scholarly journals Positive Energy District Replication - Case Study of the City of Trencin, Slovakia

2021 ◽  
Vol 1203 (2) ◽  
pp. 022087
Author(s):  
Vladimir Ondrejicka ◽  
Michal Hajduk ◽  
Lubomir Jamecny ◽  
Milan Husar ◽  
Matej Jasso
Keyword(s):  
Urban Planning ◽  
Urban Areas ◽  
Residential Buildings ◽  
Planning System ◽  
City Centre ◽  
Positive Energy ◽  
Low Carbon ◽  
The Core ◽  
Urban Energy ◽  
The City

Abstract Energy efficiency has been of the key topics for urban planning for the past few years in relation to sustainable development, resilience as well as climate change. There are many technological approaches aiming at efficient use of energy, innovative technologies and renewable sources of energy, but what is often missing is its relation to spatial planning and planning system and documentation. Horizon 2020 project Making City is striving to promote Positive Energy District (PED) planning and methodology aiming at development of new integrated strategies to address the urban energy system transformation towards low carbon cities, with the PED approach as the core of the urban energy transition pathway. It is implemented on the level of cities and city districts, having two types of areas – two lighthouse cities and six follower cities. The city of Trencin (Slovakia) is one of the follower cities where multiple urban areas have been selected to replicate the PED concept developed by the project consortium. Trencin is the eight largest city is Slovakia with a rich manufacturing history in textile and arms industry. It is currently focusing on diversified its economic activities in the sectors of tourism, innovation, culture and industry. The PED replication will involve a broader city centre area including multiple municipal buildings (schools and sports infrastructures) and residential buildings (individual housing and apartments). The following paper describes the key notions from the PED concept providing a holistic approach on harmonizing energy and urban planning for energy. It evolved from single, unintegrated, simple “building” based interventions into PED concepts looking forward to reaching energy and climate targets which will lead to an integrated energy planning. The paper further explores this PED approach in the city of Trencin, including the challenges it had to overcome during the implementation, as well as perspectives for its future development. The aim of the project further on is to create a standardized concept ready to be the core of specific urban energy transitions planning processes.

scholarly journals Depressed spaces as an instrument for transformation of urban areas

2020 ◽  
Vol 217 ◽  
pp. 02008
Author(s):  
Valentina Kurochkina
Keyword(s):  
Urban Planning ◽  
Urban Environment ◽  
Urban Areas ◽  
Planning System ◽  
Urban Systems ◽  
Social Significance ◽  
The Creation ◽  
The Impact ◽  
The City

Recently, more and more often urban abandoned and depressed spaces that were previously used as industrial facilities or temporarily used are becoming the sphere of architectural and landscape transformations. These territories can occupy a significant part of the city. This paper examines the features of the formation of urban planning systems, as well as the impact of depressed spaces on the quality of the urban environment. This paper studies such depressed spaces as abandoned industrial areas and objects of unfinished construction. The paper assesses the impact of depressed spaces, identifies criteria that reflect the nature, scale and features of their impact on the environment, on the safety and quality of the urban environment, as well as their role in the structure of the city as a whole. The principles and features of the formation of such urban depressed spaces, as well as the patterns of their development are revealed. The features of the formation of open public space of urban systems, as well as ways of transforming depressed spaces, aimed at increasing their social significance, integrating them into the general urban development, and improving the ecological and social situation are considered. The paper concludes that the problem of restoration of depressed spaces is very important and urgent today. The creation of a continuous urban tissue is impossible without the reorganization of such spaces, as well as the creation of an integral compositional, functional and communication urban planning system.

scholarly journals LANDSCAPE APPROACH IN CITY-PLANNING

2018 ◽  
Vol 13 (3) ◽  
pp. 71-82 ◽  
Author(s):  
Boris I. Kochurov ◽  
Yulia A. Khaziakhmetova ◽  
Irina V. Ivashkina ◽  
Ekaterina A. Sukmanova
Keyword(s):  
Urban Planning ◽  
Urban Space ◽  
Urban Areas ◽  
City Planning ◽  
Planning System ◽  
Urban Landscapes ◽  
Landscape Approach ◽  
Visual Research Methods ◽  
Architectural Styles ◽  
The City

