Transportation Research Interdisciplinary Perspectives最新文献_第3页

Spatio-temporal impacts of unplanned service disruptions on public transit demand

IF 3.9 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2025-02-12 DOI: 10.1016/j.trip.2025.101354

Benjamin Cottreau , Ouassim Manout , Louafi Bouzouina

Public Transit (PT) operators often face unplanned subway service disruptions, which are challenging to handle because they need rapid and effective management strategies. Under such conditions, their goal is to limit user dropout by proposing attractive solutions. With the development of Automatic Fare Collection (AFC) systems and the ability to deal with increasing data volumes, research has recently focused on demand-oriented analysis of disruptions and demand-based strategies. However, AFC data can be incomplete and delayed when uploaded in real time and, therefore, are poorly monitored by PT operators. For this reason, this work seeks to show the relevance of using AFC data to enhance the implementation of disruption management strategies. It aims to understand when, where, and why service disruptions occur. Findings show that 39% of the service disruptions observed between 2021 and 2023 have a negative impact on demand. Thanks to the Gaussian Mixture Model (GMM) algorithm, we distinguish 3 levels of negative impacts: high, medium and low intensity. Results highlight that the PT system is more vulnerable to long-lasting disruptions, which occur during peak hours. The connection with the national railway system also increases the vulnerability of PT systems to disruptions. Using a Multinomial Logistic Regression model, this work highlights the causes that mostly harm the demand and calls for line-specific management strategies. In addition, the contextual analysis introduced in this study reveals the clues left by disruptions in demand levels and argues for the development of online disruption detection coupled with flow redistribution models to enhance decision-making.

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引用次数: 0

Navigating disruption in public transit: Lessons from the COVID experiences of ten agencies that enjoyed pre-pandemic ridership growth

IF 3.9 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2025-02-11 DOI: 10.1016/j.trip.2025.101353

Dristi Neog , Elham Shekari , Jeffrey Brown

Public transit agencies must navigate disruptive events. Most disruptions are geographically constrained or temporally limited in duration. However, the COVID pandemic is the rare case of a societal scale disruption that affected all transit agencies over a period lasting many months. This study examines the pandemic experiences of ten transit agencies that enjoyed ridership growth prior to the pandemic (which we refer to as “successful agencies”). The authors interviewed agency leaders to learn about their pre-disruption rider markets and service, the disruption’s effect on their ridership and the service adjustments they made in response, and their strategies for engaging with riders and transit employees during the disruption. The authors learned that agencies that had a larger transit-dependent ridership base were less severely impacted by the pandemic than their peers. The more successful agencies prioritized the needs of these core riders when making service decisions, communicated in a transparent manner with their riders and employees, and possessed leadership that was strategic in their decision making. The insights obtained from the study increase our knowledge about the impacts and mitigators of disruptive events, like the COVID pandemic, and offer lessons to other agencies that might confront disruptions in the future.

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引用次数: 0

Transport equity impacts of green growth initiatives in Vietnam: An empirical evaluation using panel data

IF 3.9 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2025-02-10 DOI: 10.1016/j.trip.2025.101346

An Minh Ngoc , Yasuhiro Shiomi , Huynh Quang Nghi , Muhammad Faizan ul Haq , Alessandro Severino , Doanh Nguyen-Ngoc

This study investigates the impact of first-generation Green Growth (GG) initiatives on transport equity in Vietnam. Since 2012, the GG initiatives have focused on reducing Greenhouse Gas (GHG) emissions and enhancing energy efficiency by promoting a shift from private to public transport. The transport equity impacts of these initiatives are studied and quantified using comprehensive data from the Vietnam Household Living Standards Survey (VHLSS) between 2014 and 2020. To explore horizontal and vertical equity, we developed a transit service index to measure changes in the implementation of GG initiatives and employed the Entropy weighting analysis (EWA) method, cluster analyses alongside the Lorenz curves, and the Gini index. The spatial distribution of transport equity changes is mapped to illustrate regional variations in response to GG initiatives. Results are presented through Lorenz curves, showcasing improvements in horizontal transport equity across Vietnam’s regions, while vertical equity among provinces is assessed using the Gini index. The study contributes in practice by providing evidence to policymakers for a better understanding of the GG initiatives’ impacts. Finally, the study proposes several implications for policymakers to create efficient GG measures to retain transport equity.

