John D. Nelson's research while affiliated with The University of Sydney and other places

Publications (142)

Article
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Background The design, management and operation of transport systems is a complex activity and this has only been exacerbated since the onset of the COVID-19 pandemic. Concern has been raised over the likelihood of the public transport sector surviving in some locations given the significant drops in patronage; this is especially so in rural enviro...
Article
Speed plays a key role in road safety research. Recent studies have indicated an association between speed limits and driving behaviour. However, less attention has been paid to the role of context in the perception of speed limits, and the way cycle lanes influence this perception. This study examines how respondents in different countries of resi...
Chapter
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Even with technological advances, internal combustion engine vehicles (ICEVs) are unlikely to meet net zero targets, whilst emitting high levels of greenhouse gas emissions in addition to impacting public health. Technological improvements of ICEVs are not enough to meet targets. Therefore, phasing out and banning the sale of new ICEVs as soon as p...
Chapter
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Transitioning away from aviation to reduce emissions remains challenging, especially due to the demographics of current aviation users. This is because although only 11% of the global population have travelled by air, frequent flyers from more economically developed countries contribute significant levels of emissions through international and nati...
Chapter
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Although it remains clear that low carbon public transport will produce less emissions than conventionally fuelled alternatives, and much less when compared to personal vehicles per person per kilometre travelled, encouraging the use of public transport has multiple barriers that need to be overcome to increase widespread use. This includes a shift...
Article
Analysis of the vulnerability of rail transport systems has received considerable attention in the literature over several decades. Since economic development is usually associated with increasing demand for railway transport as more and more passengers rely on railways, the consequence of disruptions to the railway system becomes unaffordable and...
Chapter
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This chapter discusses fuel alternatives for shipping and road freight as a method to reduce greenhouse gas (GHG) emissions and meet emission targets. Transitioning away from diesel fuelled transport will be an important step, as this is currently the main transport fuel for both transport types and an important barrier to overcome. However, most a...
Chapter
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For travel within urban and rural areas, there is a compelling case for policy makers to encourage a transition from using personal vehicles towards low emission rail. Although trains are often seen as a ‘green’ mode of transport, they represent ~ 9% of global passenger movement and only consume ~ 0.6% of global oil, therefore it remains important...
Article
This short topical issues paper supports a rethink of the role of the car in a Mobility as a Service (MaaS) program. In particular, we consider the appeal of including electric cars as part of the sharing service, which we call electric car sharing as a service (ECSaaS). With the inclusion of more sustainable modes, this might be rebadged as eMaaS....
Article
This paper draws on findings from an Australia-wide survey with data collected in three waves throughout 2020 to explore the impact of COVID-19 on public transport trends in metropolitan areas of Australia. Following consideration of the public transport sector response to the pandemic and the emerging literature context, we explore three principal...
Article
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Focus groups on shared, autonomous vehicles (SAVs) in New South Wales expressed “sharing anxiety”—an intense concern about the prospect of sharing their mobility journey with strangers, without a driver or authority figure present. This presents a significant barrier to the acceptance of SAVs, particularly autonomous public and on-demand transport...
Article
Battery electric vehicles (BEVs) are being integrated into the UK transport network to reduce operating emissions (OEs) as BEVs produce zero emission at point of use. True OEs depend upon fuel source emissions, and ‘cradle-to-grave’ life cycle emissions. This paper investigates method comparisons of a simple operation emissions model (OPEM) against...
Article
Noting the continuing lack of agreement as to how the concept of Mobility as a Service (MaaS) should be defined, this short topical issues paper offers an evaluation of the extent to which MaaS faces a very uncertain future. While MaaS remains a compelling concept, without evidence of MaaS contributing to sustainability goals, the multimodal future...
Article
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Assessing greenhouse gas (GHG) emissions produced from electric vehicles (EVs) and hydrogen vehicles (HVs) requires understanding of the carbon intensity of electricity generation. Without the decarbonisation of electricity generation, environmental benefits of low emission vehicles (LEVs) will be diminished. The UK aims to produce net zero emissio...
Article
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Electric trains (ETs) and hydrogen trains (HTs) offer an opportunity for both Japan and the UK to meet their national targets as part of the Paris Agreement. Although ETs and HTs are considered zero emission at the point of use, their true environmental impact is dependent upon non-tailpipe emissions from fuel/energy production and vehicle manufact...
