Publications

In this article, we survey a growing body of literature within geography and other intersecting fields that trains attention on what inclusive smart cities are, or what they could be. In doing so, we build on debates around smart citizens, smart public participation, and grassroots and bottom-up smart cities that are concerned with making smart cities more inclusive. The growing critical scholarship on such dis- courses, however, alerts us to the knowledge politics that are involved in, and the urban inequalities that are deeply rooted within, the urban. Technological interventions con- tribute to these politics and inequalities in various ways. Accordingly, we discuss limitations of the current discourses around inclusive smart cities and suggest a need for a nuanced definition of ‘inclusiveness’. We also discuss the necessity to further engage with critical data studies in order to ‘know’ what we are critiquing.

Over the past decade, much has been written about the potential of smart urbanism to bring about various and lasting forms of betterment. The embedding of digital technologies within urban infrastructures has been well documented, and the efficiencies of smart models of urban governance and management have been lauded. More recently, however, the discourse has been labelled ‘hegemonic’, and accused of developing a view of smart technology that is blinkered by its failure to critique its socio-political effects. By focusing on the case of Singapore’s ‘Smart Nation’ initiative, this paper embraces the paradoxes at the heart of smart urbanism and, in doing so, interrogates the tension between ideology and praxis, efficiency and control, access and choice, and smart governance and smart citizenship. It also demonstrates how such tensions are (re)produced through ‘fourthspace’ – the digitally enabled spaces of urbanism that are co-created, and that contribute to an expansion and diffusion of social and political responsibility. It ends by suggesting how such spaces have the potential to radically transform not just the urban environment, but also the role of government and citizens in designing urban futures.

Changing frequencies and intensities of extreme weather events directly affect settlement vulnerability; when combined with rapid urbanization, these factors also influence urban resilience to climate-related hazards. This article documents how urban resilience can generally be maximized, before examining how it is impacted by extreme hydro-climatic events (i.e. droughts and floods), with a specific case examination for Singapore. In particular, analysis of Singapore’s climate from 1950 to 2015 indicates (1) a warmer environment, and (2) recent periods of more intense surface dryness. Lastly, this article suggests how specific climate information regarding extreme event attribution can aid municipal stakeholders involved in urban resilience policy.

We investigated flooding patterns in the urbanised city-state of Singapore through a multimethod approach combining station precipitation data with archival newspaper and governmental records; changes in flash floods frequencies or reported impacts of floods towards Singapore society were documented. We subsequently discussed potential flooding impacts in the context of urban vulnerability, based on future urbanisation and forecasted precipitation projections for Singapore. We find that, despite effective flood management, (i) significant increases in reported flash flood frequency occurred in contemporary (post-2000) relative to preceding (1984–1999) periods, (ii) these flash floods coincide with more localised, “patchy” storm events, (iii) storms in recent years are also more intense and frequent, and (iv) floods result in low human casualties but have high economic costs via insurance damage claims. We assess that Singapore presently has low vulnerability to floods vis-a-vis other regional cities largely due to ` holistic flood management via consistent and successful infrastructural development, widespread flood monitoring, and effective advisory platforms. We conclude, however, that future vulnerabilities may increase from stresses arising from physical exposure to climate change and from demographic sensitivity via rapid population growth. Anticipating these changes is potentially useful in maintaining the high resilience of Singapore towards this hydrometeorological hazard.

Urban greenery is a favoured approach applied towards reducing urban warmth and climate discomfort, but ascertaining its measured and perceived effectiveness in tropical climates is relatively understudied. To this end, we investigated microclimate differences within an urban park (the Singapore Botanic Gardens) to assess if variations in plot-scale land cover affect both objective (measured) and subjective (surveyed) microclimate data. Over two monsoonal seasons, we obtained data from four distinct sites—a tropical rainforest stand, a palm tree valley, a water-body feature, and the park visitors’ centre. Measured climate data (e.g. air temperature, vapour pressure, wind velocity and globe temperatures) were used to derive mean radiant temperature Tmrt and three thermal comfort indices (e.g. temperaturehumidity index THI, physiological equivalent temperature PET, and wet-bulb globe temperature WBGT). Concurrent to these measurements, we also surveyed park users (n = 1573) for perceived microclimate sensations and preferences in thermal, humidity, wind and sun exposure, as well as their overall assessment of climate comfort/discomfort. The results indicate significant differences in both measured and perceived microclimates over different sites and seasons, with (i) selected heat stress thresholds based on thermal comfort indices exceeded at several sites, and (ii) visitors perceived generally hot, humid and low-wind conditions throughout. Variations in respondent acclimatisation to tropical climates are observed between correlations of WBGT and some sensation votes, with apparently stronger correlations with more acclimated respondents. While humidity was voted as the most uncomfortable climate variable across all sites, a large majority of respondents felt comfortable climate conditions throughout. Present results confirm that vegetation canopy characteristics affecting wind and sun exposure appear to be important factors in outdoor thermal comfort. Lastly, we suggest that future tropical outdoor thermal comfort studies consider the critical aspects of site humidity and wind to discern comfort/discomfort levels.