首页 > 最新文献

Transportation Journal最新文献

英文 中文
An On-Demand Dynamic Taxi Crowdshipping Model for Urban Parcel Delivery 城市包裹配送的按需动态出租车拥挤运输模型
IF 2.3 4区 工程技术 Q4 MANAGEMENT Pub Date : 2023-04-01 DOI: 10.5325/transportationj.62.2.0177
Amirhossein Baghestani, S. Najafabadi, Mahdieh Allahviranloo
Abstract:In this article, a dynamic crowdshipping model is presented to use the vacant space of taxis to deliver parcels while serving passengers. A mixed integer linear programming (MILP) model within a rolling horizon framework that periodically updates input information is formulated. The objective function aims to maximize the number of matched trips while controlling the total travel time in the system. The developed model is tested using the taxi ridership and the household travel survey data in New York City, ensuring the credibility of the proposed model in addressing the goals of the study and its potential application to mitigate transportation externalities.
摘要:本文提出了一种动态众包模型,在为乘客服务的同时,利用出租车的空闲空间运送包裹。建立了滚动时域框架内的混合整数线性规划(MILP)模型,该模型周期性地更新输入信息。目标函数旨在最大化匹配行程的数量,同时控制系统中的总行程时间。使用纽约市的出租车乘客量和家庭出行调查数据对所开发的模型进行了测试,确保了所提出的模型在实现研究目标方面的可信度及其在缓解交通外部性方面的潜在应用。
{"title":"An On-Demand Dynamic Taxi Crowdshipping Model for Urban Parcel Delivery","authors":"Amirhossein Baghestani, S. Najafabadi, Mahdieh Allahviranloo","doi":"10.5325/transportationj.62.2.0177","DOIUrl":"https://doi.org/10.5325/transportationj.62.2.0177","url":null,"abstract":"Abstract:In this article, a dynamic crowdshipping model is presented to use the vacant space of taxis to deliver parcels while serving passengers. A mixed integer linear programming (MILP) model within a rolling horizon framework that periodically updates input information is formulated. The objective function aims to maximize the number of matched trips while controlling the total travel time in the system. The developed model is tested using the taxi ridership and the household travel survey data in New York City, ensuring the credibility of the proposed model in addressing the goals of the study and its potential application to mitigate transportation externalities.","PeriodicalId":46529,"journal":{"name":"Transportation Journal","volume":"62 1","pages":"177 - 208"},"PeriodicalIF":2.3,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44410038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Review of the Proximity Literature: Supply Chain's Missing Link 供应链缺失环节:邻近性文献综述
IF 2.3 4区 工程技术 Q4 MANAGEMENT Pub Date : 2023-04-01 DOI: 10.5325/transportationj.62.2.0209
Juan David Cortes
Abstract:Firms that span a wide array of locations, cultures, and industries have to interact with one another and make efforts to effectively coordinate their supply chains. This has led the concept of proximity to be increasingly important in different streams of literature. However, proximity in the context of supply chain represents an important construct that lacks a clear conceptualization and needs further research. In this paper, we contribute to the body of literature on proximity as well as that of supply chain by proposing an extension to existing proximity frameworks and incorporating a new dimension of supply chain proximity. We conduct a systematic review of supply chain and other relevant literatures, summarize key findings, and present a new multidimensional framework of proximity, inclusive of supply chain management. We discuss methodological issues, and outline research suggestions for different streams of literature.