Article
This article provides a framework for understanding the principles and good practice in public transport network planning with an emphasis on bus services. It begins by considering the objectives and purpose of network planning before examining the role of economics in underpinning network planning activities and the higher level objectives of publ...
Article
Along with rapid urbanisation and economic growth, massive development of transport infrastructure has been seen in China, facilitating overall economic development and improved quality of life. Metro is a common form of high-capacity public transport and urban underground space (UUS) utilisation in megacities. On many occasions, for social, enviro...
Article
As an important form of public transport and utilisation of urban underground space (UUS), metro has been promoted in an increasing number of large cities in China. By the end of 2019, China’s 37 cities had developed metro systems with a total length of over 5000 km. It is widely acknowledged that urban and economic factors can significantly influe...
Article
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As urban environments densify and cities across the world employ urban underground metros for the effective rapid movement of millions of people a day, there is an essential need to ensure the safe continued presence and operation of those metros. To achieve this, the authors argue there is a need for a more detailed qualitative analysis of how urb...
Article
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It is widely accepted that the true environmental benefit of electric vehicles (EVs) is dependent upon non-tailpipe emissions from fuel/energy production. Through a comparison of EV and conventionally fuelled vehicle (CFVs) tailpipe emissions in China and the UK, considering their different EV integration plans, were projected between 2017 and 2050...
Article
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A biennial transport survey at the University of Aberdeen was analysed over a ten-year period to better understand the influence of travel demand management (TDM) initiatives on the commuting habits of staff and students. Campus-based TDM initiatives such as a free inter-campus shuttle bus, charged parking permits and cycle infrastructure was intro...
Article
This paper examines the challenges associated with provision of effective transport services to the ‘mobility poor’ and identifies potential methods to overcome these challenges. “Prioritised area” types representing a mix of geographies and population types, in addition to the multi-dimensional influences of mobility access, equity, and provision...
Article
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Electric trains (ET) and hydrogen trains (HT) are considered zero emission at the point of use. True emissions are dependent upon non-tailpipe sources, primarily in energy production. We present UK carbon dioxide (CO2) operating emission model outputs for conventionally fuelled trains (CFT), ETs and HTs between 2017 and 2050 under four National Gri...
Article
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Cycling as a form of active transport has great benefits for individuals and society, yet prevalence rates in many countries are low. The advent of autonomous vehicles (AVs) is likely to have substantial implications for cyclists, however little is known about the nature and magnitude of the likely impacts and the resulting implications for governm...
Article
Mobility is fundamentally important in enabling people to access services, which can deliver substantial benefits to people's quality of life. This is particularly important in rural areas where the range and extent of public transport services are, in general, significantly lower than in urban areas, and, indeed, below the level required to provid...
Article
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For the UK to meet their national target of net zero emissions as part of the central Paris Agreement target, further emphasis needs to be placed on decarbonizing public transport and moving away from personal transport (conventionally fuelled vehicles (CFVs) and electric vehicles (EVs)). Electric buses (EBs) and hydrogen buses (HBs) have the poten...
Book
The widespread adoption of smartphones, ridesharing and carsharing have disrupted the transport sector. In cities around the world, new mobility services are both welcomed and challenged by regulators and incumbent operators. Mobility as a Service (MaaS), an ecosystem designed to deliver collaborative and connected mobility services in a society in...
Chapter
The chapter synthesises the role that government might or should play in the evolving MaaS market to ensure that societal outcomes are supported. These include the great potential to deliver new transport services, improve road safety, alleviate congestion, and increase productivity. It focusses on a number of costs and benefits that define the con...
Chapter
The purpose of this chapter is to motivate the need and rationale for MaaS, in the context of a changing mobility landscape. The chapter begins with some commentary on the hype and rhetoric which has accompanied the MaaS proposition in recent years. Greater clarity is brought to the MaaS concept, dispelling some of the myths which have circulated a...
Chapter
This chapter recaps the contribution of this book by revisiting the questions of the global debate identified in Chapter 3 to examine how many of these questions now have answers, to identify those areas where there are ‘still more questions than answers’, and to compile a list of unanswered questions which need to be the preoccupation of future re...
Chapter
This chapter sets the current debate and experience in the context of the early roots of MaaS. It begins by looking at the background, noting in particular the enabling role of technological change and the developments in the service-sharing economy which have encouraged wide scale on-demand mobility services and the emergence of MaaS. The various...
