How can authorities support urban consolidation centres? A review of the accompanying measures

Freight transport affects urban welfare primarily through congestion and emissions. An urban consolidation centre is regarded as a solution that can reduce those negative impacts of freight vehicles on the city. However, previous experience has demonstrated the challenge that these centres face in being self-sustaining. Given their positive effects on the city, authorities have supported these logistics schemes with different types of accompanying measures. In order to bring to practitioners an overview of these measures, the paper presents the results of a literature review where the different measures are classified according to their financial support, their regulatory support and their indirect regulatory support.     

Conceptualizing mega-event flagships—A case study of China Pavilion of Expo 2010 Shanghai China

Mega-event flagship (MEF) is a dual instrument for staging a mega-event and catalyzing regional urban renewal. Despite its unfailing popularity and controversial nature, many initiators seem to equate MEF development with signature architecture, resulting in a persistent issue of underuse among MEFs in the post-event era. Although research findings indicate that the early stages hold the key to the future of MEFs, insufficient research on this crucial matter has been done to provide useful analyses as to how to achieve this. To rectify this, this paper presents a case study of China Pavilion (CP) as the most spotlighted MEF initiated by Expo 2010 Shanghai China. Through participant observation, archival records, and documentation, the case of CP was extensively explored to learn how the client organization has addressed the issues of form, function, and future positioning at the early stages. By linking the pre-Expo conceptualization with its post-Expo performance, the case brings a renewed attention to the early stages of MEF development. Although it is a single-case study, this research yields results that indicate the possibility of having beneficial spillover impact on broader-scale urban renewal by balancing an MEF’s dual mandate.     

How environmental policy stringency affects renewable energy investment? Implications for green investment horizons

Renewable energy has many benefits, but the most important is its ability to reduce our carbon emissions and help protect the environment. This study looks into the nonlinear effects of environmental policy stringency (EPS) on renewable energy investment in BRICS. To probe the short- and long-term connection, we exploited the nonlinear panel QARDL framework. According to the analysis's results, renewable energy investment rises at nearly all quantiles in response to both short- and long-run positive shocks in EPS. The long-run negative shocks in EPS reduce renewable energy investments at lower and medium quantiles only, whereas the short-term negative shocks in EPS significantly reduce renewable energy investment at most quantiles. At all quantiles, the short and long-run Wald test validates the dissimilar effect of EPS on renewable energy investment. Consequently, policymakers should distinguish between positive and negative shocks in the EPS when considering the effect of EPS on renewable energy investment.     

Do residents of Affordable Housing Communities in China suffer from relative accessibility deprivation? A case study of Nanjing

Affordable housing has emerged as a key issue in urban development in a wide range of countries. Themes in research on affordable housing development across the world are reviewed. Affordable Housing Communities for low income households have been built on a large scale in developing countries such as China during the last two decades, mainly in urban fringe areas. Evidence on the impact of the location on access of residents to services is rare. Studying Nanjing, this paper compares spatial access to services between Affordable Housing Communities and Other Housing Communities by measuring distances and imputing walking time between residential land parcels and facilities. Affordable Housing Communities have significantly poorer access than Other Housing Communities, because of poor neighbourhood provision of low order services and poor access to high order services. A household survey of Affordable Housing Communities and Other Housing Communities records the daily lives, degrees of satisfaction and community attachments of residents. Residents in affordable housing have low degrees of satisfaction, weak community attachments and desire to move. The findings emphasize that service provision should be planned to keep pace with Affordable housing construction, so that these communities become better places to live.     

How market competitive is America's public housing? The case of Baltimore

This study estimates what would happen to one local Housing Authority (HA)-the Housing Authority of Baltimore City (HABC), Maryland-if the public housing program were transformed to: eliminate certain key aspects of Federal government regulation, especially with respect to occupancy and rent rules; end Federal operating subsidies to HAs; provide current public housing residents with a portable housing certificate under the Section 8 Existing Housing program, permitting them to choose whether to use it in HA developments or in the private market; and require HAs to compete in the marketplace for residents and revenues. Martin Abravanel is a Senior Research Associate at the Urban Institute. Terrence Connell is Manager of the Statistical Analysis Team, Real Estate Assessment Center, U.S. Department of Housing and Urban Development. Deborah Devine is a Social Science Research Analyst in the Program Monitoring and Research Division, U.S. Department of Housing and Urban Development. Debra Gross is Director of Research, Council of Large Public Housing Authorities. Lester Rubin is a Social Science Research Analyst in the Program Monitoring and Research Division, U.S. Department of Housing and Urban Development.     