摘要:跨越各种地点、文化和行业的公司必须相互互动,并努力有效地协调其供应链。这使得邻近的概念在不同的文学流中变得越来越重要。然而,供应链背景下的邻近性是一个重要的概念,缺乏明确的概念,需要进一步研究。在本文中,我们提出了对现有邻近度框架的扩展,并引入了供应链邻近度的新维度,从而为邻近度和供应链的邻近度的大量文献做出了贡献。我们对供应链和其他相关文献进行了系统回顾,总结了关键发现,并提出了一个新的多维邻近度框架,包括供应链管理。我们讨论了方法论问题,并概述了不同文献流的研究建议。
{"title":"A Review of the Proximity Literature: Supply Chain's Missing Link","authors":"Juan David Cortes","doi":"10.5325/transportationj.62.2.0209","DOIUrl":"https://doi.org/10.5325/transportationj.62.2.0209","url":null,"abstract":"Abstract:Firms that span a wide array of locations, cultures, and industries have to interact with one another and make efforts to effectively coordinate their supply chains. This has led the concept of proximity to be increasingly important in different streams of literature. However, proximity in the context of supply chain represents an important construct that lacks a clear conceptualization and needs further research. In this paper, we contribute to the body of literature on proximity as well as that of supply chain by proposing an extension to existing proximity frameworks and incorporating a new dimension of supply chain proximity. We conduct a systematic review of supply chain and other relevant literatures, summarize key findings, and present a new multidimensional framework of proximity, inclusive of supply chain management. We discuss methodological issues, and outline research suggestions for different streams of literature.","PeriodicalId":46529,"journal":{"name":"Transportation Journal","volume":"62 1","pages":"209 - 248"},"PeriodicalIF":2.3,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41518309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Consumer Reactions to Incidents within a Retailer's Supply Chain: A Collective Reputations Perspective 零售商供应链中消费者对事件的反应:一个集体声誉的视角
IF 2.3 4区 工程技术 Q4 MANAGEMENT Pub Date : 2023-04-01 DOI: 10.5325/transportationj.62.2.0101
R. Overstreet, D. Cantor, R. Laczniak
Abstract:Prior research has demonstrated that a horizontal reputation commons is shared across the breadth of an industry. However, less is known about the existence of a vertical reputation commons among supply chain members. The purpose of this consumer-centric study is to examine the spillover effect of an upstream incident in the supply chain on consumer perceptions of a retailer's reputation and consumer repatronage intention. Specifically, this study explores two factors that may impact consumer perceptions: location of the incident within the retailer's supply chain and the severity of the incident. Study 1 tests the spillover effect on the retailer's reputation and repatronage intention using a two-tier supply chain and two relative extremes of severity. Study 2 examines how a retailer through messaging could dampen the spillover effect following an upstream incident. Our findings provide insight regarding when and how consumer perceptions regarding a retailer's reputation may change following an incident in the retailer's supply chain and how those perceptions can be influenced by effective messaging. Collectively, our results offer initial theoretical insights into the concept of a supply chain (vertical) reputation commons.
摘要:已有研究表明,横向声誉公地在整个行业范围内共享。然而,人们对供应链成员之间存在的垂直声誉公域知之甚少。这项以消费者为中心的研究的目的是检验供应链上游事件对消费者对零售商声誉和消费者再光顾意愿的感知的溢出效应。具体来说,本研究探讨了可能影响消费者认知的两个因素:事件在零售商供应链中的位置和事件的严重程度。研究1使用两层供应链和两个相对极端的严重程度测试了溢出效应对零售商声誉和再光顾意愿的影响。研究2考察了零售商如何通过信息传递来抑制上游事件后的溢出效应。我们的研究结果提供了关于消费者对零售商声誉的看法何时以及如何在零售商供应链发生事件后发生变化,以及这些看法如何受到有效信息的影响的见解。总的来说,我们的结果为供应链(垂直)声誉公地的概念提供了初步的理论见解。
{"title":"Consumer Reactions to Incidents within a Retailer's Supply Chain: A Collective Reputations Perspective","authors":"R. Overstreet, D. Cantor, R. Laczniak","doi":"10.5325/transportationj.62.2.0101","DOIUrl":"https://doi.org/10.5325/transportationj.62.2.0101","url":null,"abstract":"Abstract:Prior research has demonstrated that a horizontal reputation commons is shared across the breadth of an industry. However, less is known about the existence of a vertical reputation commons among supply chain members. The purpose of this consumer-centric study is to examine the spillover effect of an upstream incident in the supply chain on consumer perceptions of a retailer's reputation and consumer repatronage intention. Specifically, this study explores two factors that may impact consumer perceptions: location of the incident within the retailer's supply chain and the severity of the incident. Study 1 tests the spillover effect on the retailer's reputation and repatronage intention using a two-tier supply chain and two relative extremes of severity. Study 2 examines how a retailer through messaging could dampen the spillover