Chapter
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This chapter seeks to capture experience with MaaS trials to date. Five specific cases are selected for in-depth assessment; two from Sweden (UbiGo and EC2B in Gothenburg); one from Finland (Whim in Helsinki); one from Germany (Mobil-Flat in Augsburg); and one from Australia (Tripi in Sydney). In contrast to the bulk of MaaS and MaaS-like trials, t...
Chapter
As MaaS continues to evolve, a key driver for its success will be the market demand and user willingness to pay for mobility services. This chapter examines the demand for MaaS products where travellers can either pre-pay for their mobility services bundled into a MaaS plan or Pay-as-you-Go (PAYG) through a smartphone app that offers one-stop acces...
Chapter
Supply-side issues around the service delivery of mobility as a service (MaaS) are an important but often neglected aspect in the transport futures discussions, as compared with the demand-side issues covered in Chapter 5. This chapter begins by reviewing how governments procure public transport, particularly relating to how the allocation of respo...
Chapter
Despite an overwhelming interest in Mobility-as-a-Service (MaaS) within the transport sector in recent years, very few such services are hitherto operational. In order to improve the understanding of why the MaaS concept has proven difficult to realise, this chapter sets out to map key institutional barriers. The chapter draws on documented MaaS ac...
Article
This paper considers the contribution made to transport geography research at the University of Aberdeen over the last century. In section one, the earliest work in transport geography emphasised the physical connectivity provided by transport through infrastructure networks. Section 2 discusses the contribution made at Aberdeen to debates around a...
Article
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Use of social media in the public transport sector is rapidly increasing, driven by both passenger demand, and recognition by transport operators of the insights that social media enables. This paper explores the potential for utilising social media (specifically, the Twitter platform) to provide personalised information to public transport passeng...
Article
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Mobility as a Service (MaaS) is seen as a transition from mobility being satisfied by a dominant car ownership model to a service model where mobility needs are met by a multimodal suite of services. The research environment of MaaS is heavily driven by the younger generation’s travel behaviour which appears to be less dominated by car ownership (f...
Article
Mobility as a Service (MaaS) is often cited as providing an alternative solution to car ownership and car dominated lifestyles. However, MaaS as it currently exists appears to cater mainly for a specific segment of society – those who live close enough to walk to good quality public transport for daily journeys and close enough to access car share/...
Article
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This paper investigates factors influencing public transport passengers' pre-travel information-seeking behaviours in a British urban environment. Public transport traveller surveys were conducted to better understand the journey stages at which information was sought and the information sources used. A multivariate explanatory model of pre-travel...
Article
Transport systems play an essential role in urban, economic and social development. Utilising underground space for transport is a continuing trend across the globe during past decades. Underground transport systems have been chosen by cities as potential solutions for solving urbanisation problems such as traffic congestion, land shortage, and noi...
Article
Public transportation systems are important in a world where our cities need sustainability to mitigate the costs of transportation and climate change. This entry examines the connections between transport policy and public transport delivery, how public transport systems impact on land use and vice versa, and the take‐up of public transport by use...
Article
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City transport systems often struggle to cope with high volumes of traffic and become congested, despite the use of various traffic management strategies. The concentration of traffic around city centres results in pollution and poor urban air quality, although the increasing popularity of electric vehicles is helping ameliorate these effects. One...
Article
With the continued urbanization and densification of cities worldwide the planning, and use of urban underground space (UUS) is of clear interest to urban and transport planners; and asset owners/managers. Effective strategies for the management of UUS and its environment once built are required and critical insight of how current use of these spac...
Article
The growth of ridesharing and other “new mobility services (NMS)” poses challenges for traditional public transport operators because they create an environment where consumers can demand an “integrated mobility” from different transport modes and improved accessibility (information, booking, payment systems etc). More recently the discussion about...
Article
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Rural areas generally have lower and more dispersed demands for travel which cannot sustain conventional public transport services and consequently have a greater number of flexible and demand responsive transport services operating. These services usually operate on a stand-alone basis, are often subsidized and are typically only accessible by cer...
Article
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Real-time passenger information (RTPI) systems have been identified as having benefits in terms of passenger willingness to travel by public transport and their satisfaction levels with services provided. The lack of this amenity in rural areas, however, may hamper public transport use, thus reinforcing patterns of over-reliance on personal vehicle...
Article
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Social media platforms are seeing increasing adoption by public transport agencies, as they provide a cost-effective, reliable, and timely mechanism for sharing information with passengers and other travellers. In this paper, we use a case study of the @GamesTravel2014 Twitter account to evaluate how this social media platform was used over the cou...
