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Sustainable transportation systems engineering
Featuring in-depth coverage of passenger and freight transportation, this comprehensive resource discusses contemporary transportation systems and options for improving their sustainability. The book addresses vehicle and infrastructure design, economics, environmental concerns, energy security, and alternative energy sources and platforms. Worked-out examples, case studies, illustrations, equations, and end-of-chapter problems are also included in this practical guide.
Book
Transforming transport planning in the postpolitical era
The aim of this paper is to examine how the postpolitical era of planning has created both binaries and intersections in the reimaging of transport futures and how the latter precipitates a redefinition of democratic transport prioritisation. Focusing particularly on the point in the transport planning process when urban transport priorities are identified, the paper explores how citizens respond to the inherently political, yet not always democratic, aspects of setting transport investment priorities. This relationship is investigated through a single case study of Melbourne, Australia where a six km inner city road tunnel was deemed a 'done deal' by elected officials in the lead up to a state election, removing the controversial project from open public scrutiny. Drawing upon ethnographic research and semi-structured interviews with community campaigners opposing the proposed East West Link road tunnel, this analysis reveals how community-based groups and individual residents alike can evolve beyond NIMBY-focused agitation to garner a spatially dispersed re-politicisation of urban transport priorities. While the postpolitical framing of infrastructure delivery introduces a binary between state interventionist planning and citizen opposition, it is the mobilisation of action through the spaces of intersection where new political paradigms for transport planning are created.
Journal Article
Realizable accessibility: evaluating the reliability of public transit accessibility using high-resolution real-time data
The widespread availability of high spatial and temporal resolution public transit data is improving the measurement and analysis of public transit-based accessibility to crucial community resources such as jobs and health care. A common approach is leveraging transit route and schedule data published by transit agencies. However, this often results in accessibility overestimations due to endemic delays due to traffic and incidents in bus systems. Retrospective real-time accessibility measures calculated using real-time bus location data attempt to reduce overestimation by capturing the actual performance of the transit system. These measures also overestimate accessibility since they assume that riders had perfect information on systems operations as they occurred. In this paper, we introduce realizable real-time accessibility based on space–time prisms as a more conservative and realistic measure. We, moreover, define accessibility unreliability to measure overestimation of schedule-based and retrospective accessibility measures. Using high-resolution General Transit Feed Specification real-time data, we conduct a case study in the Central Ohio Transit Authority bus system in Columbus, Ohio, USA. Our results prove that realizable accessibility is the most conservative of the three accessibility measures. We also explore the spatial and temporal patterns in the unreliability of both traditional measures. These patterns are consistent with prior findings of the spatial and temporal patterns of bus delays and risk of missing transfers. Realizable accessibility is a more practical, conservative, and robust measure to guide transit planning.
Journal Article
Urban transportation innovations worldwide : a handbook of best practices outside the United States
\"This handbook of urban transportation planning presents case studies detailing 40 best practices from 33 states in America and 19 countries on six continents. Cities around the world have improved transportation options for their citizens\"-- Provided by publisher.
Book
Should Urban Transit Subsidies Be Reduced?
This paper derives empirically tractable formulas for the welfare effects of fare adjustments in passenger peak and off-peak rail and bus transit, and for optimal pricing of those services. The formulas account for congestion, pollution, accident externalities, scale economies, and agency adjustment of transit service offerings. We apply them using parameter values for Washington (DC), Los Angeles, and London. The results support the efficiency of the large current fare subsidies; even starting with fares at 50 percent of operating costs, incremental fare reductions are welfare improving in almost all cases. These findings are robust to alternative assumptions and parameters.
Journal Article
Transport for suburbia : beyond the automobile age
\"The need for effective public transport is greater than ever in the 21st century. With countries like China and India moving towards mass-automobility, we face the prospects of an environmental and urban health disaster unless alternatives are found. It is time to move beyond the automobile age. But while public transport has worked well in the dense cores of some big cities, the problem is that most residents of developed countries now live in dispersed suburbs and smaller cities and towns. These places usually have little or no public transport, and most transport commentators have given up on the task of changing this: it all seems too hard. This book argues that the secret of 'European-style' public transport lies in a generalizable model of network planning that has worked in places as diverse as rural Switzerland, the Brazilian city of Curitiba and the Canadian cities of Toronto and Vancouver. It shows how this model can be adapted to suburban, exurban and even rural areas to provide a genuine alternative to the car, and outlines the governance, funding and service planning policies that underpin the success of the world's best public transport systems.\"--Back cover.
BOOK
Advancing the practice of regional transportation equity analysis: a San Francisco bay area case study
As the transportation industry continues to evolve, it is urgent that we develop and implement methods for clearly evaluating the range of transportation engineering, planning, and policy impacts experienced by various population segments. While theories of transportation equity have advanced over the past decade, such advancements outpace existing methods for evaluating the fairness of large-scale transportation investments for disadvantaged communities. In this study, a regional activity-based travel model for the Bay Area, California is used to perform an equity analysis of two of the region’s transportation and land-use planning scenarios. Equity outcomes are tested relative to three equity standards: Equality, Proportionality, and Rawlsian justice. The primary objective is to demonstrate the usefulness of a full-scale activity-based travel model for regional transportation equity analysis. We demonstrate that fine-grained distributional measures play an important role in examining the individual and household-level impacts of regional transportation scenarios, and can complement existing Environmental Justice assessments and equity analyses by helping to explain underlying reasons for average group impacts. Distributional measures can further reveal harmful cases when disadvantaged groups are most likely to experience the disbenefits of the transportation scenarios. Yet, each type of measures in isolation does not tell the complete story of which planning scenario is likely to deliver more equitable outcomes. Finally, we demonstrate the significance of applying equity standards for ranking planning scenarios, and we find that the ranking of scenarios will vary according to the equity standard, as well as how associated evaluation criteria are defined.
Journal Article
Spatio-temporal analysis of rail station ridership determinants in the built environment
The development of new routes and stations, as well as changes in land use, can have significant impacts on public transit ridership. Thus, transport departments and governments should seek to determine the level and spatio-temporal dependency of these impacts with the aim of adjusting services or improving planning. However, existing studies primarily focus on predicting ridership, and pay relatively little attention to analyzing the determinants of ridership from temporal and spatial perspectives. Consequently, no comprehensive cognition of the spatio-temporal relationship between station ridership and the built environment can be obtained from previous models, which makes them unable to facilitate the optimization of transportation demands and services. To rectify this problem, we have employed a Bayesian negative binomial regression model to identify the significant impact factors associated with entry/exit ridership at different periods of the day. Based on this model, we formulated geographically weighted models to analyze the spatial dependency of these impacts over different periods. The spatio-temporal relationship between station ridership and the built environment was analyzed using data from Beijing. The results reveal that the temporal impacts of most ridership determinants are related to the passenger trip patterns. Furthermore, the spatial impacts correspond with the determinants’ spatial distribution, and the results give some implications on urban and transportation planning. This analysis gives a common analytical framework analyzing impacts of urban characteristics on ridership, and extending researches on how we capture the impacts of urban and other factors on ridership from a comprehensive perspective.
Journal Article