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The world was facing significant aging challenges. Aging in place has long been advocated which reflected the preference of older people to stay in their own home as long as possible. A huge amount of older people resided in private buildings that consist of both indoor settings (i.e. individual unit flats) and outdoor settings (i.e. common areas like lobby and corridor). The effect of indoor environment on the quality of life of the older people has been investigated, while this paper aims to examine the different effect of common areas environment for the older people.

A questionnaire survey was administered among over 300 older people living in private buildings. Multiple statistical techniques, including reliability test, correlation coefficient and multiple regression models, were used to analyze the collected data to determine the interactions between facilities management of the common areas in private buildings and the environment domain of quality of life for older people.

The final results were concluded based on the congruence of all the statistical results, which covered the identification of facilities management factors in common areas of private buildings that could influence the environment domain of quality of life for older people, including overall environment, health-care accessibility, information acquisition and transportation aspects; the overall environment was positively predicted by space and security in common areas of private building; health-care accessibility was positively affected by space, barrier-free facilities and recreational facilities; the information acquisition was only positively predicted by security; transportation was positively predicted by distance and recreational facilities; and building services of common areas in private buildings had no effect on the environment domain of quality of life for older people.

Practical recommendations have been made to improve the facilities management of common areas in private buildings to ensure the quality of life for older people, including provision of walking assistance, motion or infrared controlled systems and so on. This study contributed to enhance current understanding of the interactions between the older people and their living environment.

Under Malaysian Law, the maintenance and management of common property have traditionally been viewed as insoluble challenges in the self-organisational efforts for high-rise low-cost housing developments. As the population increases, more shared resources become heavily exploited with few willing to contribute towards the sustainability of resources. Many researchers argued a better way would be to convert these shared resources into a private or state-managed entity. Hence, with that assumption, this paper aims to examine how better physical characteristics can result in greater collective action.

This research paper adopted a quantitative method approach to determine how the standard of physical characteristics influenced the quality of collective action in high-rise low-cost housing. The method included a questionnaire survey of 519 parcel holders chosen via stratified purposeful random sampling from four high-rise low-cost housing areas.

The paper found a positive correlation between the quality of physical characteristics and the collective action gained. The findings highlighted that the standard of workmanship of high-rise low-cost units (including the common properties), the crime rate in the neighbourhood and the condition of lift systems – when improved – were significant positive predictors of collective action.

Housing developers should pay attention to the quality of both low-cost units and related common properties, as this endeavour will assist greatly in future collective action management.

The study was justified in terms of its originality as few research studies adopted the social-ecological system framework that focused on the correlation between the quality of physical characteristics and the collective action of parcel holders.

The proposed use of unlatched, reverse swing flappy doors is becoming widespread in the design of residential common corridor smoke control systems. This article explores the conceptual arguments for and against the use of these systems.

This article relies on industry experience, with reference to relevant building design practices, standards and research literature, to categorise arguments. These are collated into four common areas of concern relating to compartmentation, reliability, depressurisation and modelling practices. A final comparison is made between different common corridor smoke control system types for these four areas.

The article highlights several concerns around the use of flappy door systems, including the enforced breaches in stair compartmentation, uncertainties around system reliability, the reliance on door closers as a single point of failure, the impact of day-to-day building use on the system performance and the false confidence that modelling assessments can provide in demonstrating adequacy. The article concludes in suggesting that alternative smoke control options be considered in place of flappy door systems.

Discussion on the use of flappy door smoke control systems has been ongoing within the fire engineering community for several years, but there is limited public literature available on the topic. By collating the common arguments relating to these systems into a single article, a better understanding of their benefits and pitfalls has been provided for consideration by building design and construction professionals.

Two main activities of the EC FP7 Risk of Energy Availability: Common Corridors for Europe Supply Security (REACCESS) project applied a systematic approach to collect the main characteristics of energy supply corridors starting from mining activities in exporting regions up to the import infrastructures and capacities of EU27+countries. The aim of the present paper is to summarise identified information on import potentials and the possible corridors for the EU27+energy supply of the future. This information is used as new starting point for the energy system modelling in the REACCESS project.