Aim. The aim is to justify the application of the landscape approach in urban planning on the basis of theoretical concepts of landscape studies and the requirements of urban planning practices. Discussion. The basic scheme of the landscape approach is to study the natural and anthropogenic landscape as a complex geosystem consisting of a complex of various components which form the planning structure of the city. In territorial and urban planning, the structure and properties of natural and urban landscapes are revealed using functional, historical-genetic, morphotypic, geo-ecological and visual research methods. Abroad, a similar trend is called "landscape urbanism", the theoretical basis of which is based on the understanding that the best option for the organization of urban areas should be based on the landscape features of the city. With the use of the above-mentioned approaches, an urban landscape approach is being formed, a new nature-urban planning system which, in addition to natural complexes, includes man-made structures: buildings, infrastructure, parks and squares. If the natural landscape is a self-regulating geo-system, then the urban one is controlled by man. When taking actions to transform natural landscapes should be taken into account their structure and functioning, as well as the limits of possible impacts and the likely consequences of these changes. Conclusion. The demand for a landscape approach is constantly growing as a result of the significant transformation of modern cities, the replacement of architectural styles, the growth of urban space and communications, the desire to improve the quality of the urban environment and the comfort of the urban population.

scholarly journals Challenges and Barriers for Net‐Zero/Positive Energy Buildings and Districts—Empirical Evidence from the Smart City Project SPARCS

Buildings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 78
Author(s):  
Daria Uspenskaia ◽  
Karl Specht ◽  
Hendrik Kondziella ◽  
Thomas Bruckner
Keyword(s):  
Smart City ◽  
Urban Areas ◽  
Smart Cities ◽  
Scale Up ◽  
Practical Experience ◽  
Positive Energy ◽  
Low Carbon ◽  
Net Zero ◽  
Multidimensional Representation

Without decarbonizing cities energy and climate objectives cannot be achieved as cities account for approximately two thirds of energy consumption and emissions. This goal of decarbonizing cities has to be facilitated by promoting net-zero/positive energy buildings and districts and replicating them, driving cities towards sustainability goals. Many projects in smart cities demonstrate novel and groundbreaking low-carbon solutions in demonstration and lighthouse projects. However, as the historical, geographic, political, social and economic context of urban areas vary greatly, it is not always easy to repeat the solution in another city or even district. It is therefore important to look for the opportunities to scale up or repeat successful pilots. The purpose of this paper is to explore common trends in technologies and replication strategies for positive energy buildings or districts in smart city projects, based on the practical experience from a case study in Leipzig—one of the lighthouse cities in the project SPARCS. One of the key findings the paper has proven is the necessity of a profound replication modelling to deepen the understanding of upscaling processes. Three models analyzed in this article are able to provide a multidimensional representation of the solution to be replicated.

scholarly journals Understanding Spatial Variability of NO2 in Urban Areas Using Spatial Modelling and Data Fusion Approaches

Atmosphere ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 179
Author(s):  
Said Munir ◽  
Martin Mayfield ◽  
Daniel Coca
Keyword(s):  
Data Fusion ◽  
Spatial Variability ◽  
Urban Areas ◽  
Road Traffic ◽  
Dispersion Model ◽  
Low Cost ◽  
Spatial Modelling ◽  
City Centre ◽  
Small Scale ◽  
The City