effect following an upstream incident. Our findings provide insight regarding when and how consumer perceptions regarding a retailer's reputation may change following an incident in the retailer's supply chain and how those perceptions can be influenced by effective messaging. Collectively, our results offer initial theoretical insights into the concept of a supply chain (vertical) reputation commons.","PeriodicalId":46529,"journal":{"name":"Transportation Journal","volume":"62 1","pages":"101 - 143"},"PeriodicalIF":2.3,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46043250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Comparison of Three Popular Routing Policies for Lift-truck Order Picking 三种常用的叉车订单拣选路径策略的比较
IF 2.3 4区 工程技术 Q4 MANAGEMENT Pub Date : 2023-01-01 DOI: 10.5325/transportationj.62.1.0079
Vitaly Brazhkin, William J. Rose
Abstract:This study addresses order-picking routing optimization in a wide aisle of a mechanized warehouse. Efficiencies of the three popular heuristic policies (return, traversal, and Z-pick) are compared for different pick densities. A modified Z-pick policy with a flexible string length is proposed to increase its efficiency and accommodate lift-truck movement. The simulation-based results show that all three policies are not significantly different in the pick density region of 10–15 percent. The traversal policy performs better at pick densities below the region of indifference, while the return policy outperforms the others at higher pick densities. However, the Z-pick provides a viable universal alternative across all tested pick densities.
摘要:本文研究了机械化仓库大通道拣货路线优化问题。对于不同的拾取密度,比较了三种流行的启发式策略(返回、遍历和z拾取)的效率。提出了一种改进的Z-pick策略,具有灵活的管柱长度,以提高其效率并适应叉车的移动。仿真结果表明,在10 - 15%的拣货密度范围内,三种策略之间没有显著差异。遍历策略在选择密度低于无差异区域时表现更好,而返回策略在更高选择密度时表现优于其他策略。然而,z锥提供了一种可行的通用选择,适用于所有测试过的锥密度。
{"title":"A Comparison of Three Popular Routing Policies for Lift-truck Order Picking","authors":"Vitaly Brazhkin, William J. Rose","doi":"10.5325/transportationj.62.1.0079","DOIUrl":"https://doi.org/10.5325/transportationj.62.1.0079","url":null,"abstract":"Abstract:This study addresses order-picking routing optimization in a wide aisle of a mechanized warehouse. Efficiencies of the three popular heuristic policies (return, traversal, and Z-pick) are compared for different pick densities. A modified Z-pick policy with a flexible string length is proposed to increase its efficiency and accommodate lift-truck movement. The simulation-based results show that all three policies are not significantly different in the pick density region of 10–15 percent. The traversal policy performs better at pick densities below the region of indifference, while the return policy outperforms the others at higher pick densities. However, the Z-pick provides a viable universal alternative across all tested pick densities.","PeriodicalId":46529,"journal":{"name":"Transportation Journal","volume":"62 1","pages":"79 - 99"},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44974833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Rehabilitating Locks and Dams in the Upper Mississippi Waterway Through PPP: A New Business Model 通过PPP修复密西西比河上游水道的水闸和水坝:一种新的商业模式
IF 2.3 4区 工程技术 Q4 MANAGEMENT Pub Date : 2023-01-01 DOI: 10.5325/transportationj.62.1.0043
Yoshinori Suzuki
Abstract:Many supply chains rely on barge transportation along the Upper Mississippi waterway system. However, locks and dams that enable traffic flows through the waterway system are aging and causing disruptions frequently, bringing considerable financial damages to shippers. Cost of the major system rehabilitation is estimated to be over $1 billion, and the prospects for getting such a large funding from the government are bleak. Public-private partnership (PPP) based on the conventional business model that requires collecting end-user fees to provide revenue to the participating private firms has been proposed, but not implemented due to the regulatory barriers that forbid the collection of user fees. This study proposes a new PPP business model that does not require collecting user fees. This model seeks to attract funding from shippers in exchange for reducing their financial losses due to frequent system disruptions. We describe the model concept and examine its effectiveness by performing a series of analyses that combine analytical, econometric, and simulation techniques. Results show that the proposed model is not only viable, but also financially attractive to shippers if the invested amount is optimal, allowing them to reduce supply chain disruptions considerably while also achieving sizable investment returns.
