Transport Policy最新文献_第4页

Comparing cost-only and multi-criteria hub location designs in Spain's intermodal freight network 比较西班牙多式联运货运网络中仅成本和多标准的枢纽位置设计

IF 6.3 2区工程技术

Transport Policy Pub Date : 2026-06-01 Epub Date: 2026-02-18 DOI: 10.1016/j.tranpol.2026.104081

José Moyano Retamero , Alberto Camarero Orive

{"title":"Comparing cost-only and multi-criteria hub location designs in Spain's intermodal freight network","authors":"José Moyano Retamero , Alberto Camarero Orive","doi":"10.1016/j.tranpol.2026.104081","DOIUrl":"10.1016/j.tranpol.2026.104081","url":null,"abstract":"<div><div>This paper compares two hub location formulations applied to Spain's 2023 port–inland intermodal freight network, a context where cost efficiency and operational robustness must coexist under increasing uncertainty. Model A is a cost-only CMAHLP that minimizes expected logistics cost under deterministic assumptions. Model B is a multi-criteria version including economic cost, stratified coverage and an operational recovery indicator grounded in Eurocode/ROM reliability standards. Both models use the same data, constraints and solution framework (NSGA-II), allowing a controlled comparison. The results show that incorporating coverage and recovery criteria can lead to network designs with comparable or lower expected total cost. Instead of increasing expenditure, the multi-criteria solutions shift hub locations, rebalance flows, and improve accessibility in inland areas, reducing exposure to disruption-related losses. These differences have direct implications for intermodal planning, especially in networks where ports, rail corridors and inland distribution must operate together under variable conditions. The contribution of the paper is empirical and policy-relevant: it examines how alternative modelling priorities modify the structure, risk profile and expected performance of a real freight network, providing evidence that resilience-oriented design can be integrated into strategic planning without presuming an inherent cost penalty.</div></div>","PeriodicalId":48378,"journal":{"name":"Transport Policy","volume":"181 ","pages":"Article 104081"},"PeriodicalIF":6.3,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147386101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Eco-innovation diffusion in retailers’ last-mile delivery: an agent-based model approach 零售商最后一英里配送中的生态创新扩散：基于代理的模型方法

IF 6.3 2区工程技术

Transport Policy Pub Date : 2026-06-01 Epub Date: 2026-01-27 DOI: 10.1016/j.tranpol.2026.104037

Ottavia Valentini , Moreno Baruffini , Elena Maggi , Elena Vallino

{"title":"Eco-innovation diffusion in retailers’ last-mile delivery: an agent-based model approach","authors":"Ottavia Valentini , Moreno Baruffini , Elena Maggi , Elena Vallino","doi":"10.1016/j.tranpol.2026.104037","DOIUrl":"10.1016/j.tranpol.2026.104037","url":null,"abstract":"<div><div>The transportation field represents cities' major source of air pollution, causing around 20 % of the total GHG emissions at the European level. Among others, road transport accounts for the highest share of overall transport emissions. In this framework, cities are starting to introduce zones with low- and zero-emissions, restricting access to Internal Combustion Engine vehicles. We decided to investigate the so-called last-mile delivery and its transition to more sustainable means of freight transport in cities. With this aim, we performed an analysis of the variation in simulated local emissions, varying different transport system parameters, in order to evaluate the possible outcome of different green policies. We used an Agent-Based Model network representation, and we simulated the diffusion of eco-innovation among a retailers' network, based on real-world data obtained from the Limited Traffic Zone (LTZ) of the center of Turin, in Italy. Our research shows how combined policies, simultaneously encouraging load efficiency and increasing penetration of ecological vehicles, produce the greatest emission reductions. Success in the diffusion of transport innovation is highly influenced by the network topology, by nodes’ distribution, and by the threshold for adoption. Innovation adoption reaches up to 90 % in Small World networks with a 15 % threshold, regardless of the ecological node centrality; it drops to ∼70 % at a 30 % threshold, and it falls below 60 % at a 45 % threshold, where only Free Scale and Erdős–Rényi topologies with central ecologic nodes maintain viability, highlighting a steep decline in robustness as adoption thresholds rise.</div></div>","PeriodicalId":48378,"journal":{"name":"Transport Policy","volume":"181 ","pages":"Article 104037"},"PeriodicalIF":6.3,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146175238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Port-shipping collaboration and investment strategies under cross-shareholding 交叉持股下港航合作与投资策略