Detailed information on existing, planned or potential developments derived from literature reviews and expert surveys, as well as from our own calculations, was compiled in a consistent database. By using suitable geographic information system (GIS) tools, all the identified energy supply routes were represented graphically and analysed with reference to their spatial characteristics.

The information collected was used to generate a comprehensive database of resources, production capacities and import routes. Together with further detailed information on technological and economic parameters (not shown in this paper), this database provides new complete and consistent input for the modelling of import corridors and associated risks regarding the energy systems in Europe.

The originality of the paper is the synthesis of a huge volume of information provided in the literature and own additional calculations in a consistent way. The resulting database provides the framework for the integration of security of supply aspects into energy scenario modelling, which is an important modelling challenge and one of the main tasks of REACCESS. The study considers oil, gas, coal and nuclear fuel as well as renewable imports of solar electricity and biomass, and also hydrogen as a possible new energy carrier.

Greece is a net importer of oil and gas and is among the most vulnerable countries of the European Union (EU) on energy supply disruptions. Furthermore, is considered a “crossroad” of existing and forthcoming infrastructure for importing energy to the EU. The purpose of this paper is the presentation of the web tool that implements the developed methodology for the quantification of socio‐economic risks of oil and gas corridors. The tool is applied to the main present and future oil and gas corridors to Greece, and the related outcomes are discussed.

A structured and coherent review on the future and present oil and natural gas (NG) corridors to Greece was elaborated, based on desk analysis and collection of the related data from national and international sources. Factor analysis was employed for the quantification of socio‐economic risks of each energy corridor. Particular emphasis was laid on the tool's design, so as to be user‐friendly, combining intuitive menus and navigation throughout the steps of the system.

The calculation of socio‐economic risks of the main oil and gas corridors to Greece provides operative and measurable concepts for supporting energy‐modelling processes. Indeed, this paper provides useful insights on the factors affecting the smooth energy supply and the reliability of oil and gas supply options to the Greek energy system. Moreover, the presented web tool can be used as a reference point for the researcher working on energy supply risks quantification.

The introduction of the energy corridors perspective in the valuation of supply security is of significant importance, taking into account the constantly increasing energy dependence of EU countries. To the best of the authors' knowledge, a structured and coherent review of the future and present oil and NG corridors to Greece is not present in the international literature. In addition to this, the development of the web tool is a clear contribution towards the quantification of the economic and socio‐political risk analysis and a step forward of the existing studies.

The European Union (EU) energy supply environment is changing significantly and in a dynamic way, establishing the issue of safe energy imports as main priority. Greece relies heavily on energy imports. Furthermore, Greece aims to be elevated into an energy cross road for the energy supply to the EU. In this respect, the aim of this paper is the investigation of the suitability of graph theory concepts on energy supply networks and its application to represent energy corridors to Greece.

Supporting frameworks to represent and assess the vulnerability of the corridors satisfying the Greek demand in oil and gas are considered a crucial issue and are presented in this paper, based on the graph theory approach. In addition, a pilot application of the shortest path algorithm and the maximum flow at minimum risk algorithm for the oil and gas corridors to Greece is presented and discussed.

This paper introduces the application of graph theory to energy policy analysis. Indeed, the pilot application in oil and gas supply corridors to Greece, although quite simplified, has indicated the applicability of graph theory concepts in such problems and is considered a step forward of the existing studies, supporting the design efforts towards the development of a more reliable energy supply system.

To the best of the authors' knowledge, graph theory's application to energy corridors is not available in the international literature. In this respect, the added value of the paper is the provision of a sufficient decision support framework for the representation and assessment of the energy corridors' risk of energy availability, through the application of graph theory.