摘要:许多供应链依赖密西西比河上游水道系统的驳船运输。然而,使交通能够通过水道系统的船闸和水坝正在老化,并经常造成中断,给托运人带来相当大的经济损失。主要系统修复的成本估计超过10亿美元,从政府获得如此巨额资金的前景黯淡。已经提出了基于传统商业模式的公私合作(PPP),该模式要求收取最终用户费用以向参与的私营公司提供收入,但由于禁止收取用户费用的监管障碍,该模式尚未实施。这项研究提出了一种新的PPP商业模式,不需要收取用户费用。该模式旨在吸引托运人的资金,以减少其因频繁的系统中断而造成的财务损失。我们描述了模型的概念,并通过结合分析、计量经济学和模拟技术进行一系列分析来检验其有效性。结果表明,如果投资额最优,所提出的模型不仅可行,而且对托运人具有财务吸引力,使他们能够大幅减少供应链中断,同时获得可观的投资回报。
{"title":"Rehabilitating Locks and Dams in the Upper Mississippi Waterway Through PPP: A New Business Model","authors":"Yoshinori Suzuki","doi":"10.5325/transportationj.62.1.0043","DOIUrl":"https://doi.org/10.5325/transportationj.62.1.0043","url":null,"abstract":"Abstract:Many supply chains rely on barge transportation along the Upper Mississippi waterway system. However, locks and dams that enable traffic flows through the waterway system are aging and causing disruptions frequently, bringing considerable financial damages to shippers. Cost of the major system rehabilitation is estimated to be over $1 billion, and the prospects for getting such a large funding from the government are bleak. Public-private partnership (PPP) based on the conventional business model that requires collecting end-user fees to provide revenue to the participating private firms has been proposed, but not implemented due to the regulatory barriers that forbid the collection of user fees. This study proposes a new PPP business model that does not require collecting user fees. This model seeks to attract funding from shippers in exchange for reducing their financial losses due to frequent system disruptions. We describe the model concept and examine its effectiveness by performing a series of analyses that combine analytical, econometric, and simulation techniques. Results show that the proposed model is not only viable, but also financially attractive to shippers if the invested amount is optimal, allowing them to reduce supply chain disruptions considerably while also achieving sizable investment returns.","PeriodicalId":46529,"journal":{"name":"Transportation Journal","volume":"62 1","pages":"43 - 78"},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42876734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Collaboration in Publication: Can We Practice What We Preach? 出版合作:我们能言行一致吗?
IF 2.3 4区 工程技术 Q4 MANAGEMENT Pub Date : 2023-01-01 DOI: 10.5325/transportationj.62.1.0001
Y. Jin, David Swanson, Bryan Ashenbaum
Abstract:As editors it is our intent to continually improve the quality of both published articles for our readers and reviews received by our authors here at Transportation Journal. With that purpose in mind, this article seeks to draw parallels between the editorial review process and supply chain collaboration, helping us practice what we teach. Importantly, the review process is intended to co-create value among authors and reviewers under the guidance of the editors. While Transportation Journal already has a core group of scholars who excel in both roles as authors and reviewers, our goal is for this editorial to serve as a guide for our extended network of contributors to adopt an enhanced, collaborative approach. In doing so, we believe that the intended results will ultimately lead us toward production process that is at an even higher quality to generate even greater value for the community.
