Public Affairs, Public Policy and Public Administration Commons^™

A Two-Stage Parallel Network Dea Model For Analyzing The Operational Capability Of Container Terminals, Jaehun Park, Byung Kwon Lee, Joyce M. W. Low

Research Collection Lee Kong Chian School Of Business

This study proposes a systematical approach to evaluate the operational capability of container terminals and discusses the effect of resource usages on operational performances. Two inter-dependent processes (i.e. the loading-discharging (L&D) and the delivery-receiving (D&R) operational processes) with shared/non-shared resources and common/separate productions are examined and characterized as a two-stage parallel network. An evaluation model is developed upon the principles of data envelopment analysis (DEA) to assess the operational capability of the terminals. Using the real-world dataset of 9 container terminals at Port of Busan, comparative performance results are obtained for 5 years spanning across 2014–2018. The proposed model demonstrates …

Staying Connected: The Importance Of Social Integration On The Well-Being Of Older Adults, Paulin T. Straughan, Vincent Chua, Stephen Hoskins, Frosch Quek

ROSA Research Briefs

It has been about a year since COVID-19 first emerged and reshaped the daily lives of people around the globe, including Singaporeans. Since moving past the circuit breaker in June, Singapore has gradually re-opened and relaxed its restrictions in different phases. As Singapore prepares for Phase 3- the final and least restrictive phase, it is important to examine how Singaporeans have coped and responded with the circuit breaker (7 April 2020) and its gradual easing of restriction in Phase 1 (2nd June 2020) and Phase 2 (19 June 2020), and identify the groups which have fallen through the gaps in …

Enhancing Methodological Reporting In Public Administration: The Functional Equivalents Framework, Valentina Mele, Marc Esteve, Seulki Lee, Germa Bel, Giulia Cappellaro, Nicolai Petrovsky, Sonia M. Ospina

Research Collection School of Social Sciences

Public administration scholarship reflects a multidisciplinary field in which many theoretical perspectives coexist. However, one of the dark sides of such theoretical pluralism is methodological fragmentation. It may be hard to assess the research quality and to engage with the findings from studies employing different methodologies, thus limiting meaningful conversations. Moreover, the constant race across social sciences to make methodologies more sophisticated may exacerbate the separation between academic and practitioner audiences. To counterbalance these two trends, this article aims at increasing methodological intelligibility in our field. It does so starting from the idea that each methodology entails choices in the …

A Secure Flexible And Tampering-Resistant Data Sharing System For Vehicular Social Networks, Jianfei Sun, Hu Xiong, Shufan Zhang, Ximeng Liu, Jiaming Yuan, Robert H. Deng

Research Collection School Of Computing and Information Systems

Vehicular social networks (VSNs) have emerged as the promising paradigm of vehicular networks that can improve traffic safety, relieve traffic congestion and even provide comprehensive social services by sharing vehicular sensory data. To selectively share the sensory data with other vehicles in the vicinity and reduce the local storage burden of vehicles, the vehicular sensory data are usually outsourced to vehicle cloud server for sharing and searching. However, existing data sharing systems for VSNs can neither provide secure selective one-to-many data sharing and verifiable data retrieval over encrypted data nor ensure that the integrity of retrieved data. In this paper, …

New Cultures Of Care? The Spatio-Temporal Modalities Of Home-Based Smart Eldercare Technologies In Singapore, Orlando Woods, Lily Kong

Research Collection School of Social Sciences

Increasingly, technology-enabled strategies of eldercare are being developed and deployed to minimize the socio-economic costs of ageing. As part of this shift, home-based ‘smart’ technologies have been embraced as a way of enabling ageing-in-place. Smart technologies flatten space and time, and can increase the reach of caregivers. In this sense, they foreground the emergence of new cultures of care. Through an empirical focus on the triallists of smart eldercare technologies living in a public housing estate in Singapore, this paper considers the ways in which new cultures of care are being formed and negotiated in response to the encroachment of …

Behavioural Insights Teams (Bits) And Policy Change: An Exploration Of Impact, Location, And Temporality Of Policy Advice, Ishani Mukherjee, Sarah Giest

Research Collection School of Social Sciences

Behavioural Insights Teams (BITs) have gained prominence in government as policy advisors and are increasingly linked to the way policy instruments are designed. Despite the rise of BITs as unique knowledge brokers mediating the use of behavioral insights for policymaking, they remain underexplored in the growing literature on policy advice and advisory systems. The article emphasizes that the visible impact that BITs have on the content of policy instruments, the level of political support they garner and their structural diversity in different political departments, all set them apart from typical policy brokers in policy advisory systems connecting the science-policy divide.