Though daycare centres are built to facilitate children's social and physical growth, divergent stakeholder perceptions yield conflicts while managing risks for each space due to the minimal guidelines in the Republic of Korea. Due to the unclearly defined knowledge and experience gap between representative stakeholders, teachers have difficulties in operating it with high satisfaction. This study therefore was conducted to systematically identify which parts of performance should be increased to preferentially increase end-user satisfaction in limited resources.

This research conducted quantitative analysis gradually. Importance–performance analysis (IPA) grasped the perceptions of construction practitioners and end-users after identifying space composition and representative risks of daycare centres. Based on the factors influencing perception differences, principal component analysis and structural equation modelling (SEM) were conducted to determine which space improves the performance preferentially to increase overall end-user satisfaction.

As the utilisation of indoor spaces increases after COVID-19, improvement of indoor spaces except for indoor playroom is necessary, especially, advancement of the quality of teachers' rooms.

Outputs by reflecting the end-user experiences support to understand which spaces are managed from the limited resources.

Theoretical framework for daycare centre was established in Korea where guidelines were insufficient, and differences in perception of each risk of stakeholders were identified. Moreover, gradual statistical analysis was set to construct end-user-focused centres by extracting where the performance of space should be improved in prior.

The research activity presented in this paper has the objective of developing models for the evaluation of technological risk and loss of production due to failures, which are among the criterions that enable the choice of optimal scenarios for energy supply. This activity is based on the European Project “Risk of Energy Availability: Common Corridors for Europe Supply Security” (REACCESS), which aims to develop an analytical tool to analyse scenarios for future secure European Union (EU) energy supply.

The paper proposes an innovative approach, since nowadays a generalised analytic model for risk assessment in large‐scale energetic systems does not exist. In particular, the methodology adopted includes models to assess risk for people safety, risk for the environment and availability for corridors and the related infrastructures. As regards technological risk, accidents producing loss of lives in the population and environmental damage are taken into account; while for the loss of production primary attention is paid to technical failures and maintenance.

Since the analytic models developed perform a large‐scale assessment, they must be flexible and simplified to adapt to different situations and to be easily updated when different future scenarios are investigated. Details of the analysis depend on the precision of data collected and inserted in the models. The damage assessment is affected by deficiency and uncertainties related to territorial and statistical data. Nevertheless, the outcomes obtained for each energy commodity are reasonable and often comparable to literature data.

Based on this study output, technological risk can be considered, more systematically than in the past, in the selection of EU strategies for future energy supply. The corridors social cost is included in future strategies selection, in addition to purely economical and environmental evaluations.

This article is based on the REACCESS research project, sponsored by the European Commission, with the objectives of evaluating the technical, economic, and environmental aspects of present and future energy corridors between the European countries (EU27) and their main energy suppliers. GCC countries have an important role to play given their role in EU energy supply and in greenhouse gas emissions. The paper aims to discuss these issues.

A single energy model was built by hard‐linking the TIMES integrated assessment model (TIAM‐World), the Pan European TIMES model (PET), and the RECOR model (REaccess CORridors), including more than 1,000 possible energy corridors supplying the European countries. Another major methodology advance was to create a hybrid objective function, combining the usual cost objective and a metric representing the supply risk incurred by EU27. The risk component was constructed via a novel approach that aggregates the elemental risk parameters of each corridor using a Min‐Max function. Four contrasted scenarios were assessed, based on security and climate objectives.

Among the many results, it appears that a large reduction of the supply risk may be achieved at a very modest increase of the total energy system cost for EU27. Cross‐effects of climate mitigation and security objectives are also observed. Due to the diversification requirement, the contribution of GCC countries to EU energy imports increases under risk scenario. Sensitivity analyses show that the European energy system seems unable to reduce the market shares of fossil fuels import from MENA countries, including GCC countries, much below the reference case, proving the strong dependency of EU27 energy system from these countries. However, total fossil fuels imports, as well as total energy consumed, are decreased under the risk adverse scenarios.

Methodological developments, as described above, result in an advanced tool to assess how to increase the “energy system security”, by reducing the concentration of supply countries, diversifying import sources but also reducing the energy dependence at the end‐use side.