摘要:作为《交通学报》的编辑,我们的目的是不断提高读者发表文章的质量和作者在《交通学报》上收到的评论的质量。考虑到这个目的,本文试图在编辑审查过程和供应链协作之间画出相似之处,帮助我们实践我们所教授的内容。重要的是,审稿过程旨在在编辑的指导下,在作者和审稿人之间共同创造价值。虽然《交通杂志》已经有了一个既擅长作者又擅长审稿人的核心学者小组,但我们的目标是让这篇社论成为我们扩展的贡献者网络的指南,以采用一种增强的、合作的方式。在这样做的过程中,我们相信预期的结果将最终引导我们走向更高质量的生产过程,为社区创造更大的价值。
{"title":"Collaboration in Publication: Can We Practice What We Preach?","authors":"Y. Jin, David Swanson, Bryan Ashenbaum","doi":"10.5325/transportationj.62.1.0001","DOIUrl":"https://doi.org/10.5325/transportationj.62.1.0001","url":null,"abstract":"Abstract:As editors it is our intent to continually improve the quality of both published articles for our readers and reviews received by our authors here at Transportation Journal. With that purpose in mind, this article seeks to draw parallels between the editorial review process and supply chain collaboration, helping us practice what we teach. Importantly, the review process is intended to co-create value among authors and reviewers under the guidance of the editors. While Transportation Journal already has a core group of scholars who excel in both roles as authors and reviewers, our goal is for this editorial to serve as a guide for our extended network of contributors to adopt an enhanced, collaborative approach. In doing so, we believe that the intended results will ultimately lead us toward production process that is at an even higher quality to generate even greater value for the community.","PeriodicalId":46529,"journal":{"name":"Transportation Journal","volume":"62 1","pages":"1 - 15"},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44557106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Modernized Framework for Transportation Decision-Making in a Hyper-Integrated Global Supply Chain Environment 高度整合的全球供应链环境下的现代化交通决策框架
IF 2.3 4区 工程技术 Q4 MANAGEMENT Pub Date : 2023-01-01 DOI: 10.5325/transportationj.62.1.0016
Thomas J. Goldsby, Thu Trang Hoang, T. Stank, J. E. Bell
Abstract:At the turn of the century, firms struggled to make transportation decisions in increasingly integrated supply chains that routinely stretched around the world. In "A Framework for Transportation Decision Making in an Integrated Supply Chain" (Supply Chain Management: An International Journal 5 [2]: 71–77) T. P. Stank and T. J. Goldsby proposed an original transportation decision-making framework to address the need. The framework is cited over 250 times in the academic literature and referenced by firms seeking to optimize cost-service tradeoffs in an environment characterized by higher levels of market freedoms, service innovation, and supply chain collaboration. Since the year 2000, though, the digital revolution, customer expectations, and supply chain resilience concerns have given rise to new demands for transportation decision-making, with operations residing in a hyper-integrated and further globally entrenched state. Therefore, we revisit Stank and Goldsby's original framework to review major transportation decision areas and devise contemporary mechanisms to address the modern business environment. Our framework highlights the rapid and interdependent nature of today's corporate transportation decisions to help firms tackle current business needs and long-term strategic interests. We also seek to illuminate prospective avenues for research endeavor.
