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Analyzing shared e-scooter trip frequency on urban road segments in Austin, TX 分析德克萨斯州奥斯汀城市路段的共享电动滑板车出行频率
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-09-12 DOI: 10.1016/j.cstp.2024.101296

The expansion of e-scooter sharing system presents a mix of advantages and challenges to the urban transportation system. This research delves into the frequency of shared e-scooter trips on urban road segments in Austin, TX, leveraging a Random Forest model to dissect the influence of built environment and demographic variables on e-scooter trip frequencies. The model was then interpreted using Shapley Additive Explanations and Partial Dependence Plots. Results indicated that presence of bike lanes, distance to city center, violent crime, walkability, and land use are the most important variables. Notably, high shared e-scooter trip frequency often coincides with high incidence of violent crimes. The study further explores the non-linear relationships between e-scooter trip frequency and these key variables, revealing threshold effects and significant shifts in usage patterns. These insights offer valuable guidance for cities in the strategic development and regulation of shared e-scooter services.

电动滑板车共享系统的扩展给城市交通系统带来了优势和挑战。本研究深入探讨了德克萨斯州奥斯汀市城市路段的共享电动滑板车出行频率,利用随机森林模型剖析了建筑环境和人口变量对电动滑板车出行频率的影响。然后使用夏普利加性解释和部分依赖图对该模型进行解释。结果表明,自行车道的存在、与市中心的距离、暴力犯罪、步行能力和土地利用是最重要的变量。值得注意的是,共享电动滑板车的高出行频率往往与暴力犯罪的高发生率相吻合。该研究进一步探讨了电动滑板车出行频率与这些关键变量之间的非线性关系,揭示了使用模式的阈值效应和重大转变。这些见解为城市共享电动车服务的战略发展和监管提供了宝贵的指导。
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引用次数: 0
The link between transportation industry and transportation cryptocurrencies – A comparison among airline, rail, and shipping industries 运输业与运输加密货币之间的联系--航空、铁路和航运业之间的比较
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-09-10 DOI: 10.1016/j.cstp.2024.101295

This work examines the link between some of the most important transportation companies’ stock performance with the corresponding transportation cryptocurrencies. To do so, airlines, rail, and shipping companies’ stocks are investigated, examining for a probable link with the transportation cryptocurrencies, and also investigating the attributes of this link. The variable-Lag time-series causality is employed to test the channel of causality (if such exists), and the multifractal detrended cross-correlation analysis is utilized to investigate the relationship’s attributes. According to the results, the three transportation industries differ in the way they relate to transportation-related cryptocurrencies. More precisely, the transportation industries differ in the way they relate to transportation cryptocurrencies since airlines, and railway companies affect the price of the cryptocurrencies related to transportation, and cryptocurrencies also affect in a similar magnitude these fields. On the other hand, the shipping companies have a greater effect on the cryptocurrencies, while the cryptocurrencies in very few cases affect these stocks. Finally, a long-run relationship is identified, implying that transportation companies and the corresponding cryptocurrencies are positively and long-term related. The results important because they unveil a link between the transportation companies and the corresponding cryptocurrencies, with this link differing among these industries. This finding should be taken into account in the adoption of relevant technologies from the transportation field.