Small-scale spatial variability in NO2 concentrations is analysed with the help of pollution maps. Maps of NO2 estimated by the Airviro dispersion model and land use regression (LUR) model are fused with measured NO2 concentrations from low-cost sensors (LCS), reference sensors and diffusion tubes. In this study, geostatistical universal kriging was employed for fusing (integrating) model estimations with measured NO2 concentrations. The results showed that the data fusion approach was capable of estimating realistic NO2 concentration maps that inherited spatial patterns of the pollutant from the model estimations and adjusted the modelled values using the measured concentrations. Maps produced by the fusion of NO2-LCS with NO2-LUR produced better results, with r-value 0.96 and RMSE 9.09. Data fusion adds value to both measured and estimated concentrations: the measured data are improved by predicting spatiotemporal gaps, whereas the modelled data are improved by constraining them with observed data. Hotspots of NO2 were shown in the city centre, eastern parts of the city towards the motorway (M1) and on some major roads. Air quality standards were exceeded at several locations in Sheffield, where annual mean NO2 levels were higher than 40 µg/m3. Road traffic was considered to be the dominant emission source of NO2 in Sheffield.

scholarly journals Imagining the smart city through smart grids? Urban energy futures between technological experimentation and the imagined low-carbon city

Urban Studies ◽  
2021 ◽  
pp. 004209802110059
Author(s):  
Leslie Quitzow ◽  
Friederike Rohde
Keyword(s):  
Smart Grid ◽  
Urban Development ◽  
Smart City ◽  
Smart Grids ◽  
Urban Policy ◽  
Radical Change ◽  
Low Carbon ◽  
Energy Futures ◽  
Urban Energy ◽  
The City

Current imaginaries of urban smart grid technologies are painting attractive pictures of the kinds of energy futures that are desirable and attainable in cities. Making claims about the future city, the socio-technical imaginaries related to smart grid developments unfold the power to guide urban energy policymaking and implementation practices. This paper analyses how urban smart grid futures are being imagined and co-produced in the city of Berlin, Germany. It explores these imaginaries to show how the politics of Berlin’s urban energy transition are being driven by techno-optimistic visions of the city’s digital modernisation and its ambitions to become a ‘smart city’. The analysis is based on a discourse analysis of relevant urban policy and other documents, as well as interviews with key stakeholders from Berlin’s energy, ICT and urban development sectors, including key experts from three urban laboratories for smart grid development and implementation in the city. It identifies three dominant imaginaries that depict urban smart grid technologies as (a) environmental solution, (b) economic imperative and (c) exciting experimental challenge. The paper concludes that dominant imaginaries of smart grid technologies in the city are grounded in a techno-optimistic approach to urban development that are foreclosing more subtle alternatives or perhaps more radical change towards low-carbon energy systems.

scholarly journals Prediction of Socio-Economic Indicators for Urban Planning Using VHR Satellite Imagery and Spatial Analysis

2020 ◽  
Vol 12 (11) ◽  
pp. 1730 ◽  
Author(s):  
Gebhard Warth ◽  
Andreas Braun ◽  
Oliver Assmann ◽  
Kevin Fleckenstein ◽  
Volker Hochschild
Keyword(s):  
Spatial Analysis ◽  
Urban Planning ◽  
Urban Areas ◽  
Residential Buildings ◽  
Dynamic Change ◽  
Training Data ◽  
Infrastructure Planning ◽  
Economic Point ◽  
Steady Growth ◽  
Building Typology

Ongoing urbanization leads to steady growth of urban areas. In the case of highly dynamic change of municipalities, due to the rates of change, responsible administrations often are challenged or struggle with capturing present states of urban sites or accurately planning future urban development. An interest for urban planning lies on socio-economic conditions, as consumption and production of disposable goods are related to economic possibilities. Therefore, we developed an approach to generate relevant parameters for infrastructure planning by means of remote sensing and spatial analysis. In this study, the single building defines the spatial unit for the parameters. In the case city Belmopan (Belize), based on WorldView-1 data we manually define a city covering building dataset. Residential buildings are classified to eight building types which are locally adapted to Belmopan. A random forest (RF) classifier is trained with locally collected training data. Through household interviews focusing on household assets, income and educational level, a socio-economic point (SEP) scaling is defined, which correlates very well with the defined building typology. In order to assign socio-economic parameters to the single building, five socio-economic classes (SEC) are established based on SEP statistics for the building types. The RF building type classification resulted in high accuracies. Focusing on the three categories to describe residential socio-economic states allowed high correlations between the defined building and socio-economic points. Based on the SEP we projected a citywide residential socio-economic building classification to support supply and disposal infrastructure planning.