摘要:在世纪之交,公司在日益一体化的供应链中努力做出运输决策,这些供应链通常延伸到世界各地。在“集成供应链中的运输决策框架”(供应链管理:国际期刊5 bbb: 71-77)中,T. P. Stank和T. J. Goldsby提出了一个原始的运输决策框架来解决这一需求。该框架在学术文献中被引用超过250次,并被企业在以更高水平的市场自由、服务创新和供应链协作为特征的环境中寻求优化成本-服务权衡的参考。然而,自2000年以来,数字革命、客户期望和供应链弹性问题引发了对运输决策的新需求,运营处于高度整合和进一步全球化的状态。因此,我们重新审视Stank和Goldsby的原始框架,以审查主要的交通决策领域,并设计当代机制来应对现代商业环境。我们的框架强调了当今企业运输决策的快速和相互依赖的性质,以帮助企业解决当前的业务需求和长期战略利益。我们也试图阐明未来的研究途径。
{"title":"A Modernized Framework for Transportation Decision-Making in a Hyper-Integrated Global Supply Chain Environment","authors":"Thomas J. Goldsby, Thu Trang Hoang, T. Stank, J. E. Bell","doi":"10.5325/transportationj.62.1.0016","DOIUrl":"https://doi.org/10.5325/transportationj.62.1.0016","url":null,"abstract":"Abstract:At the turn of the century, firms struggled to make transportation decisions in increasingly integrated supply chains that routinely stretched around the world. In \"A Framework for Transportation Decision Making in an Integrated Supply Chain\" (Supply Chain Management: An International Journal 5 [2]: 71–77) T. P. Stank and T. J. Goldsby proposed an original transportation decision-making framework to address the need. The framework is cited over 250 times in the academic literature and referenced by firms seeking to optimize cost-service tradeoffs in an environment characterized by higher levels of market freedoms, service innovation, and supply chain collaboration. Since the year 2000, though, the digital revolution, customer expectations, and supply chain resilience concerns have given rise to new demands for transportation decision-making, with operations residing in a hyper-integrated and further globally entrenched state. Therefore, we revisit Stank and Goldsby's original framework to review major transportation decision areas and devise contemporary mechanisms to address the modern business environment. Our framework highlights the rapid and interdependent nature of today's corporate transportation decisions to help firms tackle current business needs and long-term strategic interests. We also seek to illuminate prospective avenues for research endeavor.","PeriodicalId":46529,"journal":{"name":"Transportation Journal","volume":"62 1","pages":"16 - 42"},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70918945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Antecedents of Spot and Contract Freight Mix in the Truckload Sector 卡车运输行业现货和合同货运组合的先决条件
IF 2.3 4区 工程技术 Q4 MANAGEMENT Pub Date : 2022-11-21 DOI: 10.5325/transportationj.61.4.0331
Ming Li, Yemisi Bolumole, Jason W. Miller
Abstract:Truckload carriers face tradeoffs in their effort to build their freight networks from combinations of spot market and contract shipments. These tradeoffs exist because contract freight provides loose volume guarantees but lower linehaul rates, whereas spot freight commands higher linehaul rates while being more stochastic in nature. The issue of carriers’ mix of spot market and contract freight, while of utmost importance in practice, has received limited theoretical and empirical attention. Drawing on dynamic transaction cost theory, we develop middle-range theory that explains why carrier traits such as size and use of team drivers as well as characteristics of the freight markets in which they are embedded impact carriers’ reliance on spot market instead of contract freight. To test our theory, we rely on archival survey data collected by CarrierLists, a firm that specializes in compiling and disseminating motor-carrier information. Our econometric estimates corroborate our theory and remain after robustness testing. Apart from extending theory regarding dynamic transaction costs, our findings have important implications for carriers, brokers, and shippers.
