Transportation Research Part A-Policy and Practice最新文献

Multi-dimensional inequality and rail transportation access: a comparative study across three generations 多维不平等与轨道交通可及性：跨三代的比较研究

IF 6.8 1区工程技术 Q1 ECONOMICS

Transportation Research Part A-Policy and Practice

Pub Date : 2025-12-13 DOI: 10.1016/j.tra.2025.104833

Thanapong Champahom , Dissakoon Chonsalasin , Sajjakaj Jomnonkwao , Vatanavongs Ratanavaraha

Transportation equity remains a critical challenge in developing countries, yet limited research examines how different generations experience inequality in railway access. This study investigates how seven dimensions of inequality—cultural, spatial, social, political, knowledge, economic, and environmental—influence railway accessibility across three generations in Thailand. Data were collected from 1,677 respondents (Generation X: 397, Generation Y: 441, Generation Z: 839) and analyzed using measurement invariance to test and compare relationships between inequality dimensions and three accessibility factors across generations: access to rail stations, safety in rail travel, and affordability of rail services. Overall, the hypothesized relationships between inequality dimensions and accessibility factors were confirmed, demonstrating universal relevance across generations. However, significant generational variations emerged: Generation X showed exceptional sensitivity to cultural inequality’s impact on affordability (β = 0.532), Generation Y demonstrated balanced responses across all dimensions (β range: 0.110–0.213), and Generation Z exhibited heightened safety consciousness despite greater affordability resilience. Access to stations and affordability explained substantially more variance than safety concerns. This study contributes the first empirical evidence of generational differences in transportation inequality perceptions, providing a framework for generation-specific policy interventions to enhance railway accessibility and equity.

在发展中国家，交通公平仍然是一个严峻的挑战，然而，关于不同代人在铁路通行方面如何经历不平等的研究有限。本研究调查了文化、空间、社会、政治、知识、经济和环境等七个维度的不平等如何影响泰国三代人的铁路可达性。数据收集自1677名受访者（X一代：397人，Y一代：441人，Z一代：839人），并使用测量不变性进行分析，以测试和比较不平等维度与三种代际可达性因素之间的关系：火车站的可达性、铁路旅行的安全性和铁路服务的可负担性。总体而言，不平等维度与可达性因素之间的假设关系得到了证实，显示出跨代的普遍相关性。然而，显著的代际差异出现了：X一代对文化不平等对负担能力的影响表现出异常的敏感性（β = 0.532）， Y一代在所有维度上表现出平衡的反应（β范围：0.110-0.213），Z一代表现出更高的安全意识，尽管负担能力更强。与安全问题相比，进入车站的便利性和可负担性解释了更多的差异。本研究首次提供了交通不平等认知代际差异的实证证据，为提高铁路可达性和公平性的代际政策干预提供了框架。

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引用次数: 0

The optimal government policy towards carpooling market: A differential game analysis considering carbon emission reduction 政府对拼车市场的最优政策：考虑碳减排的差分博弈分析

IF 6.8 1区工程技术 Q1 ECONOMICS

Transportation Research Part A-Policy and Practice

Pub Date : 2025-12-12 DOI: 10.1016/j.tra.2025.104816

Chuan Zhao , Yiran Sun , Jiahui Ding , Kun Wang

As an emerging mode of shared mobility, carpooling can shorten the total urban transport mileage, thereby reduce the overall carbon emission in the e-hailing industry. However, the lack of public interest and ambiguous promotional strategies towards carpooling, profitability concerns from the e-hailing company, and ineffective government policies, contribute to a low adoption rate. It is imperative to present a clear view on how the government interact with the e-hailing company and how to foster their collaboration to reduce carbon emissions while providing enough financial incentives to the carpooling company. This research formulates a theoretical framework of dynamic-differential-game to analyze how the promotion initiative, R&D effort, reward mechanism, subsidy to the e-hailing company as well as to the passenger affect the dynamic trajectory of the carpooling market and the emission reduction under different policies. The results show that: (1) The benefits of emission reduction and the price per kilometer positively enhance the promotion of carpooling. The costs of promoting, and passengers’ reliance on private e-hailing options, can hinder the promotion; (2) While cost-sharing can encourage the e-hailing company to improve carpooling efficiency, carpooling passenger subsidies more directly boost user demand and are more effective in reducing emissions; (3) To maximize profitability, the e-hailing company should slightly intensify its effort in carpooling technology R&D; (4) The policies have a positive impact on emission reduction, but when the policies become overly generous, the overall benefit of the government and the e-hailing company will show a downward trend.