本作品研究了一些最重要的运输公司的股票表现与相应的运输加密货币之间的联系。为此,对航空公司、铁路和航运公司的股票进行了调查,研究其与交通加密货币之间的可能联系,并调查这种联系的属性。采用变量-滞后时间序列因果关系来检验因果关系的渠道(如果存在的话),并利用多分形去趋势交叉相关分析来研究这种关系的属性。结果显示,三个运输行业与运输相关加密货币的关系各不相同。更确切地说,运输行业与运输加密货币的关系不同,因为航空公司和铁路公司会影响与运输相关的加密货币的价格,而加密货币也会对这些领域产生类似程度的影响。另一方面,航运公司对加密货币的影响更大,而加密货币对这些股票的影响却很少。最后,还发现了一种长期关系,这意味着运输公司和相应的加密货币之间存在长期的正相关关系。这些结果非常重要,因为它们揭示了运输公司与相应加密货币之间的联系,而这种联系在这些行业中又有所不同。在采用运输领域的相关技术时,应考虑到这一发现。
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引用次数: 0
Cycling or Ropeway – Two Choices of Environmentally Friendly Urban Modes 自行车或索道--环保型城市交通的两种选择
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-09-06 DOI: 10.1016/j.cstp.2024.101291
Ropeways have proven to be a suitable extension to public transport in Latin American cities. Numerous ropeway projects are being discussed in Europe. These have not yet progressed beyond the planning stage because, among other reasons, no assessments of potential demand have been carried out. Current travel demand models do not consider mode-specific properties of ropeways and cycling competing with public transport. Based on a stated choice experiment, a mode choice model for people without car availability was estimated. Besides standard attributes like travel times and costs, the impact of mode-specific attributes like service rates, crowding, reliability, personal attitudes and weather conditions were tested. A Mixed-Logit model was estimated showing significant influence of these attributes on mode choice in Graz, an Austrian city with a mode share of 20% each for cyclists and public transport. The introduction of a ropeway can increase the share of public transport, as the high capacity and reliability of ropeways have a positive effect. However, it is unlikely that some groups of cyclists will use the ropeway, as travel time and cost are factors that are more important. The database and the modeling approaches can also be applied to other ropeway projects.
事实证明,索道是拉丁美洲城市公共交通的适当延伸。欧洲正在讨论许多索道项目。这些项目尚未进展到规划阶段,原因之一是尚未对潜在需求进行评估。目前的出行需求模型没有考虑索道和自行车与公共交通竞争的特定模式属性。根据既定的选择实验,我们估算了无车人群的出行方式选择模型。除了旅行时间和成本等标准属性外,还测试了服务率、拥挤程度、可靠性、个人态度和天气条件等特定模式属性的影响。在奥地利城市格拉茨,自行车和公共交通各占 20% 的出行比例。由于索道的高运量和可靠性具有积极作用,因此引入索道可以提高公共交通的比例。不过,一些骑自行车的群体不太可能使用索道,因为出行时间和成本是更重要的因素。数据库和建模方法也可应用于其他索道项目。
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引用次数: 0
Exploring the red tourism–aviation nexus through the PVAR model: The case of China during the COVID-19 pandemic 通过 PVAR 模型探索红色旅游与航空的关系:COVID-19 大流行期间的中国案例
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-09-05 DOI: 10.1016/j.cstp.2024.101288

The COVID-19 pandemic profoundly impacted the tourism and aviation sectors, leading to a shift from international to domestic travel, especially in China. Cultural tourism, including red tourism, was still active and played a pivotal role in China’s domestic tourism during the pandemic. This study used the panel vector autoregression (PVAR) model and the panel Granger causality test to investigate the interplay between red tourism, airline seat capacity, and the COVID-19 cases during the COVID-19 pandemic. This study contributed to the existing literature of the interplay (or the endogenous interaction) among these three endogenous variables. It found that red tourist numbers have significantly affected airline seat capacity in Chinese domestic market in the face of the disruptive effects of COVID-19. Red tourist numbers and airline seat capacity have the positive and negative relationships with the COVID-19 cases of origin cities but not at red tourism destinations. Although it primarily focuses on China’s red tourism, this study highlights avenues for cross-cultural exploration and a deeper understanding of the dynamic interplay among red tourism, aviation, and the impact of the COVID-19 pandemic. This study concludes by offering insights in developing and shaping cultural tourism and industry’s preparedness strategies, helping the tourism and aviation industries recover and thrive in the post-COVID-19 era.

COVID-19 大流行对旅游业和航空业产生了深远影响,导致旅游从国际旅游转向国内旅 游,尤其是在中国。大流行期间,包括红色旅游在内的文化旅游依然活跃,在中国国内旅游中发挥着举足轻重的作用。本研究利用面板向量自回归(PVAR)模型和面板格兰杰因果检验,研究了 COVID-19 大流行期间红色旅游、航空公司座位数和 COVID-19 案例之间的相互作用。该研究为现有文献中关于这三个内生变量之间相互作用(或内生互动)的研究做出了贡献。研究发现,面对 COVID-19 的破坏性影响,红色旅游人数极大地影响了中国国内市场的航空公司座位数。红色旅游人数和航空客座率与COVID-19对始发城市的影响存在正负关系,但与红色旅游目的地的影响无关。虽然本研究主要关注中国的红色旅游,但它强调了跨文化探索的途径,以及对红色旅游、航空和 COVID-19 流行病影响之间动态相互作用的更深入理解。最后,本研究为制定和塑造文化旅游和产业的备灾战略提供了见解,有助于旅游业和航空业在后 COVID-19 时代的恢复和繁荣。
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引用次数: 0
Shared benefits and sustainable mobility – A case of autonomous bus 共享效益和可持续交通--自动驾驶巴士案例
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-09-05 DOI: 10.1016/j.cstp.2024.101286

Prior research has found that people’s intentions to use autonomous technologies such as autonomous buses largely depend on factors like trust towards the technology, while little is known about the role played by the shared benefits. Unlike benefits obtained by the individual user of technologies, shared benefits are commonly societal benefits shared by users. We formulated hypotheses to explore the role of shared benefits in driving the use intention of autonomous buses and tested the model with survey data collected from people living in the greater Helsinki metropolitan area. We analyzed data using Covariance-based SEM, and our results show that perceived shared benefits are among the most vital indicators of autonomous bus use intention. To promote citizens’ acceptance of autonomous buses, the public transport authorities and bus operators should ensure that autonomous buses deliver shared benefits through service that is environmentally friendly, comfortable, easy to use, and accessible for all.

