Type: Poster
Start / End Time: 9:55 AM / 11:35 AM
Room: Lincoln 2, Marriott, Exhibition Level
Presentation File: No File Uploaded
Urban resilience and its malleable definition have rendered its operationalisation a challenging endeavour for contemporary cities trying to address their organisational problems and confront uncertainty in a holistic manner. This research investigates the implementation challenges Resilient Strategies are facing due to lacking attention paid to urban geological risk. While urban geological risk is conceptualised as the combination of urban geohazards, geological vulnerability and exposure of the built environment, this work focuses on the case study of Thessaloniki, Greece, a city that joined the 100 Resilient Cities initiative in 2014 and published its “Resilience Strategy 2030” in 2017. After a review of Strategy and a combination of historical records of natural hazards with data from interviews with city officials, earthquakes and surface flooding were selected as the most relevant geohazards to be confronted for the city of Thessaloniki. Initially, geological vulnerability to earthquakes is examined in conjunction with exposure of the built environment, as an outcome of ageing building stock, high building densities and the urban configuration, in Acheiropoietos neighbourhood, within the historic centre of the city. Then, the geological risk to surface flooding in one of the municipalities of the metropolitan area of Thessaloniki, namely Perea in Thermaikos Municipality, is explored. Focusing on flash floods and this part demonstrates how limited considerations of local geomorphology as well as semi-regulated urban expansion and its limited connection with emergency planning increase exposure of the built environment to surface flooding. Lastly, some major implementation challenges for Thessaloniki's Resilience Strategy are presented.