拼车作为一种新兴的共享出行方式，可以缩短城市交通总里程，从而降低网约车行业的整体碳排放。然而，对拼车缺乏公众兴趣和模棱两可的推广策略、网约车公司对盈利能力的担忧以及无效的政府政策，都导致了低采用率。当务之急是明确政府如何与网约车公司互动，以及如何促进他们的合作，以减少碳排放，同时为拼车公司提供足够的财政激励。本文构建了动态差分博弈的理论框架，分析了在不同政策下，推广主动、研发努力、奖励机制、对网约车公司和乘客的补贴对拼车市场动态轨迹和减排的影响。结果表明：(1)减排效益和每公里价格正增强了拼车的推广效果。推广的成本和乘客对私人网约车的依赖可能会阻碍推广；(2)成本分担能激励网约车公司提高拼车效率，拼车乘客补贴更直接拉动用户需求，减排效果更显著；(3)为实现盈利最大化，网约车公司应略微加大拼车技术研发力度；(4)政策对减排有积极影响，但当政策过于慷慨时，政府和网约车公司的整体效益将呈现下降趋势。

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引用次数: 0

Can transport infrastructure really facilitate economic activity concentration? A spatial and temporal spillover perspective 交通基础设施真的能促进经济活动的集中吗？时空溢出效应视角

IF 6.8 1区工程技术 Q1 ECONOMICS

Transportation Research Part A-Policy and Practice

Pub Date : 2025-12-12 DOI: 10.1016/j.tra.2025.104831

Xiang Liu , Robin Hickman , Mengqiu Cao , Yinhua Tao

A key unresolved research question in the field of transport and city planning is whether investment in transport infrastructure effectively affects the spatial concentration of economic activity within a city. The question becomes even more complex due to the spatial and temporal spillover effects of transport infrastructure on economic activities, as well as the variations in types of transport infrastructure and categories of economic activity. With long-term and fine-grained geospatial data, this study uses the spatial dynamic panel data approach to examine the relationship between transport infrastructure and economic activity concentration in Shanghai from 2005 to 2015. The results reveal that proximity to metro stations is more strongly associated with the concentration of service activities, whereas highways exert a more sustained and spatially extensive influence on the concentration of manufacturing activities. The findings highlight the significant yet heterogeneous impacts of transport infrastructure on urban economic spatial patterns.

交通与城市规划领域一个尚未解决的关键研究问题是，交通基础设施投资是否有效影响城市内经济活动的空间集中。由于运输基础设施对经济活动的空间和时间溢出效应，以及运输基础设施类型和经济活动类别的变化，这个问题变得更加复杂。利用长期、细粒度的地理空间数据，采用空间动态面板数据方法，研究了2005 - 2015年上海市交通基础设施与经济活动集中度的关系。结果表明，靠近地铁站与服务业活动集中度的关系更为密切，而高速公路对制造业活动集中度的影响则更为持久和广泛。研究结果强调了交通基础设施对城市经济空间格局的显著而异质性的影响。

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引用次数: 0

Overall topological accessibility index (OTAI): A proposed indicator of urban transportation accessibility 总体拓扑可达性指数（OTAI）：提出的城市交通可达性指标

IF 6.8 1区工程技术 Q1 ECONOMICS

Transportation Research Part A-Policy and Practice

Pub Date : 2025-12-12 DOI: 10.1016/j.tra.2025.104832

Augusto Franco de Lima, Afonso de Paula dos Santos, Marcos Vinicius Sanches Abreu, Taciano Oliveira da Silva, Emerson Cordeiro Lopes, Gustavo Henrique Nalon, Klaus Henrique de Paula Rodrigues

