529 research outputs found

    Increasing Use of Public Transit

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    The Niagara Frontier Transportation Authority (NFTA) provides bus and rail service to Erie and Niagara Counties. In Erie County, this metro service is delivered via 38 interwoven bus routes and one light rail line. Service extends out to many of Buffalo’s outer-ring suburbs but is concentrated within City limits and runs most frequently during peak hours. The NFTA also provides special transit service to disabled riders, riders attending special events, and metro pass holders in need of emergency transportation. Riders have the choice of purchasing single passes, day passes, or month passes

    Prioritizing Metro Service Quality Attributes to Enhance Commuter Experience: TOPSIS Ranking and Importance Satisfaction Analysis methods

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    A metro infrastructure, facility and service quality investigation based on commuter perception was conducted in this study to explore and prioritize the key attributes influencing overall metro service quality in typical Indian context. Based on the critical state of the art review, 12 key attributes were identified and they were accommodated in a paper based questionnaire to elicit commuter perception of importance and satisfaction by using a five point Likert scale. Subsequently, TOPSIS, an extensively adopted Multi attribute decision making technique, was carried out to rank the attributes with respect to perceived importance and satisfaction. Then an importance satisfaction analysis (ISA) was conducted to further classify the attributes in four quadrants based on their perceived degree of importance and satisfaction using an ISA matrix. Finally, the derived results from the TOPSIS and ISA analysis were combined and compared to obtain a prioritized set of attributes requiring intervention for better metro service quality in Indian context. Results of this study clearly indicated the relative strengths and weaknesses of each metro service/infrastructure specific attribute and presented the probable role of metro authorities for each of them. Attributes such as, Metro fare, Connection to metro and Metro frequency were observed to be the most important but were not performing satisfactorily, indicating that more emphasis is required on these attributes for improving the overall quality of travel by metro rail in Indian context. Hence, this methodology would be instrumental to detect a set of priority areas of improvement in metro rail service, which could contribute to retain the existing commuters and attract new metro users

    Tuesday Morning

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    Hazards threatening underground transport systems

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    The final publication is available at Springer via http://dx.doi.org/10.1007/s11069-020-03860-wMetro systems perform a significant function for millions of ridership worldwide as urban passengers rely on a secure, reliable, and accessible underground transportation way for their regular conveyance. However, hazards can restrict normal metro service and plans to develop or improve metro systems set aside some way to cope with these hazards. This paper presents a summary of the potential hazards to underground transportation systems worldwide, identifying a knowledge gap on the understanding of water-related impacts on metro networks. This is due to the frequency and scope of geotechnical and air quality hazards, which exceed in extreme magnitude the extreme precipitation events that can influence underground transportation systems. Thus, we emphasize the importance of studying the water-related hazards in metro systems to fill the gaps in this topic.Peer ReviewedPostprint (author's final draft

    Efficiency of the Portuguese metros. is it different from other European metros?

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    This research analyses the performance of Portuguese metros in the European context. By means of two non-parametric benchmarking techniques, respectively performance indicators and data envelopment analysis, we compute the efficiency of 37 European metros. In order to provide statistical inference and robustness to our results we apply the recent technique of bootstrap. We also use the partial frontiers (order-m) to identify outliers and the double bootstrap procedure in a second stage methodology to take into account the influence of the operational environment. The results show important levels of inefficiency both in the Portuguese metros and in other European metros.Metro; Efficiency; Portugal; Performance Indicator; Data Envelopment Analysis

    INTERREGIONAL EFFECTS OF REDUCED TIMBER HARVESTS: THE IMPACT OF THE NORTHERN SPOTTED OWL LISTING IN RURAL AND URBAN OREGON

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    A core-periphery, multiregional, input-output model of western Oregon is used to estimate impacts of periphery timber harvest reductions resulting from listing of an endangered species. Under the most probable scenario, 31,620 total jobs would be lost in the two regions. Fourteen percent of this impact is absorbed in the core (Metro) region. Forty percent of periphery and 80% of Metro jobs lost are from service sectors, a result of important core-periphery trade in central place services. Explicit inclusion of unemployment benefits for displaced workers reduces employment loss estimates by 12% to 14%.Resource /Energy Economics and Policy,