IF 6.3 2区工程技术

Transport Policy Pub Date : 2026-06-01 Epub Date: 2026-02-18 DOI: 10.1016/j.tranpol.2026.104080

Jihong Chen , Jianyi Pan , Jun Ye , Jianghao Xu , Jinyu Xu

{"title":"Port-shipping collaboration and investment strategies under cross-shareholding","authors":"Jihong Chen , Jianyi Pan , Jun Ye , Jianghao Xu , Jinyu Xu","doi":"10.1016/j.tranpol.2026.104080","DOIUrl":"10.1016/j.tranpol.2026.104080","url":null,"abstract":"<div><div>This study employs game-theoretic models to analyze the performance of cross-shareholding (CS), Port Self-Investment (PI), and Profit-Sharing with Liner Investment (PS) in port-shipping supply chains, examining the impacts of different collaboration modes on pricing strategies, investment levels, and supply chain member profits. The research finds that the cross-shareholding mechanism effectively promotes deep collaboration between ports and liner companies, coordinating their interest conflicts, particularly under high investment difficulty where cooperative agreements are more easily reached. Compared to traditional investment models, cross-shareholding demonstrates significant advantages in enhancing overall supply chain efficiency and social benefits, especially under scenarios of high investment difficulty and low profit-sharing ratios. Furthermore, the study reveals the relationship between market power distribution among port-shipping supply chain members and collaboration modes, indicating that cooperation willingness diminishes when either ports or liner companies hold dominant bargaining power, whereas cross-shareholding becomes more feasible when both parties possess comparable economic scales. Ultimately, this research provides theoretical support for capital collaboration in port-shipping supply chains and offers actionable recommendations for policymakers to foster resilience and advance sustainable development within the industry.</div></div>","PeriodicalId":48378,"journal":{"name":"Transport Policy","volume":"181 ","pages":"Article 104080"},"PeriodicalIF":6.3,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147385983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The impact of high-speed rail on city government debt financing 高铁对城市政府债务融资的影响

IF 6.3 2区工程技术

Transport Policy Pub Date : 2026-06-01 Epub Date: 2026-02-21 DOI: 10.1016/j.tranpol.2026.104086

Shuping Wu , Zan Yang , Shuyang Yao , Xinlei Hu

引用次数: 0

Strategies for net-zero emissions in railways: China's path to sustainable transformation 铁路零排放战略：中国的可持续转型之路

IF 6.3 2区工程技术

Transport Policy Pub Date : 2026-06-01 Epub Date: 2026-02-24 DOI: 10.1016/j.tranpol.2026.104092