The rapid and selective urbanization process leads to a series of socioeconomic and environmental problems related to urban mobility. The literature lacks a robust approach that integrates various urban mobility dimensions, as traditional methods for assessing the accessibility and connectivity of transportation networks often yield inconsistent results. In addition, the city of Viçosa (Minas Gerais, Brazil) requires a comprehensive evaluation of accessibility and connectivity in its primary and secondary road networks. To address these knowledge gaps, this study proposes and evaluates a new indicator called Overall Topological Accessibility Index (OTAI), designed to identify the most and least accessible regions of a city. This indicator combines the Connectivity Matrix, Associated Number, and Number of Indirect Links methods. To validate the proposed methodology, nine different network models were generated for Viçosa’s road system and subsequently transformed into topologically connected networks suitable for calculating connectivity and accessibility parameters. The results provided a holistic evaluation of urban accessibility and connectivity, in addition to a comprehensive analysis of the effects of various modifications to the road network, such as the implementation of ring roads. Non-central roads, network extremities, and one-way streets demonstrated low accessibility. The inclusion of a ring road resulted in a negligible improvement in the Connectivity Index of the road network but increased the OTAI of nearby roads. In conclusion, the OTAI proved to be a robust and accurate tool for a more integrated assessment of urban accessibility and connectivity, enabling targeted changes that promote transportation sustainability.

快速和选择性的城市化进程导致了一系列与城市流动性相关的社会经济和环境问题。由于评估交通网络的可达性和连通性的传统方法往往产生不一致的结果，因此文献中缺乏整合各种城市流动性维度的可靠方法。此外，巴西米纳斯吉拉斯市（Minas Gerais）要求对其一级和二级道路网络的可达性和连通性进行全面评估。为了解决这些知识差距，本研究提出并评估了一个名为“总体拓扑可达性指数”（OTAI）的新指标，旨在确定城市中可达性最高和最低的区域。该指标综合了“连接矩阵”、“关联数”和“间接链路数”三种方法。为了验证所提出的方法，为viosa的道路系统生成了9个不同的网络模型，并随后将其转换为适合计算连通性和可达性参数的拓扑连接网络。研究结果对城市可达性和连通性进行了全面评估，并对各种道路网络改造（如环路的实施）的影响进行了综合分析。非中心道路、网络末端和单行道的可达性较低。环路的加入对路网连通性指数的改善微不足道，但增加了附近道路的OTAI。总之，OTAI被证明是一个强大而准确的工具，可以更全面地评估城市可达性和连通性，实现有针对性的变化，促进交通的可持续性。

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引用次数: 0

Between conviction and convenience: Shared social perspectives and shifting intentions among car commuters 在信念和便利之间：共享的社会观点和汽车通勤者的转变意图

IF 6.8 1区工程技术 Q1 ECONOMICS

Transportation Research Part A-Policy and Practice

Pub Date : 2025-12-11 DOI: 10.1016/j.tra.2025.104830

Katharina E. Trimmel , Peter Obersteiner , Michael Kriechbaum , Eva Fleiß , Thomas Brudermann

Interventions to reduce car use and foster sustainable mobility remain largely unsuccessful as commuters resist mode shifts and oppose restrictive transport policies. To better understand this resistance, we combine a Q methodological analysis and a follow-up quantitative survey (Q2S, n = 947) to discern social perspectives, individual characteristics and mode shift intentions among Austrian car commuters. Findings reveal three distinct car commuter perspectives. Eco-conscious commuters are characterised by strong environmental consciousness and more negative attitudes towards car use but perceive a high degree of car dependence. Car-enthusiastic commuters enjoy the advantages of car use, disregard environmental impacts and resist mode shifts. Pragmatic commuters demonstrate neither high levels of environmental concern nor a high dependence on cars. Instead, their commuting mode choice seems highly influenced by cost-benefit-thinking. Quantitative survey results demonstrate a nearly equal number of supporters for the different perspectives. Support for the car-enthusiastic perspective correlates with positive car attitudes, a conservative political orientation, more car use, stronger car use habits, less concern about climate change, negative views about alternatives and lower mode shift intentions. In contrast, the rating of the eco-conscious perspective shows nearly opposite correlations. The correlations of the rating of the pragmatic perspective follow a similar pattern to those of the eco-conscious perspective but are generally weaker. Overall mode shift intentions are low, underlining the broader systemic issue of a deeply entrenched car-dominant mobility system. This research underscores the complex interplay between individual decision-making and shared meaning in occupational commuting.

