Vetenskapliga artiklar

Vetenskapliga artiklar

Vetenskapliga artiklar

Cars. Problematisations, measures and blind spots in local transport and land use policy

Robert Hrelja, Land Use Policy, vol. 87
Goals concerning reduced car traffic are found in most European cities, indicating a potential change in local transport policy and land use planning, which have traditionally been very car-centric. This paper analyses goals and measures to reduce car traffic in Swedish municipalities’ long-term transport and land use plans. Theoretically, the paper is based on an understanding of policies as parts of ‘problem representations’ that create particular ways of understanding car traffic as a policy problem, which in turn influence the measures seen as appropriate or inappropriate. The results indicate that changes are underway. At the heart of these changes are narratives about city development in which municipalities understand the ‘attractive city’ as one where cars are defined as a problem to be addressed. However, the dominant policy problematisation produce several ‘blind spots’. Regional car trips, including travel to out-of-town shopping areas, are left unproblematised in this representation of the problem, meaning that measures addressing such trips are ignored in policy making. The paper builds our understanding of how policy practices influence the potential for change towards sustainability by discussing whether municipalities are doing enough to address the big problems with cars.
Vetenskapliga artiklar

Evaluation of free public transport for older people in Sweden

Tania Dukic Willstrand, Per Henriksson, Helena Svensson and Lena Levin, Proceedings of the 6th Humanist Conference, The Hague, Netherlands, 13-14 June 2018
Older citizens safe mobility is an issue as the number of older people is growing and expect to live longer than previous generations . To keep their independence and to allow them to take part in the society, transport accessibility is an issue to be solved. The present study dev eloped a survey to evaluate a subsidised public transport card for older citizens in the western part of Sweden and how the physical health contributes to the use of public transport . A questionnaire was sent to 1500 older citizens in three municipalities to examine how this measure influence d their travel patterns and whether this is an efficient measure to increase their use of public transport . Results show a significant effect of the senior card which vary depending on the municipality and incomes. Some older citizens increase d travelling with public transport ( PT )), they changed the time of the day for some activities and to some extend prioritize d PT in another way than before they got the subsidised card . The senior card contributed to shift travel mod e choice from private car to PT but also from cycling /walking to PT. To reach a sustainable safe mobility for older citizens, a discussion is on going to find and target measures to this broad group of individuals. Health and environment goals need to be considered to reach the desired results.
Vetenskapliga artiklar

Discrete event simulation of bus terminals

Therese Lindberg, Licentiate Thesis, Linköping May 2019
Public transport is important to society as it provides spatial accessibility and reduces congestion and pollution in comparison to other motorized modes. To assure a high-quality service, all parts of the system need to be well-functioning and properly planned. One important aspect for the system's bus terminals is their capacity. This needs to be high enough to avoid congestion and queues and the delays these may lead to. During planning processes, various suggested designs and solutions for a terminal need to be evaluated. Estimating capacity and how well the suggestions will function is a challenging problem, however. It requires analysis of complex interactions and behaviour of the vehicles. This sort of analyses can preferably be carried out using microsimulation. Furthermore, a discrete event simulation approach can make use of the fact that the path of a vehicle through a terminal can readily be described by a sequence of events (such as arriving, starting to drive to a stop etc.). The overall aim of this thesis is to investigate how discrete event simulation can be used to evaluate bus terminal design and traffic control policies. The main contribution is the development of a method for bus terminal simulation. As a first step, a discrete event simulation model of a combined bus and tram stop is formulated. The model is tested on a real system where the current design is compared to an alternative one. The test shows that a model developed with a discrete event approach can be used to evaluate the situation at a stop and compare design alternatives. In the next step, a general discrete event simulation model of bus terminals is formulated. A modular approach is introduced, where a terminal can be constructed from a set of module building blocks. Another important contribution of the model is its spatial resolution that allows for queues and blockages to occur throughout the terminal. By applying the simulation model in a case study, it is shown that the model can be used to evaluate and compare various scenarios related to the layout, number of passengers and the outside traffic situation. Lastly, the bus terminal simulation model is used in a second case study in order to compare model output with empirical data. This study identified a number of factors that may have had an influence on differences between observations and simulation results and that is of interest to look further into. This includes the actual adherence to terminal rules and the effects of model parameters.
Vetenskapliga artiklar

