Livable neighborhoods for sustainable cities: Insights from Barcelona

The paper proposes a reflection on the superblock model - or supermanzana, in its well-known Spanish application - in the context of the debate on the 15-minute city and on the functional reorganization of mobility and public space to improve the quality of life, health and accessibility in urban areas. The impacts of car traffic on the livability of cities and neighborhoods, in terms of safety, air pollution, noise, but also in terms of consumption and quality of public space, are widely acknowledged. These issues are not new to the debate: since the first decades of the 20th century, with the advent and rapid diffusion of the automobile, concerns on the impacts of vehicular traffic and issues of urban livability and traffic separation have been raised by urban and transport planners. As a consequence, various models of neighborhood planning emerged, proposing solutions to limit these impacts. The supermanzana model takes up the principles of neighborhood planning by identifying a main road network and setting up a system of superblocks within the meshes of this network, in order to improve accessibility, equity, health and livability; it aims on the one hand to transform public spaces at the neighborhood level and on the other hand to reorganize the existing urban structure. The application of the supermanzana model in Barcelona offers an interesting contribution to the debate on the 15-minute city, showing how the principle of traffic separation can be applied to existing, dense urban contexts, reclaiming public space to more livable neighborhoods and sustainable cities. The analysis of the case study of Barcelona can contribute to research and policy, learning from this experience and especially from the critical issues that emerged

Implementing the Supermanzana approach in Barcelona. Critical issues at local and urban level

To improve neighbourhood liveability and urban sustainability, Barcelona is seeking to re-organize its urban structure into superblocks, designed to discourage cut-through traffic and promote multiple uses of street space. Despite its potential, this approach is not without its limits, that should be properly taken into account. The implementation of the Supermanzana model in the Poblenou neighbourhood is explored in this paper to analyse its potentialities and constraints. Temporal synchronization between the urban level and the neighbourhood level turns out to be particularly important to reduce conflicts and criticalities

Governare la transizione alla guida autonoma in un’ottica di vivibilità urbana

La diffusione dei veicoli a guida autonoma (VGA) promette di avere un impatto dirompente sulla mobilità urbana. Se in un primo momento la letteratura scientifica si è concentrata su aspetti di innovazione tecnologica, sicurezza, normativa e sui dilemmi etici associati all’automazione dei processi decisionali, negli ultimi anni sta emergendo un dibattito sui potenziali impatti urbani e territoriali di questa innovazione tecnologica, e su come governarli. In particolare, stanno emergendo preoccupazioni in merito a possibili criticità che la diffusione dei VGA (soprattutto se lasciata al mercato e non propriamente guidata dall’amministrazione pubblica) potrebbe generare, quali una crescente dipendenza dall’auto, il declino del trasporto pubblico locale, la riduzione della mobilità attiva, lo sprawl, etc. Questo contributo presenta i risultati di un processo di backcasting collaborativo applicato sul caso studio di Torino, che ha definito una visione al 2050 basata sull’applicazione estensiva del modello dei superblocchi, e la roadmap per raggiungere tale visione, governando la diffusione dei VGA verso obiettivi di sostenibilità e vivibilità urbana. Gli esiti del progetto mostrano quanto indirizzare la transizione alla guida autonoma verso una visione desiderata sia un processo complesso, che richiede azioni già sul breve periodo, una pianificazione di medio e lungo periodo e la cooperazione tra molteplici soggetti e settori

METRO - The role and future perspectives of Cohesion Policy in the planning of Metropolitan Areas and Cities. Annex III: Metropolitan City of Turin case study

The Metropolitan City of Turin, which is one of the case studies of the ESPON METRO project, is a wide area, second level local authority which replaced the former Province of Turin from January 1st, 2015. The metropolitan institution brings together 312 municipalities, covering a very large and heterogeneous territory, from dense urban areas to small towns and villages, much larger than the functional urban area of Turin. It is the largest metropolitan city in Italy, fourth in population size (2.2Mln inhabitants) and seventh in population density (330 inh/km2). Metropolitan Cities are administrative units formally established in Italy by the reform of local authorities (National Law 56/2014), replacing the respective Province authorities. The Italian Metropolitan cities still perform all the functions of the previous Province authorities, and have additional functions, such as strategic, spatial and mobility planning, organization of coordinated systems for the management of public services, mobility and transport, promotion and coordination of digitalization and economic and social development. Despite the high level of institutionalization and competences of the Metropolitan City of Turin, which is formally acknowledged as an entity also enjoying a supranational relevance when it comes to access EU funds, the institution does not have relevant role and competences in the elaboration of key policy and programming documents of the EU cohesion policy and in their management and implementation, while the Region and the national level are the main actors. In this case study report, the potential and actual role of the Metropolitan City of Turin in the implementation of the cohesion policy, and the impact of the cohesion policy on metropolitan development and governance are analysed. After a territorial and socio-economic contextualization of the area, the metropolitan governance and cooperation activities are presented. Then, the cohesion policy institutional architecture and policy instruments are presented, and the role of the metropolitan actors in the planning and implementation of the cohesion policy is examined, as well as its coordination with metropolitan governance. The cohesion policy impact on metropolitan development and governance is then presented, analyzing the coherence and synergies of its instruments and goals with metropolitan ones, the funding magnitude and the related impact. Issues related to the response to the COVID-19 emergency are presented in each of the three core sections of the report. Finally, the last section of the report summarizes the main challenges and recommendations