先前的研究发现,人们使用自动驾驶技术(如自动驾驶公交车)的意愿在很大程度上取决于对该技术的信任等因素,而对共享利益所起的作用却知之甚少。与技术用户个人获得的利益不同,共享利益通常是用户共享的社会利益。我们提出了一些假设,以探讨共享利益在推动自动驾驶巴士使用意向方面的作用,并利用从居住在大赫尔辛基都市区的人们那里收集到的调查数据对模型进行了测试。我们使用基于协方差的 SEM 对数据进行了分析,结果表明,感知到的共享利益是自动驾驶巴士使用意向的最重要指标之一。为了提高市民对自动驾驶公交车的接受度,公共交通机构和公交车运营商应确保自动驾驶公交车通过提供环保、舒适、易于使用、人人可及的服务来实现共同利益。
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引用次数: 0
Beyond polarisation and simplified storylines: Exploring discursive struggles over a transport infrastructure project in Vienna, Austria 超越两极分化和简化的故事情节:探索奥地利维也纳交通基础设施项目的话语斗争
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-09-05 DOI: 10.1016/j.cstp.2024.101293

Major transportation infrastructure projects are often associated with public disputes and polarised debates. However, by using the example of a controversial infrastructure project in Vienna (the “Lobau highway”), we show that a binary “pro-versus-con” framing does not do justice to the complex realities of such debates. Based on a Q methodological analysis, we reveal four distinct perspectives, which reflect a broad spectrum of “generally pro” and “generally against” positions: (i) More roads, more traffic, (ii) Less politics, more facts, (iii) Better roads, better city, and (iv) The highway must be built. While our analysis points at unexpected overlaps between perspectives and some entry points for consensus building, it also highlights disagreement on fundamental beliefs such as the impact of roads on the environment, the phenomenon of induced traffic, or the right to drive a car. Against this background, we discuss the wider socio-political context of the analysed debate, reflect on the basic premise of consensus building, and derive policy implications.

大型交通基础设施项目往往与公共争议和两极分化的辩论联系在一起。然而,我们以维也纳一个颇具争议的基础设施项目("洛保高速公路")为例,说明 "支持与反对 "的二元对立框架并不能公正地反映此类辩论的复杂现实。基于 Q 方法分析,我们揭示了四种截然不同的观点,它们反映了 "普遍支持 "和 "普遍反对 "的广泛立场:(i) 更多的道路,更多的交通;(ii) 更少的政治,更多的事实;(iii) 更好的道路,更好的城市;(iv) 必须修建高速公路。虽然我们的分析指出了观点之间意想不到的重叠以及建立共识的一些切入点,但也凸显了在道路对环境的影响、诱导交通现象或驾驶汽车的权利等基本信念上的分歧。在此背景下,我们讨论了所分析辩论的广泛社会政治背景,反思了建立共识的基本前提,并得出了政策含义。
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引用次数: 0
Activating the potential for more walking in work tour: An explorative study on car commuters 激活更多步行上班游的潜力:对开车上班族的探索性研究
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-09-02 DOI: 10.1016/j.cstp.2024.101290

This paper investigates the Potential for More Walking (PMW) in work tour among car commuters and proposes ways to encourage them to activate this potential. The study utilized a sample of 621 car commuters in the city of Qom, Iran, who expressed a willingness to replace their daily commute pattern with an alternative commute pattern that involves more walking time. The findings of the random effect binary logit model indicated that network patterns with improved connectivity in the residential neighborhood have a significant impact on activating the PMW. Additionally, subjective factors such as positive perceptions towards sidewalk conditions, longer distances between home and workplace, and positive attitudes towards walking were found to be associated with an increased tendency to activate the PMW. Moreover, the study assessed a set of transportation demand management measures that could influence individual behavior towards activating the PMW. The results indicated that pull measures are generally more effective than push measures in promoting walking during work commuting. Furthermore, the measures of turning streets with dense land-uses into pedestrian malls, increasing green spaces on sidewalks, and widening sidewalks were found to have the highest impact on activating the PMW, respectively.