Disparities in mobility among older people: Findings from a capability-based travel

Jean Ryan, Anders Wretstrand and Steven M Schmidt, May 2019
Despite some incremental policy shifts accounting for transport equity concerns, the norms within which transport systems world wide currently function are still implicitly exclusive. Older people constitute a group which is particularly susceptible to issues within the transport system. However, this susceptibility is not evenly distributed, partly due to the considerable heterogeneity in circumstances among this group. The aim of this study is to advance the methods in-forming the transport equity policy agenda by conducting an empirical investigation of disparities in capabilities based on Sen's Capability Approach. This is done by identifying which resources and characteristics among those aged 65–79 are associated with fewer opportunities relative to their peers. By focusing on capabilities (instead of proxies), the disparities reflecting equity concerns can be more clearly depicted. The research material comprises 1149 interviews with those living in Sweden's large metropolitan regions: Stockholm, Gothenburg and Malmö. Several analyses were developed in order to address the research questions: a multivariate multinomial logistic regression, multivariate binary logistic regressions and a basic analysis of frequencies. Clear links were identified between social resources, holding a driving license, access to public transport, income, health condition and age and capabilities. These results call for a greater focus on capabilities in travel surveys and a more fine-grained approach to equity analyses and policies by accounting for intersectionality effects. As such, more targeted and holistic policy measures can be developed.
Vetenskapliga artiklar

Swedish and Scottish National Transport Policy and Spend: A Social Equity Analysis

Tom Rye and Anders Wretstrand 29 March 2019
The topic of social equity in transport planning has been dealt with, in particular, by authors such as Martens (2012) and Martens and Golob (2012) using a social justice based-approach. However, such an approach, whilst valuable and analytically rigorous (based as it is on accessibility modelling), does not consider a wide range of possible other social impacts of transport, as set out in a framework first put forward by Geurs et al. (2009). This paper uses Geurs’ analytical framework to consider two empirical case studies: The National Transport Strategy for Scotland, adopted in January 2016, together with associated national level spending plans; and Sweden’s 2014–2025 National Transport Plan. The paper will first summarise the contents of each document before analysing them in relation to the categories of social impact that Geurs (2009) identifies, and assess how, in relation to each category of impact, various social groups will benefit or disbenefit. A range of projects (planned) to be delivered by the two national strategies is then analysed in relation to the criteria. This analysis shows that the two national strategies/plans are in their distribution of spending, and the projects funded are generally working away from greater social equity in their distributional impacts.
Vetenskapliga artiklar

Governing Mobility-as-a-Service: Insights from Sweden and Finland

Göran Smith et al, book chapter in The Governance of Smart Transportation Systems, 2019
Based on a review of recent developments in Sweden and Finland, this chapter analyzes the roles of public organizations in the governance of a transition to Mobility-as-a-Service (MaaS). In particular, we draw on insights from transition frameworks to explore what these two pioneering cases can teach us about how the public sector can both enable the development of MaaS and steer the development trajectory toward diffusion of MaaS offerings that contribute to transport policy goals. We propose three main points. Firstly, public sector organizations at national, regional, and local levels have key roles to play in potential transitions to MaaS, regardless of their intended operative roles in the emerging MaaS ecosystem. Secondly, a central task for public sector organizations is to align operational and tactical MaaS governance activities with both an overarching MaaS strategy and with other relevant strategies, such as transport infrastructures investments, programs for economic and industrial growth, city plans, and parking norms. Thirdly, new models and tools for public–private collaboration are needed in order to effectively govern the development and diffusion of sustainable MaaS.
Vetenskapliga artiklar

Potentials of Context-Aware Travel Support during Unplanned Public Transport Disturbances