METRO - The role and future perspectives of Cohesion Policy in the planning of Metropolitan Areas and Cities. Policy brief: The added value of the EU cohesion policy in the planning and implementation of metropolitan policies

This policy brief seeks to unpack the multiple added value of the European Union (EU) cohesion policy in metropolitan areas by exploring its priorities, funds and geographical distribution as well as the successful outcomes. Starting from the idea that the metropolitan scale is the most relevant to deal with those ‘functional’ issues that have a scope that exceeds the municipal boundaries (such as mobility, economic development, climate change etc.), this policy brief offers an overview of the added value of the EU cohesion policy on the planning and implementation of metropolitan policies in the 2014-20 programming period and elaborates a set of recommendations for policy and decision makers aiming at increasing this added value in the programming period 2021-27. Based on the nine case studies explored in the ESPON METRO targeted analysis, which include the metropolitan areas of Barcelona, Brno, Brussels, Florence, Gdańsk-Gdynia-Sopot, Lisbon, Lyon, Riga and Turin, this policy brief aims to support planners and policy officers in making well-informed decisions at EU, national and local level, when it comes to maximise the added value that the EU cohesion policy can provide to metropolitan development and policies. It does so by presenting possible ways of dealing with the complexity of the multiple impacts of cohesion policy and its metropolitan dimension

METRO - The role and future perspectives of Cohesion Policy in the planning of Metropolitan Areas and Cities. Policy brief: The role of metropolitan areas in the EU cohesion policy

This policy brief focuses on the role that metropolitan area plays, and may play, in the development, management and implementation of the EU cohesion policy. The information it includes is drawn from the ESPON METRO project, and in particular from the 9 in-depth case studies that have been analysed through the project: Barcelona Metropolitan Area, Brno Metropolitan Area, Brussels-Capital Region, Metropolitan City of Florence, Metropolitan Area of Gdańsk-Gdynia-Sopot, Lisbon Metropolitan Area, Métropole de Lyon, Riga Metropolitan Area, Metropolitan City of Turin. More in detail, the provided information discusses the different levels of engagement of metropolitan areas around Europe with the different stages of the EU cohesion policy development, the various programmes and instruments that have been put in place in different contexts as well as the coordination mechanisms that, in different metropolitan areas, have been put in place to ensure a stronger coherence between metropolitan governance and policy and the EU cohesion policy. The document also reflects on the engagement of the business actors and the civil society, as well as on the role that metropolitan areas are playing in the framework of the Recovery and Resilience Facility

SURFACE FUNCTIONALIZATION OF 3D GLASS-CERAMIC POROUS SCAFFOLDS FOR ENHANCED MINERALIZATION IN VITRO

Bone reconstruction after tissue loosening due to traumatic, pathological or surgical causes is in increasing demand. 3D scaffolds are a widely studied solution for supporting new bone growth. Bioactive glass–ceramic porous materials can offer a three-dimensional structure that is able to chemically bond to bone. The ability to surface modify these devices by grafting biologically active molecules represents a challenge, with the aim of stimulating physiological bone regeneration with both inorganic and organic signals. In this research work glass ceramic scaffolds with very high mechanical properties and moderate bioactivity have been functionalized with the enzyme alkaline phosphatase (ALP). The material surface was activated in order to expose hydroxyl groups. The activated surface was further grafted with ALP both via silanization and also via direct grafting to the surface active hydroxyl groups. Enzymatic activity of grafted samples were measured by means of UV–vis spectroscopy before and after ultrasonic washing in TRIS–HCl buffer solution. In vitro inorganic bioactivity was investigated by soaking the scaffolds after the different steps of functionalization in a simulated body fluid (SBF). SEM observations allowed the monitoring of the scaffold morphology and surface chemical composition after soaking in SBF. The presence of ALP enhanced the in vitro inorganic bioactivity of the tested material