Qiaoling Luo , Feiyu Chen , Xi Wang , Debin Fang , Xinyu Han , Zeyu Xing

{"title":"Strategies for net-zero emissions in railways: China's path to sustainable transformation","authors":"Qiaoling Luo , Feiyu Chen , Xi Wang , Debin Fang , Xinyu Han , Zeyu Xing","doi":"10.1016/j.tranpol.2026.104092","DOIUrl":"10.1016/j.tranpol.2026.104092","url":null,"abstract":"<div><div>The transportation sector is a major source of global carbon emissions, yet the micro-level pathways for railway decarbonization remain underexplored. This study bridges this gap by proposing an integrated LMDI-LEAP analytical framework for developing zero-carbon strategies at the micro-level of railway enterprises. The framework employs an enhanced Logarithmic Mean Divisia Index (LMDI) decomposition to quantify the historical (2005-2023) contributions of key drivers, such as energy structure and transport modality, for a major Chinese railway enterprise (XRG). These quantified drivers then directly parameterize the scenario settings in a tailored Low Emissions Analysis Platform (LEAP) model to project future emission trajectories under six policy pathways. Then, strategies are formulated by comparing the mitigation potential across these simulated scenarios. The core findings are threefold. First, absolute CO<sub>2</sub> emissions rose to 3.50 million tonnes by 2023. Second, decomposition of driving factors identifies electrification as the most effective lever, while improvements in internal combustion locomotive efficiency paradoxically increased emissions due to a rebound in transport volume. Third, projection of mitigation potential demonstrates that only an integrated policy scenario can achieve carbon neutrality by 2060. Crucially, freight transport accounts for 55–70% of the total reduction potential, marking it as the priority sector for intervention. This research provides a novel and replicable analytical framework for enterprise-level decarbonization planning, bridging the gap between macro policy goals and micro-level operational realities.</div></div>","PeriodicalId":48378,"journal":{"name":"Transport Policy","volume":"181 ","pages":"Article 104092"},"PeriodicalIF":6.3,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147386052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Integrating AAM vertiport infrastructure into Australian airports: A hybrid simulation framework 将AAM垂直机场基础设施整合到澳大利亚机场：一个混合模拟框架

IF 6.3 2区工程技术

Transport Policy Pub Date : 2026-06-01 Epub Date: 2026-02-16 DOI: 10.1016/j.tranpol.2026.104078

Salim Hijazeen , Tommy King-Yin Cheung , Zheng Lei , Jennifer A. Hayward

{"title":"Integrating AAM vertiport infrastructure into Australian airports: A hybrid simulation framework","authors":"Salim Hijazeen , Tommy King-Yin Cheung , Zheng Lei , Jennifer A. Hayward","doi":"10.1016/j.tranpol.2026.104078","DOIUrl":"10.1016/j.tranpol.2026.104078","url":null,"abstract":"<div><div>Integrating Advanced Air Mobility (AAM) aircraft into commercial airports presents airport operational and regulatory challenges. Existing Air Traffic Control (ATC) infrastructure is built over decades based on traditional aircraft and not designed for the high-frequency, on-demand patterns of AAM aircraft. The characteristics of AAM aircraft introduce sequencing conflicts and increase ATC personnel utilisation when mixed with existing airliner traffic within an airport ecosystem. These challenges influence vertiport infrastructure layout and specific AAM propulsion servicing methods, as each directly affects AAM turnaround times and passenger flow throughout the airport terminals. To address these challenges, this study developed a hybrid simulation model combining Agent-Based Modelling (ABM) and Discrete Event Simulation (DES), focused on Melbourne Airport. Simulation experiments assessed performance across ATC utilisation, vertiport layout, propulsion type, and passenger flow. In AAM-only operations, ATC utilisation averaged 4.46%, indicating minimal increase to ATC personnel at low initial AAM demand. Under mixed traffic with a single ATC, utilisation rose to 43.15%, while adding a second controller reduced utilisation to 39.33% and increased completed AAM movements by 8% relative to the single controller mixed traffic case. The simulation results highlight the relationship between ATC personnel utilisation, vertiport layouts and AAM propulsion servicing requirements, all which offer insights for the Civil Aviation Safety Authority (CASA) to assist with policy implementation.</div></div>","PeriodicalId":48378,"journal":{"name":"Transport Policy","volume":"181 ","pages":"Article 104078"},"PeriodicalIF":6.3,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147386055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spatial heterogeneity, driving factors and synergistic effects of CO2 and air pollutant emissions from internal trucks in container ports 集装箱港口内货车CO2与大气污染物排放的空间异质性、驱动因素及协同效应

