To rapidly adapt cities to the growing impacts of climate change, the open space system can play important functions as climate regulators and accelerators of sustainable urban development. To this end, this paper aims to provide a methodology that classifies open spaces on the basis of their physical characteristics and their contribution to climate vulnerability and articulates them according to the costs required for adaptation and the benefits brought. The method was applied to the city of Naples, which is an interesting case study due to its heterogeneous territory in terms of geomorphological features, such as hilly conformation and coastal location, and urban assets characterised by densely built urban fabrics with different distributions and kinds of activities. The results showed that (i) the open spaces with both low thermal and hydraulic performance are predominantly located in the peripheral part of the city, and (ii) the central area is strongly characterised by this dual issue. The latter output confirms the need to update the transformation rules of high historical-architectural value areas by introducing new resilience requirements criteria that cities are asked to have.

The contributions of this paper are the result of a thematic review conducted on some of the most relevant scientific contributions and policy guidelines about women’s perception of safety while walking in public spaces. The first part of the review focused on 23 scientific references revolving around the keywords “gender”, “safety” and “walkability”. This led to the establishment of three main Safety Factors: (i) Spatial Features (space characteristics/morphological features); (ii) City Use (traces of behavior and presence of city users); and (iii) Hotspots (safe havens and no-go areas); further resulting in 19 sub-factors. The second part of the review covered a collection of 20 reports and 10 guidelines focused on diverse geographical scales, areas of interest and target audiences, as well as data collection methods. This involved the selection of multiple case studies, which are also presented, thus maintaining a geographically diverse sample. As part of the scientific research project “STEP UP—Walkability for Women in Milan”, the outputs of the proposed thematic review will be exploited to help identify challenging areas of Milan (Italy), as samples of analysis to develop a set of policy recommendations to enhance the level of walkability for women.

Balancing urban growth and natural resource availability has been recognized as the main challenge of the 21st century from the strategic documents adopted by the recent World Summits. Agenda 21 advocates sustainable land use, as soil is a crucial natural resource to reduce urban vulnerability due e.g. to climate change, energy saving, and natural disasters. In this perspective, this paper aims at supporting local decision makers in identifying the portions and the buildings of an urban area most susceptible to transformation, in order to promote a sustainable land use according to physical and functional characteristics. The proposed methodology combines the 3D modeling of urban settlements and the adoption of the performance-based approach by the urban transformation government, in order to guarantee the satisfaction of the supply–demand ratio through a compatible balance between urban growth dynamics and the overall urban efficiency. The test area was Gozo island, where a significant urban transformation will occur as a consequence of the new Malta-Gozo tunnel construction.

The phenomenon of rapid and unplanned urban growth, driven by the migration from rural to urban areas, has hindered healthy urbanization and undermined sustainable development. Sustainability assessment has become one of the popular terms in different fields, especially in architecture and urban planning, and world leading urban sustainability assessment tools have been proposed. Each tool is based on a set of weighted evaluation parameters, related to some main sustainability dimension (environment, economy, society …), and requires to reach a sustainability threshold. In this paper, after a brief review of the state of the art, a linear optimization model is presented, which aimed to find the minimum set of parameters needed to guarantee the sustainability threshold for each tool, taking into account all the sustainability dimensions. The model has been positively experienced with 144 input parameters belonging to five assessment tools. The tests prove that this procedure is able to summarize and overcome the choices made by the certifying bodies. Indeed the proposed optimization model selected 26 parameters of the five tools. The majority of the selected parameters are related to the environmental emergency that in recent decades has characterized—and still affects—urban systems.

During the next three decades the “grey” segment of population will grow by nearly 80% in many developed countries such as Italy. The structure and the design of outdoor spaces and the related walkable network can improve the quality of life of old population, making it “active” by promoting social engagement and health-based activities. In this perspective, this paper provides a GIS-based methodology that, starting from the physical characteristics of the pedestrian network and the urban context influencing the choice of a route, is aimed at defining the pedestrian network suitable for the elderly for achieving some of the main activities of their interest. This goal represents a step of the MOBILAGE project, aiming to define a decision support tool for public administrations to quality of life of elderly.