    Detecting metro service disruptions via large-scale vehicle location data

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    Urban metro systems are often affected by disruptions such as infrastructure malfunctions, rolling stock breakdowns and accidents. The crucial prerequisite of any disruption analytics is to have accurate information about the location, occurrence time, duration and propagation of disruptions. To pursue this goal, we detect the abnormal deviations in trains’ headway relative to their regular services by using Gaussian mixture models. Our method is a unique contribution in the sense that it proposes a novel, probabilistic, unsupervised clustering framework and it can effectively detect any type of service interruptions, including minor delays of just a few minutes. In contrast to traditional manual inspections and other detection methods based on social media data or smart card data, which suffer from human errors, limited monitoring coverage, and potential bias, our approach uses information on train trajectories derived from automated vehicle location (train movement) data. As an important research output, this paper delivers innovative analyses of the propagation progress of disruptions along metro lines, which enables us to distinguish primary and secondary disruptions as well as effective recovery interventions performed by operators

    Transport integration - an impossible dream?

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    Transport Integration and an Integrated Transport Policy have been widely espoused for many years, yet remain an ambiguous and ill-defined concept. After featuring strongly in the 1998 Transport Policy White Paper, recently transport integration has received less emphasis. However it appears it is set for a return under the new Transport Secretary, Lord Adonis.This paper explores the meaning of Integrated Transport. It concludes that there is no point in attempting to identify a single definition, but that there are overlapping layers of meaning, with higher levels incorporating lower, or narrower, understandings of the term Integrated Transport. This exploration of meanings of integration is a development of initial work (Potter and Skinner 2000) and is important as the alternative meanings lead to different transport policy responses. These meanings include: - Locational Integration: being able to easily change between transport modes (using Interchanges) - this is about services connecting in space - Timetabling Integration: Services at an interchange connect in time. - Ticketing Integration: Not needing to purchase a new ticket for each leg of a journey - Information Integration: Not needing to enquire at different places for each stage of a trip - or that different independent sources are easily connected - Service Design Integration: That the legal, administrative and governance structures permit/encouraging integration - Travel Generation Integration: Integrating the planning of transport with the generators of travel (particularly integration with land use planning) Furthermore, there are inherent tensions which make transport integration difficult to achieve. Only limited progress has been achieved in the UK since the 1998 White Paper, and even in Germany, with their strong transport policy structures, integration has failed (Schöller-Schwedes, 2009). This exploration of meanings will also explore the tensions involved as there is a danger of the UK chasing again a flawed concept

    Flood risk assessment in an underground railway system under the impact of climate change: a case study of the Barcelona metro

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    Flooding events can produce significant disturbances in underground transport systems within urban areas and lead to economic and technical consequences, which can be worsened by variations in the occurrence of climate extremes. Within the framework of the European project RESCCUE (RESilience to cope with Climate Change in Urban arEas—a multi-sectorial approach focusing on water), climate projections for the city of Barcelona manifest meaningful increases in maximum rainfall intensities for the 2100 horizon. A better comprehension of these impacts and their conditions is consequently needed. A hydrodynamic modelling process was carried out on Barcelona Metro Line 3, as it was identified as vulnerable to pluvial flooding events. The Metro line and all its components are simulated in the urban drainage models as a system of computational link and nodes reproducing the main physical characteristics like slopes and cross-sections when embedded in the current 1D/2D hydrodynamic model of Barcelona used in the project RESCCUE. This study presents a risk analysis focused on ensuring transport service continuity in flood events. The results reveal that two of the 26 stations on Metro Line 3 are exposed to a high risk of flooding in current rainfall conditions, and 11 of the 26 stations on Metro Line 3 are exposed to a high risk of flooding in future rainfall conditions for a 20-year return period event, which affects Metro service in terms of increased risk. This research gives insights for stakeholders and policymakers to enhance urban flood risk management, as a reasonable approach to tackle this issue for Metro systems worldwide. This study provides a baseline for assessing potential flood outcomes in Metro systems and can be used to evaluate adaptation measures’ effectiveness.This research, under the RESCCUE Project, was funded by the European Commission Horizon2020 funding program. Grant Agreement No. 700174. The authors are grateful to BCASA (from Barcelona City Council) and Bristol City Council for their contributions and insights to implement the methodology and fit it into their new Drainage Master Plans. Thank you also to all partners of the Project RESCCUE for their work during the 4 years of the project, which made this work possible.Peer ReviewedPostprint (published version
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