IF 6.3 2区工程技术

Transport Policy Pub Date : 2026-05-01 Epub Date: 2026-01-27 DOI: 10.1016/j.tranpol.2026.104051

Yang Zhang, Shuxin Hui, Shanshan Fu, Yong Zhou, Cunlong Fan, Meiyu Shi

{"title":"Spatial heterogeneity, driving factors and synergistic effects of CO2 and air pollutant emissions from internal trucks in container ports","authors":"Yang Zhang, Shuxin Hui, Shanshan Fu, Yong Zhou, Cunlong Fan, Meiyu Shi","doi":"10.1016/j.tranpol.2026.104051","DOIUrl":"10.1016/j.tranpol.2026.104051","url":null,"abstract":"<div><div>Measures for the synergistic mitigation of climate change and air pollution have gained growing attention to reap the co-benefits of reducing greenhouse gas and pollutant emissions. As container trucks are significant sources of emissions in port cities, profiling and curbing their exhaust is essential for advancing synergistic climate-and-air-pollution control. Taking Shanghai and Ningbo-Zhoushan Ports of China as examples, this study proposed a framework to explore the spatial heterogeneity, driving factors and synergistic effects of Carbon Dioxide (CO<sub>2</sub>) and air pollutant (AP) emissions from internal container trucks. From 2013 to 2022, the annual CO<sub>2</sub> and most AP emissions increased in both ports, except that NO<sub><em>x</em></sub> and SO<sub>2</sub> emissions decreased by 16.3 % and 99.8 % in Shanghai Port and the SO<sub>2</sub> emission decreased by 93.5 % in Ningbo-Zhoushan Port. The “oil-to-gas” conversion suppresses CO<sub>2</sub> and SO<sub>2</sub> emissions in both ports and curbs NO<sub><em>x</em></sub> and PM<sub>2.5</sub> emissions in Ningbo-Zhoushan Port. Although the synergistic effects of CO<sub>2</sub> and AP emissions varied across space and time, both ports are projected to start synergistic reductions of CO<sub>2</sub> and APs no later than 2034, 2033 and 2031 under the Business-as-Usual, Emission Reduction Scenario and Enhanced Emission Reduction Scenario, respectively. The framework proposed in this study can potentially be extended to port areas around the world and provide insights for policy aimed at addressing climate change and air pollution in port areas.</div></div>","PeriodicalId":48378,"journal":{"name":"Transport Policy","volume":"180 ","pages":"Article 104051"},"PeriodicalIF":6.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146174520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A country-based well-to-wheel efficiency comparison of electric and fossil-fuelled vehicles: A comprehensive study considering fuel sources and policy implications 基于国家的电动和化石燃料汽车的井到车轮效率比较：考虑燃料来源和政策影响的综合研究

IF 6.3 2区工程技术

Transport Policy Pub Date : 2026-05-01 Epub Date: 2026-01-28 DOI: 10.1016/j.tranpol.2026.104041