Article
The availability of real-time passenger information (RTPI) is a key factor in making public transport both accessible and attractive to users. Unfortunately, rural areas often lack the infrastructure necessary to provide such information, and the cost of deploying and maintaining the required technologies outside of urban areas is seen as prohibiti...
Article
An inquiry by the Scottish Parliament Infrastructure and Capital Investment Committee launched in 2013 found that there is a lack of evidence on the social and economic benefits of community transport (CT) in Scotland. This paper reports the outcome of research designed to identify the economic, social and health benefits generated by CT. Following...
Article
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This paper presents results from a segmentation analysis of the emerging market for Electric Vehicles (EVs). Data has been sourced through the application of a self-completion household questionnaire distributed over two cities in the United Kingdom (UK). A two stage cluster analysis methodology has been followed to identify market segments in a da...
Article
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1 2 3 The continued urbanisation of the world's population generates pressures for the greater use of urban space. Where underground metro infrastructure is present within the urban environment, interfaces with private property at the surface and subsurface levels can raise issues from both engineering and legal perspectives. This paper introduces...
Article
Bus Rapid Transit (BRT) has emerged as a cost-effective transport system for urban mobility. The study uses the hedonic price model to investigate the impacts of BRT on residential property values in Beijing, where BRT has been in service for over 6 years. The empirical analysis suggests that BRT has positive impacts on surrounding property values....
Article
This paper explores the potential contribution that the public transport Agency can make to the emerging Mobility as a Service (MaaS) paradigm through the integration of regular collective transport services with complementary flexible transport schemes and other forms of shared-use transport. The latest ICT developments provide new opportunities t...
Chapter
Purpose - This chapter introduces the concept of the Shared Mobility Services Agency for the planning and managing of collective transport services at urban and regional level. Design/methodology/approach - Building on previous work which established the concept of the Flexible Transport Service (FTS) Agency as a single co-ordination centre for dif...
Chapter
Purpose - This chapter presents a novel visualisation tool, known as Flexible Integrated Transport Services (FITS) that transport commissioners, providers and administrators could employ to specify and edit the operating constraints as they redesign transport services. Design/methodology/approach - The context of rural transport planning is discuss...
Article
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The diffusion of electric vehicles (EVs) is regarded as an important aspect of government policy which aims to generate a transition to a low-carbon mobility system in the United Kingdom and the wider European context. This paper investigates consumer demand for EVs by examining the influence of consumer innovativeness alongside attitudes concernin...
Article
The TRB-sponsored international paratransit conference Shaping the New Future of Paratransit, held in Monterey, California, in October 2014, represented the first gathering of the international paratransit community in conference format since 1997. The conference itself drew a cross section of operators, technology providers, policy makers, and res...
Article
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Mobile real-time passenger information (RTPI) systems are becoming ubiquitous in public transport and a plethora of studies have explored the effects they have on passengers. However, these studies mostly focus on urban areas and largely ignore rural dwellers. In this paper, we present results of a study that looks into the effects that mobile RTPI...
Article
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Nature conservation organisations increasingly turn to new digital technologies to help deliver conservation objectives. This has led to collaborative forms of working with academia to spearhead digital innovation. Through in-depth interviews with three UK research-council-funded case studies, we show that by working with academics conservation org...
Conference Paper
This paper presents the Transport Disruption ontology, a formal framework for modelling travel and transport related events that have a disruptive impact on traveller’s journeys. We discuss related models, describe how transport events and their impacts are captured, and outline use of the ontology within an interlinked repository of the travel inf...
Conference Paper
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In recent years, the advances in real-time transport telematics systems that use computer, communication, navigation and information systems, make the dissemination of the passenger information more effective and efficient. This led to real time passenger information systems to become more and more common. This paper explores the aforementioned in...
Article
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This paper reports findings from a research study which assesses the importance of attitudinal constructs related to general car attitudes and the meanings attached to car ownership over evaluations of electric vehicles (EVs). The data are assessed using principal component analysis to evaluate the structure of the underlying attitudinal constructs...
Conference Paper
p>Securing provenance has recently become an important research topic, resulting in a number of models for protecting access to provenance. Existing work has focused on graph transformation mechanisms that supply a user with a provenance view that satisfies both access control policies and validity constraints of provenance. However, it is not alwa...