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Fuelling the pandemic: The impact of fuel prices on COVID-19 为大流行病加油:燃料价格对 COVID-19 的影响
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-11-02 DOI: 10.1016/j.cstp.2024.101314
In 2022 the COVID-19 pandemic coincided with a surge in global fuel prices, particularly affecting Italy. This study explores the impact of rising fuel costs on public transportation usage and its influence on the spread of airborne viruses. As fuel prices increased, private vehicle users were incentivized to shift to public transportation, raising concerns about a potential rise in COVID-19 cases. Using a hybrid model with F-GLS estimators, we find that higher fuel prices are correlated with increased COVID-19 cases, though this effect diminishes with greater public transportation availability. We estimate that when public transportation capacity falls below 6,500 seats per capita per kilometre, case numbers rise. Thus, robust public transportation systems may help limit the spread of airborne viruses, while inadequate systems could exacerbate transmission.
2022 年,在 COVID-19 大流行的同时,全球燃料价格飙升,意大利受到的影响尤为严重。本研究探讨了燃料成本上升对公共交通使用的影响及其对空气传播病毒的影响。随着燃料价格上涨,私家车用户受到刺激而转向公共交通,这引发了人们对 COVID-19 病例可能增加的担忧。通过使用 F-GLS 估计器的混合模型,我们发现燃料价格上涨与 COVID-19 病例增加相关,但随着公共交通可用性的提高,这种影响会减弱。我们估计,当公共交通容量低于人均每公里 6,500 个座位时,病例数会上升。因此,强大的公共交通系统可能有助于限制空气传播病毒,而不完善的系统则可能加剧传播。
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引用次数: 0
COVID-19 and its influence on the propensity to work from home between March 2020 and June 2021 COVID-19 及其对 2020 年 3 月至 2021 年 6 月期间在家工作倾向的影响
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-11-02 DOI: 10.1016/j.cstp.2024.101319
The COVID-19 pandemic has had a significant impact on the world of work. With growing support and preference revelation from both employees and employers, we might anticipate a settling in of working from home around one to two days a week, varying by occupation depending on the ability to work remotely. Although there are a growing number of studies that have analysed data collected at a point in time or over time during the pandemic, there is now sufficient time and data to treat the waves of collected data as a repeated cross section that is jointly modelled to assess systematically, the changing roles of various influences on the proportion of working days that are worked from home. This paper estimates random effects regression models for the Greater Sydney Metropolitan Area and South-East Queensland over four waves of data collected in 2020 and 2021, where this last one represents a period with almost full vaccinations and minimum restrictions (i.e., ‘new normal’). By jointly estimating four waves of data within a single modelling framework, we are able to track the changing roles of the influences found to be statistically significant across the waves. The elasticity outputs reveal how these influences impact on the propensity to WFH, giving clues on whether we were starting to see a stabilisation of WFH activity mid-way in the pandemic period that can be reflective of a ‘new normal’. Results are very supportive of employees’ preferences, suggesting that those that feel the same or more productive when working from home relative to going to the office, are more likely to working from home relative to those that feel less productive.