The Future Of Policy Tools: Promises And Pitfalls, Michael Howlett, Ishani Mukherjee, Sarah Giest

Research Collection School of Social Sciences

The study of policy tools has been undertaken for several decades. It has isolated and examined many different types of tools utilized by governments over the course of history and examined in detail how they are arranged into policy mixes or portfolios of tools. Recent developments in society and technology, however, have brought to the fore the possibility of using new or previously little-used tools such as platforms, co-production, nudges, as well as data-driven techniques, such as big data and artificial intelligence. These are added to the toolbox governments have at their disposal when designing policy responses to both new …

Online Traffic Signal Control Through Sample-Based Constrained Optimization, Srishti Dhamija, Alolika Gon, Pradeep Varakantham, William Yeoh

Research Collection School Of Computing and Information Systems

Traffic congestion reduces productivity of individuals by increasing time spent in traffic and also increases pollution. To reduce traffic congestion by better handling dynamic traffic patterns, recent work has focused on online traffic signal control. Typically, the objective in traffic signal control is to minimize expected delay over all vehicles given the uncertainty associated with the vehicle turn movements at intersections. In order to ensure responsiveness in decision making, a typical approach is to compute a schedule that minimizes the delay for the expected scenario of vehicle movements instead of minimizing expected delay over the feasible vehicle movement scenarios. Such …

The South, The West, And The Meanings Of Humanitarian Intervention In History, Patrick Quinton-Brown

Research Collection School of Social Sciences

As it has been written, the history of humanitarian intervention is all too Whiggish and all too white. By conceptualising humanitarian intervention in the way that they do, orthodox histories should be seen as entangled in debates about the origins of human rights but also, perhaps more crucially, debates about the various formations and reinventions of human rights. Alternative codifications of rights reveal the historical possibility of a Southern practice of what we would almost certainly call ‘humanitarian intervention’. The record of a radical Third World practice to save strangers from the atrocities of colonialism and extreme racism is also …

From Third World To First World: Law And Policy In Singapore’S Urban Transformation And Integration, Tan K. B. Eugene

Research Collection Yong Pung How School Of Law

The physical transformation of a colonial backwater city, Singapore, in one generation has been described as a feat of urban planning, renewal, and development. Less studied is the political will of the government to create a thriving city fit for purpose. Even less studied is the role of law that provides the powerful levers for the rapid and deep-seated changes to the urban landscape in Singapore. In this regard, the mindset shift that accompanied the massive urban transformation has facilitated a national psyche that embraces the material dimension of progress, for which urban renewal is not just a mere indicator …

Deep Reinforcement Learning Approach To Solve Dynamic Vehicle Routing Problem With Stochastic Customers, Waldy Joe, Hoong Chuin Lau

Research Collection School Of Computing and Information Systems

In real-world urban logistics operations, changes to the routes and tasks occur in response to dynamic events. To ensure customers’ demands are met, planners need to make these changes quickly (sometimes instantaneously). This paper proposes the formulation of a dynamic vehicle routing problem with time windows and both known and stochastic customers as a route-based Markov Decision Process. We propose a solution approach that combines Deep Reinforcement Learning (specifically neural networks-based TemporalDifference learning with experience replay) to approximate the value function and a routing heuristic based on Simulated Annealing, called DRLSA. Our approach enables optimized re-routing decision to be generated …

Towards More Inclusive Smart Cities: Reconciling The Divergent Logics Of Data And Discourse At The Margins, Jane Yeonjae Lee, Orlando Woods, Lily Kong