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引用次数: 0

Understanding Sofia’s travel dynamics: Study of private traffic patterns and urban mobility

IF 3.9 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2025-02-10 DOI: 10.1016/j.trip.2025.101352

Lidia Lazarova Vitanova, Evgeny Shirinyan, Tereza Trendafilova, Dessislava Petrova-Antonova

Transportation and mobility provide a foundation for sustainable society, facilitating the efficient movement of people, goods, and services across diverse spatial and temporal scales. They not only support economic activities and enhance social interactions but also enable urban development, global trade, and access to essential resources and opportunities. This study introduces a comprehensive framework for analysing the dynamics of urban transport and travel behaviours related to private vehicles, considering different temporal and spatial dimensions in Sofia, Bulgaria. By integrating high-resolution data from TomTom’s Traffic Stats with Geographic Information Systems (GIS), the study develops an advanced approach that merges various datasets, including traffic flow, density, and energy consumption, thereby facilitating multidimensional assessments of urban challenges at the city level. The significant benefit of this research is its potential for scalability and relevance to other metropolitan areas, especially those encountering comparable issues related to rising urban density, traffic congestion, and environmental pressures. The findings reveal notable traffic fluctuations, with peak congestion during weekday rush hours, particularly concentrated in central business districts and major arterial routes. Persistent congestion areas are also identified on weekdays and weekends, highlighting critical zones requiring infrastructural improvements and optimised traffic management strategies. The results underscore the importance of implementing sustainable urban mobility policies, optimising transport infrastructure, and strategies for climate adaptation.

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引用次数: 0

Tailoring bus rapid transit to the complex realities of African Cities: Critical issues and public policy planning approaches

IF 3.9 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2025-02-06 DOI: 10.1016/j.trip.2025.101351

Emmanuel Theodore Asimeng, Franco Jauregui-Fung

Paratransit services in African cities, characterised by reckless driving, unscheduled operations, ageing and small vehicles, tax avoidance, lack of social protection, and irregular worker earnings, account for a significant share of daily trips. To address these challenges, some cities have turned to bus rapid transit (BRT) systems as a more affordable and efficient public transit solution. While 191 cities globally have implemented BRT, only six are in Africa. These African BRT implementations have often been fraught with difficulties, including delays, cost overruns, and operational challenges, while several projects have failed to materialise despite significant public investment. This raises a critical question: why is BRT adoption limited in African cities, despite rapid urbanisation and the inadequacies of paratransit systems? In response to this question, this paper examines three public policy planning concepts commonly applied to BRT projects: rationalist, disjointed incremental, and step-by-step, evaluating their effectiveness and limitations in the African context. Based on this analysis, we propose an approach that aligns more closely with African cities’ unique socioeconomic and transport dynamics. Additionally, we provide strategies for addressing key implementation challenges, such as integrating BRT with existing transport systems, managing stakeholder resistance, and ensuring financial and institutional sustainability. Grounded in a comprehensive review of three BRT case studies and public policy frameworks, this paper offers actionable recommendations to strengthen BRT as a viable solution to urban transport challenges in African cities. We recommend adopting a step-by-step approach that emphasises institutional and legislative restructuring, management of competing transit modes, stepwise implementation of BRT components, and innovative infrastructure funding strategies to ensure the new service’s successful implementation, operation and sustainability.

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引用次数: 0

No more flying blind: Leveraging weather forecasting for clear-cut risk-based decisions

IF 3.9 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2025-02-05 DOI: 10.1016/j.trip.2025.101349

Manuel Lombardi , David Sladek , Francesco Simone , Riccardo Patriarca

Unmanned aircraft systems (UASs) have experienced a notable surge in applications, particularly with the increasing deployment of vertical take-off and landing (VTOL) vehicles in urban environments, which are more flexible in comparison to traditional aircraft. Nevertheless, the advantages of using VTOLs come with an increase in operational risks, too. Although there are approaches to support the fulfillment of safety objectives for VTOL operations, none of them specifically consider the type of weather information needed to guide decision-making successfully. Having detailed weather forecasts within operational areas can help avoid unwanted outcomes while assuring safe operations and mission success. On this basis, this paper proposes an innovative methodology to support decision-making in VTOLs missions, emphasizing the importance of weather forecasting practices. The decision support methodology presented in this study involves four phases, which consider different timespans (i.e., from more than two weeks before up to two hours before the mission), eventually assessing dedicated feasibility indexes. A case study is proposed to show how the methodology could be implemented into a decision support system with the objective of guiding VTOL decision makers in identifying the most suitable vehicle to ensure successful operations in various contexts from innovative air mobility solutions towards industrial inspection practices.