COVID-19 大流行对工作领域产生了重大影响。随着雇员和雇主对在家工作的支持和偏好不断增加,我们可以预见,在家工作将逐渐成为一种趋势,每周大约有一到两天的时间在家工作,不同职业的情况会有所不同,这取决于远程工作的能力。尽管有越来越多的研究分析了在大流行期间某一时点或一段时间内收集到的数据,但现在有足够的时间和数据将收集到的数据作为一个重复的横截面来处理,并对其进行联合建模,以系统地评估各种影响因素对在家工作的工作日比例所起的不断变化的作用。本文估计了大悉尼都市区和昆士兰东南部在 2020 年和 2021 年收集的四波数据的随机效应回归模型,其中最后一波数据代表了几乎全面接种疫苗和最低限制(即 "新常态")的时期。通过在单一建模框架内对四波数据进行联合估算,我们能够跟踪在统计上具有显著意义的影响因素在各波数据中的作用变化。弹性输出结果揭示了这些影响因素对全职工作倾向的影响,为我们提供了线索,说明我们是否开始看到全职工作活动在大流行病中期趋于稳定,从而反映出一种 "新常态"。研究结果非常支持员工的偏好,表明那些在家工作时感觉与去办公室工作效率相同或更高的员工,相对于那些感觉工作效率较低的员工,更倾向于在家工作。
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引用次数: 0
Simulation modeling of passengers flow at airport terminals to reduce delay and enhance level of service 机场航站楼客流仿真建模,以减少延误并提高服务水平
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-10-29 DOI: 10.1016/j.cstp.2024.101312
Passenger delays are considered as global issues that influence the overall efficiency of an airport and competitiveness as well as restricting terminal developments. This paper studied Kuwait International Airport Terminal 4 (T4); a new expansion of the old airport. This study mainly aims to analyze the influence of the design on passenger flow in T4 and how it affected the capacity in addition to obtain a path for the passenger movement from the terminal entrance until they reach the gate of the aircraft and vice versa through CAST simulation model. The effect of the T4 design on the overall efficiency was found, the current flow conditions were analyzed and compared with the required Level of Service (LOS) and several developments and expansions were suggested. Passengers flow was studied to improve passenger experience, increase operational efficiencies, maximize retail revenues and increase security effectiveness. It was indicated that customs and security facilities require expansion in areas during peak hours to maintain a high level of performance. However, the check in premium showed the minimum gap between queue capacity and the declared queuing size indicating the high level of service in this area. The results revealed that immigration queueing requires expansion. Moreover, queuing area provision indicates no capacity issues to cope with maximum queue size. The provision of immigration counters according showed no adequate queuing space to cope with MQS. It is recommended to increase the number of economy check-in counters.
旅客延误被认为是影响机场整体效率和竞争力以及限制航站楼发展的全球性问题。本文研究的是科威特国际机场 4 号航站楼(T4),它是老机场的新扩建部分。本研究的主要目的是分析 T4 航站楼的设计对客流的影响,以及如何影响其容量,此外还通过 CAST 仿真模型获得乘客从航站楼入口到飞机登机口的移动路径,反之亦然。研究发现了 T4 航站楼设计对整体效率的影响,分析了当前的客流状况,并将其与要求的服务水平(LOS)进行了比较,同时提出了若干发展和扩建建议。对客流进行了研究,以改善乘客体验、提高运营效率、最大限度地增加零售收入并提高安检效率。研究表明,海关和安检设施需要在高峰时段进行扩建,以保持较高的服务水平。然而,值机手续费显示排队能力与申报排队人数之间的差距最小,表明该区域的服务水平较高。结果显示,出入境排队区需要扩建。此外,排队区的提供情况表明在应对最大排队人数方面没有能力问题。出入境柜台的设置显示没有足够的排队空间来应对最大排队人数。建议增加经济舱值机柜台的数量。
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引用次数: 0
Optimization of transport sustainability index to conserve resources: A case study of Delhi, India 优化交通可持续性指数以节约资源:印度德里案例研究
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-10-29 DOI: 10.1016/j.cstp.2024.101316
The objective of the study is to propose a methodology for optimization of Transport Sustainability Index (TSI) of National Capital Territory (NCT) of Delhi since maximum value of TSI i.e. 1.0 will occur when all the sustainability indicators attain their extremum values simultaneously, which is highly improbable. TSI is estimated using 29 most appropriate transport sustainability indicators under four pillars of sustainability, viz. environmental, social, economic, and technological. Optimization of TSI involves following steps, viz. identification of three independent variables, i.e. fuel consumption (X1), registered vehicles (X2) and population (X3) which influence all the indicators, data collection in respect of indicators and influencing variables for 30-year time period (from year 2000 to 2030), evolution of regression equations between indicators and influencing variables, and formulation of TSI as a multi-variate non-linear expression in terms of influencing variables, which is used for optimization. The generalized reduced gradient non-linear programming optimization technique is used to solve for the optimum values of influencing variables (X1opt, X2opt, X3opt) as 0.0988, 0.4709 & 0.0 respectively and optimum value of TSI (TSIopt) as 0.71, which is 25% higher than the TSI of 0.59 for the year 2023–24. The knowledge of optimum value of TSI would help the city transport policy planners to allocate, only that much quantum of infrastructural and financial resources so as to reach optimum rather than extremum values, which leads to potential savings or conservation of resources. An overall notional savings of 58% has been estimated by the study.