由于通勤者抵制模式转变和反对限制性交通政策，减少汽车使用和促进可持续交通的干预措施在很大程度上仍然不成功。为了更好地理解这种抗拒，我们结合Q方法分析和后续定量调查（Q2S, n = 947）来辨别奥地利汽车通勤者的社会视角、个人特征和模式转换意图。研究结果揭示了三种截然不同的乘车通勤视角。生态意识通勤者的特点是环境意识较强，对汽车的使用态度较消极，但对汽车的依赖程度较高。热爱汽车的通勤者享受着使用汽车的好处，无视环境影响，抵制模式转变。务实的通勤者既没有表现出对环境的高度关注，也没有表现出对汽车的高度依赖。相反，他们的通勤方式选择似乎受到成本效益思维的高度影响。定量调查结果显示，支持不同观点的人数几乎相等。对汽车狂热观点的支持与积极的汽车态度、保守的政治取向、更多的汽车使用、更强的汽车使用习惯、对气候变化的关注较少、对替代方案的负面看法和较低的模式转换意图相关。相比之下，生态意识观点的评级显示出几乎相反的相关性。实用主义观点评级的相关性遵循与生态意识观点相似的模式，但通常较弱。总体而言，人们对模式转变的意愿很低，这凸显了汽车主导的出行系统根深蒂固的更广泛的系统性问题。本研究强调了职业通勤中个人决策与共享意义之间复杂的相互作用。

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引用次数: 0

Vehicle choice and use under alternative policy scenarios: What needs to be done to promote electric vehicle uptake and usage 在不同政策情景下的车辆选择和使用：需要做些什么来促进电动汽车的吸收和使用

IF 6.8 1区工程技术 Q1 ECONOMICS

Transportation Research Part A-Policy and Practice

Pub Date : 2025-12-11 DOI: 10.1016/j.tra.2025.104819

Andrea Pellegrini , John M. Rose

The aim of this study is to evaluate the determinants affecting two interrelated discrete and continuous decisions that households typically make when purchasing a new vehicle, consisting of vehicle type choice and their usage. To this end, we develop a double hurdle model that explicitly accounts for mixed nature of the choices under investigation. The proposed methodological approach is applied to a discrete choice experiment primarily designed to elicit New South Wales (Australia) residents’ preferences for alternative fuelled vehicles. Evidence from the empirical analysis suggests that respondents are more inclined to acquire fuel efficient automobiles relative to passenger vehicles powered by petrol, with battery electric cars being the most preferable purchase option. Nevertheless, the model shows that respondents still prefer driving conventional vehicles longer, with petrol automobiles being the fuel type car associated with the highest kilometres driven. Finally, given the model parameter estimates, this study undertakes a simulation exercise to explore how the New South Wales automobile market will evolve under different policy settings. The modelling predictions suggest that lowering the purchase price of plug-in hybrid-electric and battery electric vehicles below that of all other vehicle fuel types will give rise to more electric vehicles on roads compared to a faster charging time of home stations.