scholarly journals A new clustering and visualization method to evaluate urban energy planning scenarios

2018 ◽  
Author(s):  
Sara Torabi Moghadam ◽  
Silvia Coccolo ◽  
Guglielmina Mutani ◽  
Patrizia Lombardi ◽  
Jean Louis Scartezzini ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Urban Areas ◽  
Energy Demand ◽  
Planning Process ◽  
Energy Transition ◽  
Climatic Conditions ◽  
Energy Planning ◽  
Transition Strategies ◽  
Urban Energy ◽  
The City

The spatial visualization is a very useful tool to help decision-makers in the urban planning process to create future energy transition strategies, implementing energy efficiency and renewable energy technologies in the context of sustainable cities. Statistical methods are often used to understand the driving parameters of energy consumption but rarely used to evaluate future urban renovation scenarios. Simulating whole cities using energy demand softwares can be very extensive in terms of computer resources and data collection. A new methodology, using city archetypes is proposed, here, to simulate the energy consumption of urban areas including urban energy planning scenarios. The objective of this paper is to present an innovative solution for the computation and visualization of energy saving at the city scale.The energy demand of cities, as well as the micro-climatic conditions, are calculated by using a simplified 3D model designed as function of the city urban geometrical and physical characteristics. Data are extracted from a GIS database that was used in a previous study. In this paper, we showed how the number of buildings to be simulated can be drastically reduced without affecting the accuracy of the results. This model is then used to evaluate the influence of two set of renovation solutions. The energy consumption are then integrated back in the GIS to identify the areas in the city where refurbishment works are needed more rapidly. The city of Settimo Torinese (Italy) is used as a demonstrator for the proposed methodology, which can be applied to all cities worldwide with limited amount of information.

scholarly journals Green Spaces in Residential Areas of Dar es Salaam City: Types, Coverage and Uses

2021 ◽  
Vol 14 (3) ◽  
pp. 121
Author(s):  
Nicholaus Mwageni ◽  
Robert Kiunsi
Keyword(s):  
Urban Areas ◽  
Green Space ◽  
Dar Es Salaam ◽  
Economic Benefits ◽  
Natural Vegetation ◽  
Green Spaces ◽  
City Centre ◽  
Building Density ◽  
Dar Es Salaam City ◽  
The City

Green spaces in urban areas including in Dar es Salaam City provide multiple ecological, social and economic benefits. Despite their benefits they are inadequately documented in terms types, coverage and uses. This paper attempts to provide information on types, coverage and uses of green space in Dar es Salaam City. A number of methods including literature review, interpretation of remotely sensed image, interviews, focus group discussions and questionnaires were used to document city greenery. The research findings show that residential greenery is made up of greenery found within and external to plots. The dominant green spaces external to residential plots were natural and semi natural vegetation while within plots were woody plants, plots farms vegetable and ornamental gardens. Distribution of greenery varied among the wards due to differences in building density and distance from the city centre. Natural and semi natural vegetation increased with decrease of building density and increase of distance from the city centre, while the number of plots with trees for shade increased with increase of building density. Only Kawe ward that had greenery above Tanzania space planning standards, the other three wards which are informal settlements had green space deficit. Three quarters of the households use green spaces for shade provision and cooling, two thirds as a source of food products and a quarter for recreation and aesthetic purposes. The study reveals that Dar es Salaam City residents invest predominantly on shade trees in their residential plots compared to other green space types.

scholarly journals Nueva York 1916. La ciudad sin límites | New York 1916. Unlimited city