Research Collection School of Social Sciences

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. …

Bus Frequency Optimization: When Waiting Time Matters In User Satisfaction, Songsong Mo, Zhifeng Bao, Baihua Zheng, Zhiyong Peng

Research Collection School Of Computing and Information Systems

Reorganizing bus frequency to cater for the actual travel demand can save the cost of the public transport system significantly. Many, if not all, existing studies formulate this as a bus frequency optimization problem which tries to minimize passengers’ average waiting time. However, many investigations have confirmed that the user satisfaction drops faster as the waiting time increases. Consequently, this paper studies the bus frequency optimization problem considering the user satisfaction. Specifically, for the first time to our best knowledge, we study how to schedule the buses such that the total number of passengers who could receive their bus services …

Zone Path Construction (Zac) Based Approaches For Effective Real-Time Ridesharing, Meghna Lowalekar, Pradeep Varakantham, Patrick Jaillet

Research Collection School Of Computing and Information Systems

Real-time ridesharing systems such as UberPool, Lyft Line, GrabShare have become hugely popular as they reduce the costs for customers, improve per trip revenue for drivers and reduce traffic on the roads by grouping customers with similar itineraries. The key challenge in these systems is to group the "right" requests to travel together in the "right" available vehicles in real-time, so that the objective (e.g., requests served, revenue or delay) is optimized. This challenge has been addressed in existing work by: (i) generating as many relevant feasible (with respect to the available delay for customers) combinations of requests as possible …

Pricing And Equilibrium In On-Demand Ride-Pooling Markets, Jintao Ke, Hai Yang, Xinwei Li, Hai Wang, Jieping Ye

Research Collection School Of Computing and Information Systems

With the recent rapid growth of technology-enabled mobility services, ride-sourcing platforms, such as Uber and DiDi, have launched commercial on-demand ride-pooling programs that allow drivers to serve more than one passenger request in each ride. Without requiring the prearrangement of trip schedules, these programs match on-demand passenger requests with vehicles that have vacant seats. Ride-pooling programs are expected to offer benefits for both individual passengers in the form of cost savings and for society in the form of traffic alleviation and emission reduction. In addition to some exogenous variables and environments for ride-sourcing market, such as city size and population …

A Genetic Algorithm To Minimise Number Of Vehicles In An Electric Vehicle Routing Problem, Kiian Leong Bertran Queck, Hoong Chuin Lau

Research Collection School Of Computing and Information Systems

Electric Vehicles (EVs) and charging infrastructure are starting to become commonplace in major cities around the world. For logistics providers to adopt an EV fleet, there are many factors up for consideration, such as route planning for EVs with limited travel range as well as long-term planning of fleet size. In this paper, we present a genetic algorithm to perform route planning that minimises the number of vehicles required. Specifically, we discuss the challenges on the violations of constraints in the EV routing problem (EVRP) arising from applying genetic algorithm operators. To overcome the challenges, techniques specific to addressing the …

Laden With Great Expectations: (Re)Mapping The Arts Housing Policy As Urban Cultural Policy In Singapore, Su Fern Hoe

Research Collection School of Social Sciences

The arts and artists need space to thrive. However, as much of the land in Singapore is state-owned, the finiteness of space – literally and figuratively – remains a key challenge. Yet there is a rich variety of arts infrastructure in Singapore today, from exhibition spaces to performing arts venues and state-subsidised artist studios. This infrastructure comes at a cost - these arts spaces are positioned as policy interventions capable of achieving a broad confluence of cultural, urban, economic and social outcomes for Singapore.