本研究的目的是评估影响家庭在购买新车时通常做出的两个相互关联的离散和连续决策的决定因素，包括车辆类型选择及其使用。为此，我们开发了一个双障碍模型，明确地说明了所调查选择的混合性质。提出的方法方法应用于一个离散选择实验，主要是为了引出新南威尔士州（澳大利亚）居民对替代燃料汽车的偏好。实证分析的证据表明，受访者更倾向于购买燃油效率高的汽车，而不是汽油驱动的乘用车，其中电池电动汽车是最可取的购买选择。尽管如此，该模型显示，受访者仍然更喜欢驾驶传统汽车的时间更长，汽油车是与行驶里程最高相关的燃油类型汽车。最后，根据模型参数估计，本研究进行了模拟练习，以探索新南威尔士州汽车市场在不同政策设置下将如何演变。模型预测表明，将插电式混合动力汽车和纯电动汽车的购买价格降低到低于所有其他燃料类型的汽车的购买价格，将会增加道路上的电动汽车数量，而家庭充电站的充电时间则更快。

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引用次数: 0

A dual-analytic approach to reveal core determinants of public transport modal share and policy priorities 揭示公共交通模式份额和政策优先级的核心决定因素的双重分析方法

IF 6.8 1区工程技术 Q1 ECONOMICS

Transportation Research Part A-Policy and Practice

Pub Date : 2025-12-09 DOI: 10.1016/j.tra.2025.104810

Juho Lee , Ryujeong Lee , Sion Kim , Juhyeon Kwak , Seungjae Lee

Public transportation offers a key means of alleviating urban congestion and pollution in the face of climate change. However, simply enhancing transit services often fails to increase modal share if critical bottlenecks remain unresolved. To address this by distinguishing between what is sufficient and what is necessary, this study combines partial least squares structural equation modeling (PLS-SEM) and necessary condition analysis (NCA), integrating local governments’ ex post transportation evaluation systems, to identify both the sufficient bundles and the necessary prerequisites affecting public transportation modal share. The analysis reveals that key transit attributes, including bus frequency and user satisfaction are pivotal in increasing modal share and thus serve as bottleneck indicators. Conversely, high levels of automobile usage negatively affect the modal share of public transportation, indicating that these must be curtailed to reach medium and high targets. We also find that falling below certain safety and environmental benchmarks significantly constrains any improvement in transit use. Moreover, results suggest a positive feedback loop: municipalities with higher shares of public transportation tend to receive larger transportation budgets in the following year, implying that effective transit policies can yield tangible fiscal benefits. By quantifying both sufficiency and necessity, this study introduces a policy-feedback diagnostic, combining PLS-SEM and NCA, that provides empirical guidance for local governments to set funding gates (minimum standards) and a sequenced investment order for the most impactful interventions.

面对气候变化，公共交通是缓解城市拥堵和污染的关键手段。然而，如果关键瓶颈仍未解决，仅仅加强过境服务往往无法增加运输方式的份额。为了通过区分什么是足够的和什么是必要的来解决这个问题，本研究结合了偏最小二乘结构方程模型（PLS-SEM）和必要条件分析（NCA），整合了地方政府的事后运输评估系统，以确定影响公共交通模式份额的足够束和必要先决条件。分析表明，公交频率和用户满意度等关键交通属性是增加公交模式共享的关键，因此可以作为瓶颈指标。相反，高水平的汽车使用对公共交通的模式份额产生负面影响，表明必须减少这些，以达到中高目标。我们还发现，低于某些安全和环境基准会严重限制交通使用的任何改善。此外，研究结果还表明了一个积极的反馈循环：公共交通份额较高的城市往往在接下来的一年里获得更多的交通预算，这意味着有效的交通政策可以产生切实的财政效益。通过量化充分性和必要性，本研究引入了一种政策反馈诊断方法，结合PLS-SEM和NCA，为地方政府设定资金门槛（最低标准）和最有效干预措施的投资顺序提供了经验指导。

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引用次数: 0

Evaluating residents’ travel pattern shifts after the opening of new URT lines: Insights from a changes-in-changes model 评估新轨道交通线路开通后居民出行模式的转变：来自变化中的变化模型的见解

