Urban scale digital twins in data-driven society: Challenging digital universalism in urban planning decision-making

The article examines the impact of the virtual public sphere on how urban spaces are experienced and conceived in our data-driven society. It places particular emphasis on urban scale digital twins, which are virtual replicas of cities that are used to simulate environments and develop scenarios in response to policy problems. The article also investigates the shift from the technical to the socio-technical perspective within the field of smart cities. Despite the aspirations of urban scale digital twins to enhance the participation of citizens in the decision-making processes relayed to urban planning strategies, the fact that they are based on a limited set of variables and processes makes them problematic. The article aims to shed light on the tension between the real and the ideal at stake during this process of abstracting sets of variables and processes in the case of urban scale digital twins.

A study on the Delta-Bullington irregular terrain radiofrequency propagation model : assessing model suitability for use in decision support tools

Modeling the propagation of radiofrequency signals over irregular terrain is both challenging and critically important in numerous Army applications. One application of particular importance is the performance and radio connectivity of sensors deployed in scenarios where the terrain and the environment significantly impact signal propagation. This report investigates both the performance of and the algorithms and assumptions underlying the Delta-Bullington irregular terrain radiofrequency propagation model discussed in International Telecommunications Union Recommendation P.526-15. The aim is to determine its suitability for use within sensor-planning decision support tools. After reviewing free-space, spherical earth diffraction, and terrain obstacle diffraction losses, the report dis-cusses several important tests of the model, including reciprocity and geographic continuity of propagation loss over large areas of rugged terrain. Overall, the Delta-Bullington model performed well, providing reasonably rapid and geographically continuous propagation loss estimates with computational demands appropriate for operational use.

Robust design of complex socio-technical systems against seasonal effects: a network motif-based approach

Seasonal effects can significantly impact the robustness of socio-technical systems (STS) to demand fluctuations. There is an increasing need to develop novel design approaches that can support capacity planning decisions for enhancing the robustness of STS against seasonal effects. This paper proposes a new network motif-based approach to supporting capacity planning in STS for an improved seasonal robustness. Network motifs are underlying nonrandom subgraphs within a complex network. In this approach, we introduce three motif-based metrics for system performance evaluation and capacity planning decision-making. The first one is the imbalance score of a motif (e.g., a local service network), the second one is the measurement of a motif’s seasonal robustness, and the third one is a capacity planning decision criterion. Based on these three metrics, we validate that the sensitivity of STS performance against seasonal effects is highly correlated with the imbalanced capacity between service nodes in an STS. Correspondingly, we formulate a design optimisation problem to improve the robustness of STS by rebalancing the resources at critical service nodes. To demonstrate the utility of the approach, a case study on Divvy bike-sharing system in Chicago is conducted. With a focus on the size-3 motifs (a subgraph consisting three docked stations), we find that there is a significant correlation between the difference of the number of docks among the stations in a motif and the return/rental performance of such a motif against seasonal changes. Guided by this finding, our design approach can successfully balance out the number of docks between those stations that have caused the most severe seasonal perturbations. The results also imply that the network motifs can be an effective local structural representation in support of STS robust design. Our approach can be generally applied in other STS where the system performances are significantly impacted by seasonal changes, for example, supply chain networks, transportation systems and power grids.

Co-Producing a Social Impact Assessment with Affected Communities: Evaluating the Social Sustainability of Redevelopment Schemes

This paper explores the role of social impact assessment (SIA) as a tool to evaluate the social sustainability of council estate redevelopment or regeneration. The paper first revises the evolution of the concept of SIA in recent years, arguing that it should be included as a core part of the planning approval process to enhance community-centred planning decision-making practices, as claimed by the Just Space network in London. To contribute to this argument, the paper explores how to co-produce an SIA with those communities that are potentially affected by the scheme. We use as a case study William Dunbar and William Saville houses, two housing blocks located in South Kilburn Estate, London Borough of Brent, which are planned to be demolished as part of a large estate redevelopment scheme. The paper uses a diversity of participatory action research methods to co-produce an SIA with residents from the two housing blocks. From the experience of co-producing an SIA with residents, the paper comes out with three sets of findings and contributions. Firstly, the paper provides findings on the impact that demolishing the homes and re-housing residents would have on residents. Secondly, from these findings, the paper contributes to the argument that SIA should be incorporated into the planning system, but they should be co-produced with residents and carefully applied rather than becoming another box-ticking exercise. Thirdly, the paper provides very relevant methodological contributions on how to co-produce the SIA with those potentially affected.