摘要:货车运输公司在建立现货市场与合同运输相结合的货运网络时面临着权衡。这些权衡之所以存在,是因为合同货运提供了松散的数量保证,但线路运输费率较低,而现货货运要求较高的线路运输费率,但本质上更具随机性。承运人的现货市场和合同运费组合问题虽然在实践中极为重要,但理论和实证的关注却有限。利用动态交易成本理论,我们发展了中间区间理论,解释了为什么承运人的特征,如团队司机的规模和使用,以及它们所嵌入的货运市场的特征,会影响承运人对现货市场而不是合同货运的依赖。为了验证我们的理论,我们依靠CarrierLists收集的档案调查数据,CarrierLists是一家专门编纂和传播汽车承运人信息的公司。我们的计量经济学估计证实了我们的理论,并在稳健性检验后保持不变。除了扩展有关动态交易成本的理论外,我们的研究结果对承运人、经纪人和托运人具有重要意义。
{"title":"Antecedents of Spot and Contract Freight Mix in the Truckload Sector","authors":"Ming Li, Yemisi Bolumole, Jason W. Miller","doi":"10.5325/transportationj.61.4.0331","DOIUrl":"https://doi.org/10.5325/transportationj.61.4.0331","url":null,"abstract":"Abstract:Truckload carriers face tradeoffs in their effort to build their freight networks from combinations of spot market and contract shipments. These tradeoffs exist because contract freight provides loose volume guarantees but lower linehaul rates, whereas spot freight commands higher linehaul rates while being more stochastic in nature. The issue of carriers’ mix of spot market and contract freight, while of utmost importance in practice, has received limited theoretical and empirical attention. Drawing on dynamic transaction cost theory, we develop middle-range theory that explains why carrier traits such as size and use of team drivers as well as characteristics of the freight markets in which they are embedded impact carriers’ reliance on spot market instead of contract freight. To test our theory, we rely on archival survey data collected by CarrierLists, a firm that specializes in compiling and disseminating motor-carrier information. Our econometric estimates corroborate our theory and remain after robustness testing. Apart from extending theory regarding dynamic transaction costs, our findings have important implications for carriers, brokers, and shippers.","PeriodicalId":46529,"journal":{"name":"Transportation Journal","volume":"61 1","pages":"331 - 368"},"PeriodicalIF":2.3,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44890573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 3
How Much Did That Cost? A Call for Improved Transportation Cost Transparency 那花了多少钱?呼吁提高运输成本透明度
IF 2.3 4区 工程技术 Q4 MANAGEMENT Pub Date : 2022-11-21 DOI: 10.5325/transportationj.61.4.0315
David Swanson, Y. Jin, Bryan Ashenbaum
Abstract:In 2021 business logistics costs in the United States were 8 percent of the nation’s GDP. However, significant discrepancies exist between aggregated transportation costs and those recorded at the firm level. Under generally accepted accounting principles (GAAP)—a standard for publicly traded companies in the United States must abide—transportation costs are generally recognized as direct expenditure on transportation services, such as when firms pay a carrier for transporting freight. On the other hand, expense items such as fuel, driver wages, leases on transportation equipment are instead broadly grouped under operating expenses despite their specific transportation purposes. In doing so, these expenses that are typically recorded internally as transportation costs are obfuscated to investors, scholars, or other users of financial statements filed along with company quarterly and annual reports. As recent supply chain disruptions due to both natural (e.g., pandemic) and manmade (e.g., foreign conflicts) causes have highlighted, there is an urgent need for various stakeholders to be able to evaluate firm logistics and transportation strategy with better salience. To that end, improved transportation cost visibility is urgently needed. Therefore, our objective is to provide a research agenda for academics to broach the subject of transportation cost transparency.
摘要:2021年,美国的商业物流成本占全国GDP的8%。但是,总运输成本与在公司一级记录的运输成本之间存在显著差异。根据公认会计原则(GAAP)——美国上市公司必须遵守的标准——运输成本通常被确认为运输服务的直接支出,例如公司支付给承运人的运费。另一方面,诸如燃料、司机工资、运输设备租赁等费用项目,尽管它们具有特定的运输目的,但却被广泛地归为营业费用。在这样做的过程中,这些通常被内部记录为运输成本的费用对投资者、学者或其他与公司季度和年度报告一起提交的财务报表的用户来说是模糊的。由于最近由于自然原因(如大流行病)和人为原因(如外国冲突)造成的供应链中断突出,迫切需要各利益攸关方能够更好地评估公司的物流和运输战略。为此,迫切需要提高运输成本的可见度。因此,我们的目标是为学者提供一个研究议程,以提出运输成本透明度的主题。