This article aims to provide an understanding of how arts spaces in Singapore has been framed …

Learning From The Past: Distributed Cognition And Crisis Management Capabilities For Tackling Covid-19, Seulki Lee, Jungwon Yeo, Chongmin Na

Research Collection School of Social Sciences

The outbreak of coronavirus disease 2019 (COVID-19) has presented an unprecedented public health crisis across the globe. Governments have developed different approaches to tackle the complex and intractable challenge, showing variations in their effectiveness and results. South Korea has achieved exceptional performance thus far: It has flattened the curve of new infections and brought the outbreak under control without imposing forceful measures such as lockdowns and travel ban. This commentary addresses the South Korean government’s response to COVID-19 and highlights distributed cognition and crisis management capabilities as critical factors. The authors discuss how the South Korean government has cultivated distributed …

How Do Intercrisis Learning Outcomes Affect Intracrisis Learning? “Learning In The Making” In The Case Of South Korea’S Covid-19 Response, Chongmin Na, Seulki Lee, Jungwon Yeo

Research Collection School of Social Sciences

This study explores the processes of intercrisis and intracrisis learning and the link between them, drawing on South Korea’s responses to the COVID-19 pandemic as an example. The crisis management literature suggests that intracrisis learning is less likely to occur than intercrisis learning due to inherent barriers that hinder learning and adaptation in the heat of crisis. Based on the conceptual framework of problem-oriented governance and crisis learning, we unpack how prominent outcomes of intercrisis learning facilitate intracrisis learning during the acute phase of an emerging crisis. We postulate that learning after 2015 MERS crisis developed the core capabilities for …

Life, Liberty Or The Pursuit Of Happiness In A Post-Covid 19 Era, Aurobindo Ghosh, Amit Haldar, Kalyan Bhaumik

Research Collection Lee Kong Chian School Of Business

A multi-generational pandemic has afflicted economies and convulsed worldwide health systems putting policymakers on prongs of an unthinkable trinity of choice: life, liberty or the pursuit of happiness? These inalienable rights guaranteed by the US Declaration of Independence seem farcical with three of largest four democracies in the world accounting for the highest infections. In this opinion piece, we re-evaluate the clichéd debate between life and livelihood. Second, we investigate the implementation hurdles faced by the frontline medical policymakers expediting testing regimes and vaccine development to avert an unfolding catastrophe. Medical professional are opting for mitigation strategies like isolating infections …

News Media Influence On Public Trust In Bike-Sharing Operators In Singapore, Leonard Wong, Lyon Tan, Rachel Wong, Su Lin Yeo

Research Collection Lee Kong Chian School Of Business

Purpose: The overnight introduction of tens of thousands of dockless bike-share bicycles in Singapore with its indiscriminate parking drew the attention of the media, which generated extensive news reports on the activities carried out by bike-sharing operators. Given the meteoric rise and fall of the industry, this study examines the influence of agenda-setting of news reporting on the public’s perception of the industry and the impact on the firms’ corporate reputation. Design/methodology/approach: Utilizing the Reputation Quotient Index, the study content analyzed 147 textual data of online reports which were crawled over two years between 2017 and 2018 from six mainstream …

Incentives For Information Provision: Energy Efficiency In The Spanish Rental Market, Xueying Bian, Natalia Fabra

Research Collection Lee Kong Chian School Of Business

In this paper we build a search model with asymmetric information regarding houses' energy efficiency. The objective is to shed light on the house owners' incentives to disclose energy certificates (ECs) in the rental market. Such incentives depend not only on the rent premium for more efficient houses - as previously documented - but also on the implicit rent penalty for unlabeled houses. Interestingly, we show that such a penalty is higher the greater the disclosure rate of ECs in the local market. This suggests that the enforcement of the EC regulation should be more stringent during the early phases, …

Adaptive Large Neighborhood Search For Vehicle Routing Problem With Cross-Docking, Aldy Gunawan, Audrey Tedja Widjaja, Pieter Vansteenwegen, Vincent F. Yu

Research Collection School Of Computing and Information Systems

Cross-docking is considered as a method to manage and control the inventory flow, which is essential in the context of supply chain management. This paper studies the integration of the vehicle routing problem with cross-docking, namely VRPCD which has been extensively studied due to its ability to reducethe overall costs occurring in a supply chain network. Given a fleet of homogeneous vehicles for delivering a single type of product from suppliers to customers through a cross-dock facility, the objective of VRPCD is to determine the number of vehicles used and the corresponding vehicle routes, such that the vehicleoperational and transportation …