本研究的目的是提出一种优化德里国家首都区(NCT)交通可持续性指数(TSI)的方法,因为当所有可持续性指标同时达到极值时,TSI 的最大值即 1.0 将出现,而这是极不可能的。TSI 是根据可持续发展的四大支柱,即环境、社会、经济和技术,使用 29 个最合适的交通可持续发展指标进行估算的。TSI 的优化包括以下步骤:确定影响所有指标的三个自变量,即燃料消耗量(X1)、注册车辆数(X2)和人口数(X3);收集 30 年期间(从 2000 年到 2030 年)指标和影响变量的数据;建立指标和影响变量之间的回归方程;将 TSI 表述为影响变量的多变量非线性表达式,用于优化。利用广义梯度非线性编程优化技术,求解出影响变量的最优值(X1opt、X2opt、X3opt)分别为 0.0988、0.4709 & 0.0,TSI 的最优值(TSIopt)为 0.71,比 2023-24 年的 TSI 值 0.59 高出 25%。对 TSI 最佳值的了解将有助于城市交通政策规划者仅分配相应数量的基础设施和财政资源,以达到最佳而非极值,从而节省或保护潜在资源。研究估计,理论上可节省 58%的资源。
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引用次数: 0
The effect of airline service quality, perceived value, emotional attachment, and brand loyalty on passengers’ willingness to pay: The moderating role of airline origin 航空公司服务质量、感知价值、情感依恋和品牌忠诚度对乘客支付意愿的影响:航空公司来源的调节作用
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-10-28 DOI: 10.1016/j.cstp.2024.101313
Passengers’ willingness to pay (WTP) has become a critical factor for airlines, particularly during the current political and economic conditions that have led to a massive increase in airline ticket prices. Nevertheless, the current literature on passengers’ WTP has concentrated on economic models that address supply and demand determinants, while marketing and psychological determinants still need further investigation. Therefore, this study aims to investigate how airline service quality, perceived value, emotional attachment, and airline brand loyalty influence passengers’ WTP for airline services, and to what extent passengers’ perceptions of airline origin can moderate these effects. Data were gathered using questionnaires and were analyzed using confirmatory factor analysis (CFA), structural equation modelling (SEM), and multi-group analysis. The results revealed that airline service quality, perceived value, and brand loyalty significantly contribute to passengers’ WTP. It also proved that passengers’ biased perceptions towards national airlines can strengthen the positive effects of these variables on their WTP for national airlines and vice versa for their WTP for foreign airlines. Finally, the study presented several theoretical contributions to airline travel literature and practical implications for airline service marketers.