Sultan Büşra Artaş , Hüseyin Yağlı , Ali Kahraman

{"title":"A country-based well-to-wheel efficiency comparison of electric and fossil-fuelled vehicles: A comprehensive study considering fuel sources and policy implications","authors":"Sultan Büşra Artaş , Hüseyin Yağlı , Ali Kahraman","doi":"10.1016/j.tranpol.2026.104041","DOIUrl":"10.1016/j.tranpol.2026.104041","url":null,"abstract":"<div><div>Increasing energy demand brings environmental challenges, especially due to the dependence on fossil fuels. Despite importance of energy supply, they cause damage to the environment. For sustainability, the transition to alternative energy sources is accelerating. The transport sector that is heavily dependent on fossil fuels consumes a large portion of energy. Efficient engines, lightweight materials and alternative fuels are required to reduce emissions. Promoting advanced vehicle technologies and clean fuels helps to reduce urban pollution. While electric vehicles are key to this transition, their environmental benefits are highly dependent on a country's electricity mix. A comprehensive assessment of energy and emissions is essential. This study conducts a comprehensive Wheel-to-Wheel analysis to assess the energy efficiency of EVs compared to diesel and petrol vehicles in eight countries with different electricity generation profiles, encompassing both the upstream well-to-tank fuel cycle processes and the downstream tank-to-wheel conversion stages within the full energy pathway. The analysis shows that diesels exhibit the highest average WTW efficiency among internal combustion engines at 25.37 %, while petrol vehicles lag behind at 18.20 %. However, EV-WTW efficiency ranges widely, from 36.54 % in the Netherlands, where renewable energy dominates, to only 21.26 % in Saudi Arabia that is heavily dependent on fossil fuels. The real world energy consumption of EVs also varies significantly. The findings emphasize that although EVs are a promising solution for sustainable mobility, their actual environmental performance is conditional. Countries should prioritize grid decarbonization to realize the full potential of EVs. The novelty of this study lies in integrating real-world vehicle data with country-specific WTW modelling, providing a critical lens for policymakers to align transport electrification with clean energy transitions.</div></div>","PeriodicalId":48378,"journal":{"name":"Transport Policy","volume":"180 ","pages":"Article 104041"},"PeriodicalIF":6.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146080978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Different travel behavior between low-income and high-income minority groups 低收入和高收入少数群体旅游行为的差异

IF 6.3 2区工程技术

Transport Policy Pub Date : 2026-05-01 Epub Date: 2026-01-29 DOI: 10.1016/j.tranpol.2026.104034

Seungil Yum

引用次数: 0

Understanding in-station mobility gaps in metro systems: Evidence from smart card data on passengers with reduced mobility 了解地铁系统的站内流动性差距：来自行动不便乘客智能卡数据的证据

IF 6.3 2区工程技术

Transport Policy Pub Date : 2026-05-01 Epub Date: 2026-01-22 DOI: 10.1016/j.tranpol.2026.104022

Yi-Shih Chung, Amy Chu

{"title":"Understanding in-station mobility gaps in metro systems: Evidence from smart card data on passengers with reduced mobility","authors":"Yi-Shih Chung, Amy Chu","doi":"10.1016/j.tranpol.2026.104022","DOIUrl":"10.1016/j.tranpol.2026.104022","url":null,"abstract":"<div><div>As urban populations age and accessibility concerns intensify, understanding the in-station experience of passengers with reduced mobility (PRM) has become increasingly important for equitable mass rapid transit (MRT) planning and operations. While prior studies have largely focused on station access, limited attention has been paid to mobility within station buildings, where design and operational factors directly affect passenger movement. This study addresses that gap by analyzing in-station dwell time using smart card transaction data from the Taipei Metro, with a particular focus on PRM passengers. A modified passenger-to-train assignment model (PTAM) is developed to decompose total dwell time into access, transfer, and egress components. Applied to the Green Line of Taipei Metro and validated using holdout data, the model is followed by multilevel regression analysis to assess how dwell time varies across traveler groups and station paths. Results show that, on average, PRM passengers experience 26.0 % longer access times, 12.9 % longer egress times, and 10.7 % longer transfer times compared with regular passengers, after controlling for station physical size, gate passenger volume, station design and accessibility features, and train headways. The probability of boarding the first arriving train was also consistently lower for PRM passengers, particularly during peak periods at congested stations. These disparities are most pronounced in spatially complex or crowded stations, suggesting targeted interventions such as optimizing transfer routes, managing peak-period passenger flows, and adjusting train dispatching strategies. By linking detailed behavioral insights to station- and system-level interventions, the study contributes a scalable, data-driven framework for inclusive transit planning and policy development.</div></div>","PeriodicalId":48378,"journal":{"name":"Transport Policy","volume":"180 ","pages":"Article 104022"},"PeriodicalIF":6.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146081071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0