IF 6.8 1区工程技术 Q1 ECONOMICS

Transportation Research Part A-Policy and Practice

Pub Date : 2025-12-09 DOI: 10.1016/j.tra.2025.104823

Shichao Sun , Pingye Wang , Kaiyu Zhang , Ying Hui

This study develops an extended Changes-in-Changes (CIC) framework to investigate the impacts of urban rail transit (URT) line openings on residents’ travel pattern. The extended CIC model allows for analysis of distributional effects across residents with different levels of travel activity, as well as multidimensional interaction effects spanning socio-demographic dimensions, time, and space. Using a case study of Hangzhou, China, the research incorporates longitudinal anonymized mobile phone signaling data. By focusing on residents living within the service catchment areas of newly opened URT stations, the study compares travel behavior before and after the line openings to identify nuanced behavioral shifts. Quantile-effect analysis reveals substantial distributional heterogeneity: low-mobility residents gain disproportionate accessibility benefits, while high-mobility groups optimize efficiency by replacing the long-distance trips with URT-accessible destinations or adopting URT-feeder modes, demonstrating URT’s dual role in reducing exclusion and enhancing efficiency. Temporal patterns reveal divergent adaptation: low-mobility groups initially face commute time increases due to last-mile barriers but later sustain spatial expansion and reverse time trends (with the feeder system improvements), while the high-mobility residents’ spatial contraction diminishes, showing distinct long-term pathways. Spatial and gender disparities reveal URT lines’ equity impacts. Suburban residents show greater improvements in activity radius, commute time, and travel distance than urban-core counterparts, underscoring URT’s role in promoting spatial equity. Urban-core URT benefits are gender-neutral, but suburban men experience significantly greater mobility gains than women due to differing caregiving responsibilities. Surprisingly, the suburban men show no advantage in commute time, likely constrained by persistent car culture. These structural and symbolic barriers collectively sustain transit inequities. Based on the findings, practical guidance is provided for developing targeted URT development strategies that address both spatial and gender disparities.

本研究建立了一个扩展的“变化中的变化”（change -in- change， CIC）框架，探讨城市轨道交通线路开通对居民出行模式的影响。扩展的CIC模型允许分析不同旅行活动水平的居民的分布效应，以及跨越社会人口维度、时间和空间的多维互动效应。本研究以中国杭州为例，采用纵向匿名手机信令数据。通过关注新开通的轨道交通站点服务集水区内的居民，该研究比较了线路开通前后的出行行为，以确定细微的行为变化。分位效应分析揭示了显著的分布异质性：低流动性居民获得了不成比例的可达性效益，而高流动性群体通过将长途出行替代为可达性目的地或采用可达性馈线模式来优化效率，体现了城市交通在减少排他性和提高效率方面的双重作用。时间模式显示出不同的适应：低流动性群体最初由于最后一英里障碍而面临通勤时间的增加，但随后维持空间扩张并逆转时间趋势（随着馈线系统的改善），而高流动性居民的空间收缩减少，表现出明显的长期路径。空间和性别差异揭示了城市轨道交通线路对公平性的影响。郊区居民在活动半径、通勤时间和出行距离方面都比城市核心居民有更大的改善，这凸显了城市轨道交通在促进空间公平方面的作用。城市核心城市轨道交通的好处是中性的，但由于照顾责任的不同，郊区男性比女性获得了更大的流动性收益。令人惊讶的是，郊区男性在通勤时间上没有表现出任何优势，可能是受到持续的汽车文化的限制。这些结构性和象征性障碍共同维持了过境不平等。根据研究结果，为制定有针对性的城市轨道交通发展战略提供了实用指导，以解决空间和性别差异。

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引用次数: 0

Willingness to pay for voluntary airline carbon offsets and sustainable aviation fuel 自愿支付航空公司碳补偿和可持续航空燃料的意愿