How does wage polarization affect productivity? The case of Spanish regions

The effect of wage polarization on total factor productivity (TFP) in the Spanish regions between 2004 and 2012 is analysed using dynamic panel estimates. The main finding of this research is that there seems to be some evidence that polarization can affect productivity negatively. Although the specification of the models seems to be correct, the time period studied is brief, so these results should be interpreted with caution.     

How to Implement Urban Design in China?

With the focus on urban design projects for key urban areas, this paper reviews the evolution and practice of urban design in the United States, and analyzes two different development paths of urban design in China. By comparing specific urban design projects, it expounds similarities and differences between detailed control planning and urban design, hence putting forward recommendations for urban design implementation in terms of statutory status, implementation rules, and team building. The paper intends to clarify the stratified relationship between urban and rural planning and urban design, so as to avoid needless repetition and overlap of design, thereby enhancing the healthy development of the urban design discipline in China.     

How does the community resilience of urban village response to the government-led redevelopment? A case study of Tangjialing village in Beijing

Building on the critical resilience literature, this study aims at analyzing how the community resilience (CR) of urban village (UV), which is challenged by multiple natural and socio-economic disturbances such as climate change, land occupation, and industrialization, responses to the government-led redevelopment (GLR) and its hidden mechanism. A conceptual framework incorporating social, economic, institutional/governmental, material domains and community capital was established with reference to the work of Cutter, Burton, and Emrich (2010), and was applied as the conceptual springboard to assess the resilience of Tangjialing village. The results suggested that the GLR in Tangjialing village was generally a successful practice for enhancing CR, which was tightly associated with the economic empowerment for local residents and formalization of informal economic activities and negatively affected by insufficient public engagement. Accordingly, policy implications about enhancing the resilience such as protecting the farmers' “private rights” as landowners, providing employment guidance and assistance and implementing cooperative planning were proposed.     

Spatial impact of urban expansion on surface water bodies—A case study of Wuhan,China

This study aims to raise the level of attention paid to surface water management issues in spatial planning and urban development processes. In the case of cities located in alluvial river plains, surface water bodies may occupy large areas but severe ecological and environmental consequences can arise if they are given insufficient weight in the planning and development processes. After discussing in general terms some of the connections between surface water bodies and urban land use we specifically examine the situation in Wuhan, one of the largest cities in China, which has many surface water bodies in its urban region. We measure and analyse land use changes between 1993 and 2004 to lakes and shallow water bodies and their riparian areas using data derived from detailed land use surveys of the city. Our results show that urban expansion has had a significant impact on Wuhan's surface water bodies and their riparian zones. The reduction, disappearance and pollution of surface water may contribute to the undervaluation of water bodies, thereby increasing the likelihood of further impacts taking place. An integrative and proactive land use planning and management system at regional strategic level and local action level is considered to be essential if surface water systems are to be conserved and improved. Increased recognition of their societal and ecological value should be reflected in more detailed attention to the spatial requirements of water bodies and riparian areas in urban planning policies.     

How can the concept of public value influence U.K. utility regulation?

There is much recent debate about extending the purposes of investor-owned firms to embrace the broader interests of a variety of stakeholders. Regulatory decisions in network industries already involve extensive use of centralised social cost-benefit analysis to capture some aspects of public value. A gap remains that might be filled by a decentralised process in which the regulator supports firms in expanding their purposes to include the pursuit of public value, identified by regulated firms in collaboration with consumers and citizens, and delivered in innovative and entrepreneurial ways. Based on a preliminary case study, we conclude that the approach has a role, but its success depends critically upon the companies fully embracing the revised purposes.     

What attracts foreign direct investment in China’s real estate development?

Foreign direct investment in real estate development (FDIRE) in China has been disproportionately agglomerated in the coastal region while has considerably diffused to some inland provinces along the Yangtze River. There is also significant spatial autocorrelation in the provincial distribution of FDIRE. Controlling for the spatial effects, statistical analysis indicates that FDIRE follows their international customers to China and pursues local profit opportunities as well. They avoid high financing cost and labor cost provinces but favor provinces with higher housing prices. FDIRE in China responds to the provincial differences in land and housing commercialization, and demands good regional governance, strong law enforcement and developed services. The findings imply that foreign investors in China’s real estate industry stress returns to capital while appreciate the conducive institutions when choosing locations.     