乘客的支付意愿(WTP)已成为航空公司的一个关键因素,尤其是在当前政治和经济形势导致机票价格大幅上涨的情况下。然而,目前有关乘客 WTP 的文献主要集中在解决供需决定因素的经济模型上,而营销和心理决定因素仍需进一步研究。因此,本研究旨在探讨航空公司服务质量、感知价值、情感依恋和航空公司品牌忠诚度如何影响乘客对航空公司服务的 WTP,以及乘客对航空公司起源的感知在多大程度上可以调节这些影响。研究使用问卷收集数据,并使用确证因子分析(CFA)、结构方程建模(SEM)和多组分析对数据进行分析。结果显示,航空公司服务质量、感知价值和品牌忠诚度对乘客的 WTP 有显著影响。研究还证明,乘客对本国航空公司的偏见会加强这些变量对其本国航空公司 WTP 的积极影响,反之亦然。最后,该研究为航空旅行文献提供了若干理论贡献,并对航空服务营销人员产生了实际影响。
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引用次数: 0
Policy interventions and urban characteristics in modeling electric vehicle charging infrastructure utilization 电动汽车充电基础设施利用模型中的政策干预和城市特征
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-10-23 DOI: 10.1016/j.cstp.2024.101309
The surge in electric vehicles adoption necessitates understanding the impact of policy interventions on public electric vehicle charging infrastructure in urban areas. This research investigates the influence of pricing frameworks on the usage of public charging facilities by analyzing both behavioral and spatial attributes of these infrastructures. Utilizing open data from Palo Alto, United States, this study employs descriptive statistical methods and interpretable machine learning approaches to scrutinize the relationship between policy initiatives and charging behaviors. The analysis underscores the significance of spatial attributes on charging behaviors. Policy interventions yield noticeable alterations in charging metrics, with locations near commercial hubs showing higher utilization, while local and frequent users resist fee adjustments. The research emphasizes the necessity for customized strategies to optimize infrastructure development and management, offering a framework for policymakers and stakeholders in sustainable urban transportation. Future research should explore similar interventions in diverse urban settings using real-time data and advanced optimization techniques to better tailor policies to the unique characteristics of specific facilities.
随着电动汽车采用率的激增,有必要了解政策干预对城市地区公共电动汽车充电基础设施的影响。本研究通过分析这些基础设施的行为和空间属性,调查定价框架对公共充电设施使用的影响。本研究利用美国帕洛阿尔托的开放数据,采用描述性统计方法和可解释的机器学习方法,仔细研究政策措施与充电行为之间的关系。分析强调了空间属性对充电行为的重要影响。政策干预使充电指标发生了明显变化,靠近商业中心的地点显示出更高的利用率,而本地用户和常客则抵制收费调整。这项研究强调了定制化战略优化基础设施开发和管理的必要性,为可持续城市交通领域的政策制定者和利益相关者提供了一个框架。未来的研究应利用实时数据和先进的优化技术,在不同的城市环境中探索类似的干预措施,以便更好地根据具体设施的独特性制定政策。
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引用次数: 0
When embracing gender equality endangers women: Experiences of public transport female conductors in Gweru Town, Zimbabwe 当拥抱性别平等危及妇女时:津巴布韦格韦鲁镇公共交通女售票员的经历
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-10-23 DOI: 10.1016/j.cstp.2024.101311
This article examines the experiences of female conductors in the public transport sector, particularly the parastatal, Zimbabwe United Passenger Company (ZUPCO) regarding gender equality and women empowerment using the case of Gweru town. It employs the concept of women empowerment as its analytical framework and is based on qualitative research methods involving in-depth interviews with 15 participants comprising female conductors and male drivers. The article argues that the implementation of gender equality policies in the public transport sector without addressing misogynistic attitudes driven by patriarchal norms endangers women rather than empowering them. It found that ZUPCO female conductors experienced humiliating informal initiation into the job, negative labelling, inability to reconcile work and family and sexual abuse and harassment, which undermined the noble goal of enhancing gender equality in the public transport sector. Regardless of these negative effects, female conductors also enjoyed some degree of empowerment through employment and monetary gain, which gave them economic independence. The article concludes that the negative outcomes of embracing gender equality through women’s employment in the public transport sector outweighed the benefits.