IF 6.8 1区工程技术 Q1 ECONOMICS

Transportation Research Part A-Policy and Practice

Pub Date : 2025-12-08 DOI: 10.1016/j.tra.2025.104824

David C. Li, Matthew John Beck, Rico Merkert

While arguing that voluntary carbon offsetting (VCO) and sustainable aviation fuel (SAF) will continue to play a vital role in the context of airline decarbonization in the future, this paper reveals “low-hanging-fruit” opportunities for airlines to improve the adoption rate of their VCO programs and policy recommendations to make SAF adoption more realistic today. Using a stated preference choice experiment with 1,001 respondents from Australia and New Zealand, we show the value of offering digital information on the carbon offset project purposes, especially those associated with environmental damage repairments and investments into sustainable energy productions. We further explain heterogeneity in preferences for VCOs through socio-demographic differences in the sample. While our results suggest a continued strong willingness to fly, our estimated willing-to-pay (WTP) values for SAF “book and claim” remains relatively low. We highlight the significant gap between the consumers’ WTP and the actual cost of SAF. This gap represents a critical challenge for the airline industry, particularly in light of upcoming policy mandates for SAF usage (e.g., the UK from 2025). Without additional government support, such mandates may pose substantial risks to both airline viability and consumer mobility. We offer recommendations to inform future policy development and effective airline decarbonization strategies.

虽然认为自愿碳抵消（VCO）和可持续航空燃料（SAF）将继续在未来航空公司脱碳的背景下发挥至关重要的作用，但本文揭示了航空公司提高其VCO计划采用率的“容易实现的”机会和政策建议，以使SAF的采用在今天更加现实。通过对来自澳大利亚和新西兰的1001名受访者进行的既定偏好选择实验，我们展示了提供有关碳抵消项目目的的数字信息的价值，特别是那些与环境损害修复和可持续能源生产投资相关的信息。我们通过样本中的社会人口统计学差异进一步解释了vco偏好的异质性。虽然我们的研究结果表明人们有持续强烈的飞行意愿，但我们对SAF“账面和索赔”的估计支付意愿（WTP）值仍然相对较低。我们强调了消费者的WTP和SAF的实际成本之间的巨大差距。这一差距对航空业来说是一个严峻的挑战，特别是考虑到即将出台的SAF使用政策要求（例如，英国从2025年开始）。如果没有额外的政府支持，这些规定可能会对航空公司的生存能力和消费者的流动性构成重大风险。我们提供建议，为未来的政策制定和有效的航空公司脱碳战略提供信息。

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引用次数: 0

Examining the dynamics of electric vehicle adoption using Malmquist-DEA: evidence from an emerging economy 使用Malmquist-DEA检查电动汽车采用的动态：来自新兴经济体的证据

IF 6.8 1区工程技术 Q1 ECONOMICS

Transportation Research Part A-Policy and Practice

Pub Date : 2025-12-08 DOI: 10.1016/j.tra.2025.104829

E. Sandhiya , M.S. Gajanand

The increasing interest in climate change and environmental protection has led to an increasing global emphasis on electric vehicle (EV) adoption. This study investigates the growth and efficiency of EV adoption across the different states in India. Using Malmquist-DEA, we assess the impact of technological advancements and regional-level policies on EV adoption. We discuss the role of different performance metrics as a key driver for EV adoption. Furthermore, by using the case of India and examining regional variations for EV adoption efficiency, we recommend differentiated policy approaches: maintaining and expanding existing infrastructure for stable regions and implementing targeted policy interventions for relatively low-performing regions. The findings of this study provide valuable insights for policymakers to develop effective strategies that promote technological innovation, infrastructure development, and balanced EV adoption across different regions of a developing country.

随着人们对气候变化和环境保护的日益关注，全球越来越重视电动汽车（EV）的采用。本研究调查了印度不同邦的电动汽车采用的增长和效率。利用Malmquist-DEA，我们评估了技术进步和区域层面政策对电动汽车采用的影响。我们讨论了不同性能指标作为电动汽车采用的关键驱动因素的作用。此外，通过以印度为例，研究电动汽车采用效率的区域差异，我们建议采取差异化的政策方法：在稳定地区维护和扩大现有基础设施，在表现相对较差的地区实施有针对性的政策干预。本研究的发现为政策制定者制定有效的战略提供了有价值的见解，以促进技术创新、基础设施发展和发展中国家不同地区电动汽车的平衡采用。

引用次数: 0