本文调查了驾车通勤者在上班途中增加步行时间的潜力(PMW),并提出了鼓励他们激活这一潜力的方法。研究利用了伊朗库姆市的 621 名驾车通勤者作为样本,他们表示愿意用涉及更多步行时间的替代通勤模式取代日常通勤模式。随机效应二元对数模型的研究结果表明,改善居民区连通性的网络模式对激活 PMW 有显著影响。此外,研究还发现,对人行道条件的积极看法、家庭与工作场所之间的较远距离以及对步行的积极态度等主观因素,都与更倾向于启用 "步行小路 "有关。此外,该研究还评估了一套交通需求管理措施,这些措施可能会影响个人启用 PMW 的行为。结果表明,在促进上下班步行方面,拉动式措施通常比推动式措施更有效。此外,研究还发现,将用地密集的街道改造成步行街、增加人行道绿地和拓宽人行道等措施对激活 "预防性小型工程 "的影响最大。
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引用次数: 0
CODATU XVIII: Special Issue Editorial CODATU XVIII
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-09-01 DOI: 10.1016/j.cstp.2024.101218
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引用次数: 0
Strategic approaches to crisis management: Global challenges in the Turkish container shipping sector due to the COVID-19 危机管理的战略方法:土耳其集装箱航运业因 COVID-19 而面临的全球挑战
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-08-31 DOI: 10.1016/j.cstp.2024.101283

The Covid-19 pandemic has posed significant challenges to the sector, and Türkiye’s strategic location plays a crucial role in crisis management. This study aims to explore the repercussions of the pandemic on the sector and propose appropriate solutions. To identify the most effective solutions for prioritizing the challenges posed by Covid-19, 53 sector experts participated in the study. The Stepwise Weight Assessment Ratio Analysis method was used to weigh the criteria representing these challenges. The solutions were ranked using the Weighted Aggregated Sum Product Assessment and Combined Compromise Solution methods. The results indicate that the primary challenge is the increased shipping cost, followed by the prolongation of the transport time, global-scale impacts, and port congestion. The most appropriate solution identified was alternative vessel loading, followed by mixed-mode transportation usage, reservation guarantees, long-term contracts with shipping operators, integrated logistics services, container purchases, and technological integration.

Covid-19 大流行给该行业带来了重大挑战,而土耳其的战略位置在危机管理中发挥着至关重要的作用。本研究旨在探讨大流行病对该行业的影响,并提出适当的解决方案。为了确定最有效的解决方案,优先应对 Covid-19 带来的挑战,53 位行业专家参与了研究。采用逐步加权评估比率分析法对代表这些挑战的标准进行了权衡。使用加权汇总产品评估法和综合折衷解决方案法对解决方案进行了排序。结果表明,首要挑战是运输成本的增加,其次是运输时间的延长、全球范围的影响和港口拥堵。最合适的解决方案是替代装船,其次是混合运输方式、预约担保、与航运运营商签订长期合同、综合物流服务、集装箱采购和技术整合。
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引用次数: 0
Impact assessment of future fleet compositions in vehicle emissions in urban areas: A methodological framework and a case study 未来车队组成对城市地区汽车尾气排放的影响评估:方法框架和案例研究
IF 2.4 Q3 TRANSPORTATION Pub Date : 2024-08-29 DOI: 10.1016/j.cstp.2024.101285

This study explores the impact of emerging vehicle technologies on direct urban traffic emissions. It investigates emission reduction potential from shifts in fleet compositions and modal choices, especially considering climate change. To achieve this, three key research areas are explored for historical, current, and future scenarios (up to 2050): mode choice, emission factors for different vehicle categories, and diverse vehicle propulsion technologies. The estimation of the modal split is pivotal, developing a methodology utilizing Stated Preference survey data, discrete choice modeling, Monte Carlo simulations, and macroscopic traffic simulations. Future scenarios derive from the reference year’s modal split, and emission factors and fleet compositions are predetermined via an extensive literature review, aiding the assessment of their respective emissions. A subsequent sensitivity analysis identifies the impact of specific parameters on emissions, guiding future research focus. Study results underscore differences in greenhouse gas emissions and primary air pollutants between base and future scenarios.

本研究探讨了新兴汽车技术对城市交通直接排放的影响。它调查了车队组成和模式选择的变化所带来的减排潜力,特别是考虑到气候变化。为此,本研究针对历史、当前和未来(至 2050 年)情景,探讨了三个关键研究领域:模式选择、不同车辆类别的排放系数和多样化的车辆推进技术。其中,模式选择的估算至关重要,它利用陈述偏好调查数据、离散选择建模、蒙特卡洛模拟和宏观交通模拟来制定方法。未来情景源自参考年的模式划分,排放因子和车队组成是通过广泛的文献审查预先确定的,有助于评估各自的排放量。随后的敏感性分析确定了特定参数对排放量的影响,为未来的研究重点提供了指导。研究结果强调了基本方案和未来方案之间在温室气体排放和主要空气污染物方面的差异。
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引用次数: 0
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Case Studies on Transport Policy
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