Legal Constraint In Emergencies: Reflections On Carl Schmitt, The Covid-19 Pandemic And Singapore | Symposium On Covid-19 & Public Law, Wei Yao, Kenny Chng

Research Collection Yong Pung How School Of Law

The controversial legal theorist Carl Schmitt’s challenge to the possibility of meaningful legal constraint on executive power in emergencies could not be more relevant in a world struggling to deal with Covid-19. Scrambling against time, governments around the world have declared states of emergency and exercised a swathe of broad executive powers in an effort to manage this highly infectious disease. In times like these, if Schmitt is indeed right that emergencies cannot be governed by law, we are on the cusp of (or perhaps have already entered) a post-law world – where the business of government is characterised by …

Attitudes, Behaviours, And The Well-Being Of Older Singaporeans In The Time Of Covid-19: Perspectives From The Singapore Life Panel, Paulin T. Straughan, William Tov, Seonghoon Kim, Terence Cheng, Stephen Hoskins, Micah Tan

ROSA Research Briefs

COVID-19 has affected all Singaporeans, regardless of age and socioeconomic status (SES). Many measures have been implemented by the government to control the spread of this disease, including restrictions on social gatherings, restrictions on overseas travel, and making it compulsory to wear a mask. Measures have also included a partial lockdown – known as the ‘circuit breaker’ – which began in April 2020. This forced Singaporeans to quickly adapt to a new normal with some doing better than others. This research brief provides an overview of how COVID-19 and its related measures have affected seniors in Singapore using data from …

The Prediction Of Delay Time At Intersection And Route Planning For Autonomous Vehicles, Genwang Gou, Yongxin Zhao, Jiawei Liang, Ling Shi

Research Collection School Of Computing and Information Systems

Intelligent Intersections (roundabout and crossroads) management is considered as one of the challenges to significantly improve urban traffic efficiency. Recent researches in artificial intelligence suggest that autonomous vehicles have the possibility of forming intelligent intersection management, and likely to occupy the leading role in future urban traffic. If route planning method can be used for route decision of autonomous vehicle, the urban traffic efficiency can be further improved. In this paper, we propose an Intelligent Intersection Control Protocol (IICP) for controlling autonomous vehicles cross intersection, and recommend route for autonomous vehicles to reduce travel time and improve urban traffic efficiency. …

Fomc Playbook: The Only New Game In Town?, Thomas Lam

Sim Kee Boon Institute for Financial Economics

In light of the Covid-19 pandemic, the Federal Open Market Committee (FOMC), while taking more aggressive actions, seems to have stuck more or less to the standard playbook of responding to “unusual and exigent circumstances”. This essentially calls for slashing conventional policy rates to their effective lower bound, accompanied by forward guidance, embarking on asset purchases, rolling out emergency liquidity facilities and experimenting with lending programmes. But policymakers, with the required US Treasury backstop, have also introduced more creative programmes to encourage credit extension and reached into different market segments.

Singapore's Climate Action: It Is Time To Be More Ambitious, Winston T. L. Chow

Research Collection School of Social Sciences

Some nations have declared net-zero carbon emission targets by 2050. Businesses and the people here know Singapore can punch above its weight. The government should lend its support.

Goods Consumed During Transit In Split Delivery Vehicle Routing Problems: Modeling And Solution, Wenzhe Yang, Di Wang, Wei Pang, Ah-Hwee Tan, You Zhou

Research Collection School Of Computing and Information Systems

This article presents the modeling and solution of an extended type of split delivery vehicle routing problem (SDVRP). In SDVRP, the demands of customers need to be met by efficiently routing a given number of capacitated vehicles, wherein each customer may be served multiple times by more than one vehicle. Furthermore, in many real-world scenarios, consumption of vehicles en route is the same as the goods being delivered to customers, such as food, water and fuel in rescue or replenishment missions in harsh environments. Moreover, the consumption may also be in virtual forms, such as time spent in constrained tasks. …

The Indian Railways: On Track For Transformation, Philip Charles Zerrillo

Asian Management Insights

Manoeuvring infrastructure and digitisation challenges on a massive track network that runs nearly 70,000 route kilometres.