本文以格韦鲁镇为例,研究了公共运输部门,特别是半官方机构津巴布韦联合客运公司 (ZUPCO)的女售票员在性别平等和妇女赋权方面的经验。文章采用妇女赋权概念作为分析框架,并以定性研究方法为基础,对 15 名参与者(包括女售票员和男司机)进行了深入访谈。文章认为,在公共运输部门实施性别平等政策时,如果不解决由父权制规范驱动的厌女态度问题,就会危及妇女,而不是增强她们的权能。文章发现,ZUPCO 的女售票员经历了羞辱性的非正式入职、负面标签、无法兼顾工作和家庭以及性虐待和性骚扰,这些都破坏了在公共交通领域加强性别平等的崇高目标。尽管存在这些负面影响,但女售票员也通过就业和金钱收入在一定程度上获得了权力,从而实现了经济独立。文章的结论是,通过妇女在公共交通领域就业来实现性别平等的负面影响大于其带来的益处。
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引用次数: 0
A micro-network within the port for vessel anchorage selection decision support 港口内用于船舶锚地选择决策支持的微型网络
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-10-22 DOI: 10.1016/j.cstp.2024.101310
Upon arrival at ports, selecting the appropriate anchorage is a critical concern shared by ship captains and port managers. This study aims to exploit the rich geographic and semantic information embedded in historical ship trajectory data to construct a micro-network of port elements and employ network analysis techniques to mine spatial service relationships among port elements, thereby establishing an Anchorage Selection Decision Support (ASDS) model. This process involves extracting vessels’ dwell location information within ports from trajectory data and using this information and its sequence to establish an Anchorages-Berths Micro-Network (ABMN) in port. By applying association rule mining techniques, this research reveals the spatial service relationships within the micro-network between anchorages and berths, and integrates relevant indicators to develop the ASDS model. The aim is to help pilots of approaching vessels in making more rational anchorage choices, thus optimizing the operational efficiency of vessels in ports. The effectiveness of this approach has been validated through experiments conducted in the research region at the Nanjing port of the Yangtze River. This research is significant for exploring the correlation between port anchorages and berths, as well as for selecting appropriate anchorages for vessels arriving at the port.
抵达港口后,选择合适的锚地是船长和港口管理者共同关心的重要问题。本研究旨在利用历史船舶轨迹数据中蕴含的丰富地理和语义信息,构建港口要素微观网络,并运用网络分析技术挖掘港口要素之间的空间服务关系,从而建立锚地选择决策支持(ASDS)模型。这一过程包括从轨迹数据中提取船舶在港口内的停留位置信息,并利用这些信息及其序列建立港口锚地-泊位微网络(ABMN)。通过应用关联规则挖掘技术,本研究揭示了锚地和泊位微网络内的空间服务关系,并整合了相关指标以开发 ASDS 模型。其目的是帮助进港船舶引航员更合理地选择锚地,从而优化船舶在港口的运营效率。该方法的有效性已通过在长江南京港研究区域进行的实验得到验证。这项研究对于探索港口锚地与泊位之间的相关性,以及为到港船舶选择合适的锚地具有重要意义。
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引用次数: 0
Towards socially equitable public transport systems: The effect of COVID-19 on taxi trip behavior 实现社会公平的公共交通系统:COVID-19 对出租车出行行为的影响
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-10-15 DOI: 10.1016/j.cstp.2024.101305
The COVID-19 pandemic emerged as a very influential occurrence with a profound impact on a global scale. The onset of the pandemic abruptly disrupted the regular course of everyday activities, primarily impacting urban regions. Hence, it is imperative to understand the effects of the COVID-19 pandemic on modern urban areas. This study seeks to analyze the effect of the pandemic on travel behavior by utilizing GPS data obtained from taxis, with a specific focus on spatial socioeconomic features. The M2 metro line in Istanbul has been selected for evaluation. In this analysis, four distinct periods are considered: total, off-peak, morning, and evening peaks. The stations are categorized using K-means clustering. The estimation models are constructed using ordinary least squares (OLS), spatial autoregression (SAR), and geographically weighted regression (GWR) techniques, which are applied to the variation in daily average cab trips and the characteristics of stations. The GWR models provide superior performance in comparison to the other two models, with notable distinctions observed in peak times, particularly morning peak when compared to total and off-peak counts. The findings indicate that factors such as population, population density, socioeconomic status, and the quantity of shopping malls are influential variables in elucidating and forecasting the fluctuations in taxi trip counts.