How green is my river? A new paradigm of eutrophication in rivers

Although the process of eutrophication is reasonably well understood in lakes, there is currently no conceptual understanding of how eutrophication develops in rivers. This issue is addressed here. A review of the main processes controlling the development of eutrophication in lakes has been carried out as a precursor to considering the effect in rivers. The importance of hydraulic flushing in controlling algal growth suggests that short-retention-time rivers will show different effects compared to long retention-time, impounded rivers. The latter are likely to operate like lakes, moving from macrophyte domination to phytoplankton domination whereas the former move to benthic and filamentous algal domination. Subsequently, a conceptual model of the development of eutrophic conditions in short-retention-time rivers is developed. Although there is general agreement in the literature that an increase in nutrients, particularly phosphorus, is a pre-requisite for the eutrophic conditions to develop, there is little evidence in short-retention-time rivers that the plant (macro and micro) biomass is limited by nutrients and a good case can be made that the interaction of hydraulic drag with light limitation is the main controlling factor. The light limitation is brought about by the development of epiphytic algal films on the macrophyte leaves. The implications of this conceptual model are discussed and a series of observable effects are predicted, which should result if the model is correct.     

Home sweet home? A case study of household dust contamination in Hong Kong

It is well recognized that many heavy metals have chronic effects on humans and as such, they are potential environmental health hazards, particularly to young children (see, for example, Body P, Inglis G, Dolan P, Mulcahy D. Environmental lead: a review. Crit Rev Environ Control 1991;20:299-310). Considerable attention has been paid to the study of metal pollution in city air, roadside dusts and soils. However, there is a lack of concern of the presence of trace metals in house dust in the populous city of Hong Kong, where it has traditionally been assumed that such pollutants are rapidly dispersed by ocean breezes. This research aims at quantifying the concentrations of heavy metals within the home environment in Hong Kong and their relationships with environmental factors. The results of this study seem to suggest that traffic and the age of the building and neighborhood are more important factors than the types of industry and socioeconomic status in affecting household dust contamination. The metal burdens in Kwung Tong, an old area with heavy traffic, are significantly higher than other districts. When a Kruskal-Wallis one-way analysis of variance was performed on the ranked metal concentrations in different housing districts, the Chi-square values are all significant at a probability level of < 0.001. This might be attributable to the fact that there is no highly contaminating industries (such as metal smelters, battery plants and petrochemicals) in Hong Kong. The dust metals may travel from the roads, through the windows and balconies, into the houses, as those homes that do not have their windows opened often had a lower level of contaminants in their house dust (median Cd= 3.6 microg/g; median Cu = 313.2 microg/g; median Pb = 144.6 microg/g; median Mn = 211.6 microg/g; and median Zn = 1,333.7 microg/g). Moreover, those occupants who sweep their floors or dust their furniture on daily bases, or use vacuum cleaners, had a lower level of metals inside their houses. Another finding of interest is that the color of the wall paint used in the house may be another factor influencing the contamination levels.     

Can web-based community engagement inform equitable planning outcomes? A case study of bikesharing

Web-based engagement is increasingly popular because of its perceived ability to increase access to the planning process with less effort than traditional methods. Currently, the utility of these approaches for meeting the needs of all members of a community is unclear. This research tests whether web-based engagement can forward equitable planning outcomes by examining proposed bikeshare station locations collected via a web-application; operationalizing equity as equal access to bikeshare station locations across all populations. Results indicate that solely relying upon online outreach would lead to an inequitable distribution of station locations. Suggested station locations are negatively-correlated with increased minority populations and positively-correlated with an increased mix of employment and housing. As such, we determine that while online outreach is a convenient and efficient means of collecting vast amounts of information, on its own it is not well-suited to planning applications in which access-equity is a primary concern.     

How to approach consumers’ nonmonetary evaluation of electricity supply security? The case of Germany from a multidisciplinary perspective

Consumers’ preferences regarding the security of supply (SoS) of electricity are generally assessed through economic estimates of the value of lost load. However, this monodisciplinary approach typically builds on homo oeconomicus assumptions and neglects consumers’ nonmonetary evaluations of SoS. This can result in short-sighted regulation, especially in the context of a transition like Germany’s Energiewende. This paper provides a consumer-centered perspective on SoS employing psychological and sociological research on energy. German consumers’ strong involvement in the Energiewende and their strong commitment to it make them a fascinating case. To determine the practical implications, we explore under what circumstances altered levels of SoS could be acceptable to consumers.     

Will specialization continue forever? A case study of interactions between industry specialization and diversity

This paper studies the interactions between industry specialization and diversity. Several studies have shown that competitive industries in a region grew faster, thus expanding their shares in overall employment. The implication is that a region will become more specialized in its competitive industries and the process will continue forever baring external intervention. Utilizing an econometric model on county-level employment growth in Virginia, this study confirms that competitive industries experience faster employment growth, reinforcing specialization. However, as specialization proceeds, it reduces economic diversity. That will hurt job creation, as economic diversity also stimulates employment growth. The interactions between specialization and diversity can lead to complex patterns of industry structural change. This study concludes that if a locality starts with low economic diversity, specialization will continue to deepen and the region may be trapped with limited economic diversity. However, when an economy starts with high diversity, specialization and diversity tend to offset each other, resulting a more consistent industry structure.