Åse Jevinger, Jan Persson, Sustainability 2019, 11(6)
Travel support for public transport today usually takes no or little account of the traveler’s personal needs and current context. Thereby, travelers are often suggested irrelevant travel plans, which may force them to search for information from other sources. In particular, this is a problem during unplanned disturbances. By incorporating the traveler’s context information into the travel support, travelers could be provided with individually tailored information. This would especially benefit travelers who find it more difficult than others to navigate the public transport system. Furthermore, it might raise the accessibility and general attractiveness of public transport. This paper contributes with an understanding of how information about the traveler’s context can enhance the support provided by travel planners, in the case of disturbances in public transport. In particular, the paper includes a high-level analysis of how and in which situations context information can be useful. The analysis shows how information about the traveler’s context can improve travel planners, as well as highlights some risks in relation to some identified scenarios. Several technologies for retrieving information about the physical context of the traveler are also identified. The study is based on a literature review, a workshop, and interviews with domain experts.
Vetenskapliga artiklar

An urban bikeway network design model for inclusive and equitable transport policies

Rosalia Camporeale et al, Transportation Research Procedia, Vol 27, 2019
This study suggests an optimization framework to plan and design a network of bike lanes in an urban context, based on equity principles and subject to a given available budget. The novelty of the proposal consists in an objective function that aims at minimizing the existing inequities among different population groups in terms of accessibility/opportunity to the bikeways. The proposed methodology represents a reliable decision support system tool that could help transport authorities/managers to select the priority areas of their future investments related to the cycling infrastructures. To prove the effectiveness and value of the methodology, an application with relevant analysis to a test case study is presented
Vetenskapliga artiklar

How May Public Transport Influence the Practice of Everyday Life among Younger and Older People and How May Their Practices Influence Public Transport?

Lena Levin in Social Sciences vol. 8 issue 3, March 2019
This paper examines public transport use through the lens of practice to understand the perspectives of two categories of public transport users: Younger and older people. In taking this approach, we assume that the forms of mobility in a society are dependent on citizens’ everyday practices and on the structures of the cities, landscapes, etc. Transport needs and accessibility may vary depending on contexts (i.e., where and how we live) and on the various resources of groups of citizens. Results indicated that younger people are repeatedly referred to public transport to meet their mobility needs, while older people are more often car-dependent. Local variations, among both younger and older people, indicate higher confidence in public transport in big and medium-sized cities and a greater desire for car ownership in small cities. For the transition to sustainable mobility, e.g., public transport, transport associations and local governments should be responsive to the practice of everyday life among citizens: e.g., younger people’s leisure activities in afternoons and weekends, and older people’s wish for accessible transport service outside the dominant flow of passengers and their daily commuting practice. The data come from Sweden, specifically from focus groups with teenagers aged 14–16 years and retired people aged 63–97 years.
Vetenskapliga artiklar

Urban Transport and Eco-Urbanism: A Global Comparative Study of Cities with a Special Focus on Five Larger Swedish Urban Regions

Jeffrey Kennworthy, Urban Sci. 2019, 3(1)
Urban transport is critical in shaping the form and function of cities, particularly the level of automobile dependence and sustainability. This paper presents a detailed study of the urban transport eco-urbanism characteristics of the Stockholm, Malmö, Göteborg, Linköping, and Helsingborg urban regions in southern Sweden. It compares these cities to those in the USA, Australia, Canada, and two large wealthy Asian cities (Singapore and Hong Kong). It finds that while density is critical in determining many features of eco-urbanism, especially mobility patterns and particularly how much public transport, walking, and cycling are used, Swedish cities maintain healthy levels of all these more sustainable modes and only moderate levels of car use, while having less than half the density of other European cities. Swedish settlement patterns and urban transport policies mean they also enjoy, globally, the lowest level of transport emissions and transport deaths per capita and similar levels of energy use in private passenger transport as other European cities, and a fraction of that used in lower density North American and Australian cities. Swedish urban public transport systems are generally well provided for and form an integral part of the way their cities function, considering their lower densities. Their use of walking and cycling is high, though not as high as in other European cities and together with public transport cater for nearly 50% of the total daily trip making, compared to auto-dependent regions with between about 75% and 85% car trips. The paper explores these and other patterns in some detail. It provides a clear depiction of the strengths and weaknesses of Swedish cities in urban transport, some key policy directions to improve them and posits possible explanations for some of the atypical patterns observed

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