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引用次数: 0

Examining university students’ preferences toward MaaS aspects

IF 3.9 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2025-02-05 DOI: 10.1016/j.trip.2025.101348

Willy Kriswardhana , Domokos Esztergár-Kiss

The main idea of Mobility as a Service, called MaaS, is to integrate various transport modes and services into one application. Although numerous studies investigate MaaS, there is only few research available on user preferences toward specific aspects. Therefore, current study presents a framework of variables associated with the aspects of MaaS from university students’ perspectives. The method of structural equation modeling is performed to reveal some connections between aspects of MaaS, socio-demographics, and attitudinal latent variables, where the users are clustered based on demographic factors and preferences. The relationship between the clusters is revealed by using multinomial logistic regression, and the preferences toward the MaaS aspects are clustered traditional and advanced aspects. The results show that employed students and persons having high incomes are more attracted to use MaaS, while female students are more inclined to pay for the trip by using ticket machines and cash. The relationship between the clusters indicates that male students coming from higher-income households show a higher interest in advanced aspects compared to low-income female students. This research can support planners and operators in the field of transportation in terms of providing more personalized design of MaaS applications.

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引用次数: 0

Regulatory, technical, and safety considerations for UAV-based inspection in chemical process plants: A systematic review of current practice and future directions

IF 3.9 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2025-02-03 DOI: 10.1016/j.trip.2025.101343

Sairul Safie, Raudhah Khairil

Chemical process plants require frequent inspection to ensure operational safety and prevent equipment failure. In recent years, the use of UAVs for inspecting chemical process plants has gained significant attention due to their ability to provide more efficient, cost-effective, and safer inspection services. This review article provides a comprehensive analysis of the current practice and future directions of UAV-based inspection in chemical process plants, with a focus on the regulatory, technical, and safety considerations. The review searched for studies on UAV standards in chemical process plants using multiple databases and specific keywords. Two stages of search were conducted, including a full-text review, and inclusion and exclusion criteria were applied to select relevant studies published in English between 2013 and 2023. Data on UAV standards were extracted, including benefits, limitations, national as well as international standards, challenges, and opportunities. A narrative synthesis approach was used to summarize the findings of the studies in a descriptive manner. The implications of this review are significant, as they provide a comprehensive understanding of the benefits and limitations of using UAVs for inspection in chemical process plants. The review highlights the need for continued research and development in this area to address technical and safety challenges and to facilitate wider adoption of UAV-based inspection technologies in chemical process plants.

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引用次数: 0

Investigating the involvement of public transport authorities in MaaS developments

IF 3.9 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2025-01-01 DOI: 10.1016/j.trip.2025.101337

Ibrahim Mubiru

In recent years, a novel mobility concept that is known as Mobility-as-a-Service (MaaS) has emerged in several metropolitan regions. MaaS is presently conceived as a decisive concept in shaping how mobility services are accessed by the users. The relevance of this mobility concept is depicted with various leverages, ranging from offering seamless mobility networks to providing sustainable mobility environments. However, what is still lacking in scholarly research is to scrutinise the level of involvement of public transport authorities in MaaS developments. Therefore, this study investigates the role of these authorities in MaaS plans in three German metropolitan areas namely Berlin, Hamburg, and the Ruhr region (Ruhrgebiet). The investigation is conducted through unfolding relevant literature by employing the thematic analysis method. The findings demonstrate that public transport authorities from the investigated case study areas have displayed visible efforts in integrating public transport forms (e.g., trains, trams and buses) with micro-mobility forms (e.g., bike-sharing) and car-sharing services. But contrarily, there are still challenges in incorporating the use of shared rides (e.g., ride-sharing and ride-sourcing) in their MaaS schemes, and thus, an integrative framework among public transport authorities, private mobility providers and policymakers has been proposed to smoothen the MaaS development process.

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引用次数: 0

Developing a strategic framework for airline destination selection: A multi-criteria decision-making approach applied to Turkish airlines

IF 3.9 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2025-01-01 DOI: 10.1016/j.trip.2025.101322

Filiz Mizrak , Kagan Cenk Mizrak , Gonca Reyhan Akkartal

The purpose of this study is to develop a comprehensive decision-making framework that airlines can use to strategically select new destinations, demonstrated here with a case application for Turkish Airlines. Addressing the complexities of route expansion, the study integrates the Entropy weighting method with the 2-Tuple Linguistic T-Spherical Fuzzy Decision by Opinion Score Method (2TLTS-FDOSM) to evaluate potential destinations across critical criteria, including market demand, economic impact, and regulatory environment. Data were collected from industry reports, expert evaluations, and publicly available aviation metrics to support a thorough and adaptable analysis. Findings from the Turkish Airlines case reveal San Antonio, TX (SAT), Portland, OR (PDX), and Nashville, TN (BNA) as top-ranked destinations, each offering distinct economic and operational benefits. This study contributes to aviation management literature by presenting a versatile, data-driven framework that can guide route selection for carriers in competitive markets. The framework’s ability to balance quantitative and qualitative insights underscores its potential for broader application in network planning, promoting sustainable growth within the aviation industry.

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引用次数: 0