COVID-19 大流行是一次极具影响力的事件,在全球范围内产生了深远的影响。大流行病的爆发突然打乱了日常活动的正常进程,主要影响到城市地区。因此,了解 COVID-19 大流行对现代城市地区的影响势在必行。本研究试图利用从出租车上获取的 GPS 数据分析大流行病对出行行为的影响,并特别关注空间社会经济特征。伊斯坦布尔的 M2 地铁线被选作评估对象。在分析中,考虑了四个不同的时段:总高峰、非高峰、早高峰和晚高峰。车站采用 K 均值聚类法进行分类。利用普通最小二乘法(OLS)、空间自回归(SAR)和地理加权回归(GWR)技术构建了估算模型,并将其应用于日均出租车出行量的变化和车站的特征。与其他两种模型相比,地理加权回归模型具有更优越的性能,在高峰时段,特别是早高峰与总计数和非高峰计数相比,观察到明显的差异。研究结果表明,人口、人口密度、社会经济地位和购物中心数量等因素是阐明和预测出租车出行次数波动的影响变量。
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引用次数: 0
Preferable price to buy an electric two-wheeled vehicle for college students 大学生购买电动两轮车的优惠价格
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-10-14 DOI: 10.1016/j.cstp.2024.101307
This research delves into the determinants affecting Taiwanese college students’ purchasing behavior towards two-wheeled electric vehicles (ETWVs) and the financial allocation they are willing to commit. A choice experiment design was utilized, with a sample of approximately 900 college students, regular users of two-wheeled gasoline vehicles (TWGs). The students engaged in one of two choice scenarios, presented with general characteristics, operational efficiency, vehicle cost, and subsidy strategies. Subsequent to the scenarios, respondents indicated their willingness to pay (WTP) for a ETWV. ETWVs, apart from being an emerging transportation alternative, also present potential environmental and health benefits due to reduced air pollution. The dependent inverse hyperbolic sine (IHS) double-hurdle model was employed, facilitating the accommodation of heteroscedasticity and correlated normality. The outcomes suggest that purchasing behavior for ETWVs among college students is shaped by factors such as purchase subsidy, tax breaks, and ETWVs’ capability in supporting students’ external travel requirements. The average WTP for ETWVs among this demographic stands at US$ 1,410. Importantly, the dependent IHS double-hurdle model, considering heteroscedasticity, proved statistically superior to its counterparts. Insights from this research offer crucial information on the price range students are likely to accommodate for ETWVs and provide a foundation for framing incentive-driven policies to amplify ETWV adoption.
本研究探讨了影响台湾大学生购买两轮电动车(ETWV)行为的决定因素以及他们愿意投入的资金分配。本研究采用了选择实验设计,以约 900 名经常使用两轮汽油车(TWGs)的大学生为样本。学生们在两种选择情景中选择一种,情景包括一般特征、运行效率、车辆成本和补贴策略。在情景模拟之后,受访者表示了他们对 ETWV 的支付意愿(WTP)。ETWV 除了是一种新兴的交通替代方式外,还能减少空气污染,带来潜在的环境和健康益处。研究采用了依赖性反双曲线正弦(IHS)双阶跃模型,以适应异方差和相关正态性。研究结果表明,大学生购买 ETWV 的行为受购买补贴、税收减免以及 ETWV 支持学生校外出行需求的能力等因素的影响。这一人群对 ETWV 的平均 WTP 为 1,410 美元。重要的是,考虑到异方差性,依赖性 IHS 双轮模型在统计上优于同类模型。这项研究提供了关于学生可能接受的 ETWV 价格范围的重要信息,并为制定激励性政策以扩大 ETWV 的采用提供了基础。
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引用次数: 0
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Case Studies on Transport Policy
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