Ecological-and-economic aspects of city-planning

The purpose of this research is to consider ecological-and-aspects of the land use during arrangement and planning of the urban areas on the basis of the assessment of city-planning components of various districts of the city. The authors offer some measures for the improvement of nature protection activity in the structure of the urban area management. The factors, determining planning of the city structures, key indicators of information support for the adoption of the city-planning decision, the principles of engineering-and-ecological zoning were revealed in the articles. The authors offered to carry out management of the territory and granting the land plots step by step, for the purpose of their effective ecological-and-economic use. The provisions, offered by the authors in this article, can be applied for ecological-and-economic justification of projects of the use of city lands as well as for the development of methodical recommendations on the effective arrangement of the built-up territories.

Family Planning Decision-Making at Grass Roots Level: Case Studies in West Java, Indonesia

<p>This thesis examines the process of family planning decision-making with a view to understanding women's empowerment within the context of the Indonesian population policies and family planning programme. The objective of the family planning programme, established in 1970, is to create 'small, happy and prosperous families' through community participation. This goal has been strengthened by the passage of Law No. 10 of 1992 concerning "Population Development and the Development of Prosperous Families". From 2000, in line with the 1994 International Conference on Population and Development Programme of Action, women's empowerment has become one of the major concerns of the family planning programme as stipulated in its new vision and mission statements. Data for this thesis are provided by fieldwork conducted in two villages in West Java province, Indonesia, from December 2002 until May 2003. A qualitative research design, with a phenomenological approach, has shaped the conduct of this study. The case studies in the two villages revealed that the philosophy of 'small and prosperous family' has permeated down to the village. This idea has influenced the village couples' decisions regarding family size. Smaller families with better-educated children are believed to lead to increased family prosperity. Generally, decisions to do with family planning and childbearing are made by women because men regard them as women's business. The contraceptive preferences show that women bear the major responsibility in the use of family planning methods. Thus women in these villages were empowered, but only partially. The women's role in terms of decision-making still exists within the framework of the interests of their husbands. Nevertheless, women's empowerment in family planning, through access to information and contraceptive services, has emerged from the case studies as a key factor that has enabled village women to make informed choices to control their family size. Women's control of fertility has been a major contributor to the success in reducing fertility and increasing family prosperity.</p>

Family Planning Decision-Making at Grass Roots Level: Case Studies in West Java, Indonesia

<p>This thesis examines the process of family planning decision-making with a view to understanding women's empowerment within the context of the Indonesian population policies and family planning programme. The objective of the family planning programme, established in 1970, is to create 'small, happy and prosperous families' through community participation. This goal has been strengthened by the passage of Law No. 10 of 1992 concerning "Population Development and the Development of Prosperous Families". From 2000, in line with the 1994 International Conference on Population and Development Programme of Action, women's empowerment has become one of the major concerns of the family planning programme as stipulated in its new vision and mission statements. Data for this thesis are provided by fieldwork conducted in two villages in West Java province, Indonesia, from December 2002 until May 2003. A qualitative research design, with a phenomenological approach, has shaped the conduct of this study. The case studies in the two villages revealed that the philosophy of 'small and prosperous family' has permeated down to the village. This idea has influenced the village couples' decisions regarding family size. Smaller families with better-educated children are believed to lead to increased family prosperity. Generally, decisions to do with family planning and childbearing are made by women because men regard them as women's business. The contraceptive preferences show that women bear the major responsibility in the use of family planning methods. Thus women in these villages were empowered, but only partially. The women's role in terms of decision-making still exists within the framework of the interests of their husbands. Nevertheless, women's empowerment in family planning, through access to information and contraceptive services, has emerged from the case studies as a key factor that has enabled village women to make informed choices to control their family size. Women's control of fertility has been a major contributor to the success in reducing fertility and increasing family prosperity.</p>

The Crossing as a New Approach for the Urban Transformation of Traditional Cities Towards the Sustainability

The topic of urban transformations has attracted the attention of researchers as it is one of the basic issues through which cities can be transformed towards sustainability. A specific level of transformation levels according to a philosophical concept known as a crossing. This article has relied on a specific methodology that aims to find a new approach for urban transformation based on the crossing concept. This concept derives from philosophical entrances based on the concepts of (being, process, becoming, and integration). Four levels have been for the crossing are (normal, ascending, leap, and descending). Each of these levels includes specific characteristics that distinguish it. The results showed that there is no descending crossing in the study area and that four indicators that have achieved leap crossing are: (coverage ratio, compactness, Effectiveness of the pedestrian and bicycle movement, and proximity. As for ascending crossing achieved in three indicators are: mix land use, blocks' length, and connectivity, as for normal crossing achieved in three indicators are: diversity of building heights, population density, and housing density. These results help in making the planning decision to transform traditional Karbala city into a sustainable city, by giving priority in development to the indicators that have achieved ascending crossing because it takes less time and effort to reach the leap crossing in comparison with indicators that have achieved normal crossing.