Multi-faceted stresses of social, environmental, and economic nature are increasingly challenging the existence and sustainability of our societies. Cities in particular are disproportionately threatened by global issues such as climate... more
Multi-faceted stresses of social, environmental, and economic nature are increasingly challenging the existence and sustainability of our societies. Cities in particular are disproportionately threatened by global issues such as climate change, urbanization, population growth, air pollution, etc. In addition, urban space is often too limited to effectively develop sustainable, nature-based solutions while accommodating growing populations. This research aims to provide new methodologies by proposing lightweight green bridges in inner-city areas as an effective land value capture mechanism. Geometry analysis was performed using geospatial and remote sensing data to provide geometrically feasible locations of green bridges. A multi-criteria decision analysis was applied to identify suitable locations for green bridges investigating Central European urban centers with a focus on German cities as representative examples. A cost-benefit analysis was performed to assess the economic feasi...
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This paper focuses on the microclimatic features of open spaces in the centre of urban blocks and their microclimatic effects on the adjoining buildings and on the parent city at large. The paper reports on air and surface temperature,... more
This paper focuses on the microclimatic features of open spaces in the centre of urban blocks and their microclimatic effects on the adjoining buildings and on the parent city at large. The paper reports on air and surface temperature, relative humidity, air velocity and illuminance readings taken in the summer of 2003 in four urban blocks in the city of Thessaloniki, northern Greece. The measurements revealed microclimatic differences, between, as well as within, the four blocks and were used for the calibration of microclimate simulation software ENVI-met. Microclimatic simulations together with solar access studies were performed to investigate possible environmental improvements. The paper summarises the resulting design proposals for microclimatic modifications that can support a variety of uses of the spaces, as well as potential improvements to environmental conditions in the surrounding buildings.
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... The results indicate the possibility for improvement of the microclimate and initiate questions regarding the potential effect on interior spaces of the surrounding buildings in terms of energy consumption. ... The solar envelope; its... more
... The results indicate the possibility for improvement of the microclimate and initiate questions regarding the potential effect on interior spaces of the surrounding buildings in terms of energy consumption. ... The solar envelope; its meaning for urban growth and form. Proc. ...
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Microclimatic conditions in open spaces are affected, among other parameters, by the morphology of the urban tissue and by the properties of surfaces. This paper presents measured data of air and surface temperatures, wind speed and... more
Microclimatic conditions in open spaces are affected, among other parameters, by the morphology of the urban tissue and by the properties of surfaces. This paper presents measured data of air and surface temperatures, wind speed and relative humidity, taken in June and August 05, in five open spaces, in the city of Thessaloniki, Greece, to examine the effects of different
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Global warming and the urban heat island (UHI) phenomenon threat to render open urban spaces hostile or even dangerous during summer days. The problem concerns a great part of the world population considering the ongoing assemblage of... more
Global warming and the urban heat island (UHI) phenomenon threat to render open urban spaces hostile or even dangerous during summer days. The problem concerns a great part of the world population considering the ongoing assemblage of people in cities. Enriching the urban fabric with natural landscapes qualifies as the best solution. However, the redevelopment of the functional parts of the urban fabric is a particularly difficult task, especially in times of financial crisis, but small, unused pieces of land which are often found in cities, can be more easily converted into green neighborhood parks (pocket parks). To investigate the impact of the dispersion of these spaces on the urban microclimate, the present study analyzes a section of eleven building blocks in the center of the city of Serres, in northern Greece. Concerning the hypothesis of the conversion of ten existing unused small spaces into parks, the result is the improvement of the climatic quantities and thermal comfort during the summer season. In conclusion, the dispersion of small neighborhood parks in the city is a useful tool to mitigate the UHI phenomenon and at the same time a method of upgrading the urban fabric and the quality of life of the residents.