ZARCH ◽  
2017 ◽  
pp. 90
Author(s):  
José Durán Fernández
Keyword(s):  
New York ◽  
Twentieth Century ◽  
New York City ◽  
Urban Planning ◽  
20Th Century ◽  
Urban Space ◽  
York City ◽  
Planning System ◽  
Siglo Xx ◽  
The City

La Ciudad de Nueva York fue pionera en la aplicación de un sistema de planificación de control urbano que pusiera orden y concierto a una ciudad que rebasa los 5 millones de habitantes a principios del siglo XX. Tal complejo organismo urbano, inédito hasta ese momento, fue objeto del más ambicioso plan urbano sobre una ciudad construida.Este artículo se destina al estudio de este originario plan urbano de 1916, el cual sentaría las bases, unas ciertamente visionarias otras excesivas, de la construcción de la Ciudad de Nueva York en todo el siglo XX. La Building Zone Resolution se creó con dos fines: resolver los problemas de congestión humana en un espacio reducido, la ciudad del presente, y proponer una visión del espacio urbano en las décadas venideras, la ciudad del futuro.El artículo es un compendio de diez textos cortos y un epílogo, que junto a sus respectivos diez documentos gráficos, construyen el corpus de la investigación. El lector pues se enfrenta a un ensayo gráfico formado por pequeños capítulos que le sumergirán en los orígenes de la primera ciudad vertical de la historia.PALABRAS CLAVE: Nueva York; Planeamiento; Visión urbana.The city of New York was a pioneer in the implementation of an urban control planning system that set in order a city that exceeds five million people in the early twentieth century. Such complex urban organism – invaluable until that moment – was the target for the most ambitious urban planning on a built city.This paper focuses on the study of this initial urban planning from 1916, which would set the basis, certainly some visionary yet others excessive, for the building of New York City throughout the 20th century. The Building Zone Resolution was created with two purposes: to solve the issues related to the human bundle in a limited space, the city of the present, and to aim a vision of the urban space in the forthcoming decades, the city of the future.The article is a compendium of ten short texts and one epilogue, which in combination with ten graphic documents, frame the corpus of this investigation. Thus, the reader will face a graphic essay composed by a series of brief chapters that highlight the beginning of the first vertical city in history.KEYWORDS: New York; Planning; Urban vision.

Urban DAS recording of a vibroseismic campaign with a 21km-long dark fibre in Potsdam, Germany

2021 ◽  
Author(s):  
CharLotte Krawczyk ◽  
Christopher Wollin ◽  
Stefan Lüth ◽  
Martin Lipus ◽  
Christian Cunow ◽  
...  
Keyword(s):  
Urban Areas ◽  
District Heating ◽  
Telecommunication Networks ◽  
Seismic Exploration ◽  
City Centre ◽  
Data Set ◽  
Geothermal Potential ◽  
First Results ◽  
Local Geology ◽  
The City

<p>The de-carbonization strategy of the city of Potsdam, Germany, incorporates the utilization of its geothermal potential.  As a first step of developing a deep geothermal project for district heating, an urban seismic exploration campaign of the Stadtwerke Potsdam took place in December 2020 in the city centre of Potsdam.  Since urban measurements are often difficult to setup and a low-footprint alternative is sought for, we supplemented the contractor-performed Vibroseis survey along three profiles by distributed acoustic sensing (DAS).  In close cooperation with the municipal utilities, we interrogated a 21 km-long dark telecommunication fibre whose trajectory followed the seismic lines as close as possible.  This was accompanied by a network of 15 three-component geophones for further control and research.</p><p>In this contribution we present the data set, the approach for geo-referencing the fibre, and first results regarding DAS recording capabilities of vibroseismic signals in an urban environment.  Following the paradigm that the high density of telecommunication networks in urban areas may facilitate the exploration of the often insufficiently known local geology, we strive to further shed light on the possibilities of their employment for urban exploration.  In this respect we aim at tackling the question of the accuracy of fibre localization, recording sensitivity and range of active stimulation.</p>

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