{"title":"How Much Did That Cost? A Call for Improved Transportation Cost Transparency","authors":"David Swanson, Y. Jin, Bryan Ashenbaum","doi":"10.5325/transportationj.61.4.0315","DOIUrl":"https://doi.org/10.5325/transportationj.61.4.0315","url":null,"abstract":"Abstract:In 2021 business logistics costs in the United States were 8 percent of the nation’s GDP. However, significant discrepancies exist between aggregated transportation costs and those recorded at the firm level. Under generally accepted accounting principles (GAAP)—a standard for publicly traded companies in the United States must abide—transportation costs are generally recognized as direct expenditure on transportation services, such as when firms pay a carrier for transporting freight. On the other hand, expense items such as fuel, driver wages, leases on transportation equipment are instead broadly grouped under operating expenses despite their specific transportation purposes. In doing so, these expenses that are typically recorded internally as transportation costs are obfuscated to investors, scholars, or other users of financial statements filed along with company quarterly and annual reports. As recent supply chain disruptions due to both natural (e.g., pandemic) and manmade (e.g., foreign conflicts) causes have highlighted, there is an urgent need for various stakeholders to be able to evaluate firm logistics and transportation strategy with better salience. To that end, improved transportation cost visibility is urgently needed. Therefore, our objective is to provide a research agenda for academics to broach the subject of transportation cost transparency.","PeriodicalId":46529,"journal":{"name":"Transportation Journal","volume":"61 1","pages":"315 - 330"},"PeriodicalIF":2.3,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42679720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1
Order Batching and the Bullwhip Effect Reduction in a Cross-Docking Strategy 交叉对接策略中订单批量与牛鞭效应的减小
IF 2.3 4区 工程技术 Q4 MANAGEMENT Pub Date : 2022-11-21 DOI: 10.5325/transportationj.61.4.0369
Yassine Benrqya
Abstract:The purpose of this article is to analyze the effect of order batching on the bullwhip effect in a cross-docking strategy. The model proposed uses simulation to analyze empirically the impact of order batching on the bullwhip effect in cross-docking strategy compared to traditional warehousing. The study is based on a case study of a fast-moving consumer goods company and a French retailer. In the model, a three-stage supply chain composed of one supplier DC, one retailer DC, and 10 retailer stores is considered. The order-up-to (OUT) level policy is used to control inventory at each stage. The demand is forecasted using a simple moving average scheme. The empirical investigation shows that the use of cross-docking leads to a bull-whip effect gain upstream in the supply chain in all cases and situations. Moreover, we show that there exists a high positive correlation between the physical volume of a product (measured by the number of items per pallet) and the bullwhip effect gain. Finally, the increase in lead time to the stores has little impact on the bullwhip effect gain upstream in the supply chain.
摘要:本文旨在分析交叉对接策略中顺序批处理对牛鞭效应的影响。本文提出的模型采用仿真方法,对比传统仓储,实证分析了交叉对接策略中订单批处理对牛鞭效应的影响。这项研究基于对一家快速消费品公司和一家法国零售商的案例研究。在该模型中,考虑由一个供应商DC、一个零售商DC和10个零售商商店组成的三阶段供应链。订货至(OUT)级别策略用于控制每个阶段的库存。使用简单移动平均线方案预测需求。实证研究表明,在任何情况下,使用交叉对接都会导致供应链上游的牛鞭效应。此外,我们表明,存在一个产品的物理体积之间的高度正相关(通过每个托盘的项目数量测量)和牛鞭效应增益。最后,交货时间的增加对供应链上游的牛鞭效应增益影响不大。
{"title":"Order Batching and the Bullwhip Effect Reduction in a Cross-Docking Strategy","authors":"Yassine Benrqya","doi":"10.5325/transportationj.61.4.0369","DOIUrl":"https://doi.org/10.5325/transportationj.61.4.0369","url":null,"abstract":"Abstract:The purpose of this article is to analyze the effect of order batching on the bullwhip effect in a cross-docking strategy. The model proposed uses simulation to analyze empirically the impact of order batching on the bullwhip effect in cross-docking strategy compared to traditional warehousing. The study is based on a case study of a fast-moving consumer goods company and a French retailer. In the model, a three-stage supply chain composed of one supplier DC, one retailer DC, and 10 retailer stores is considered. The order-up-to (OUT) level policy is used to control inventory at each stage. The demand is forecasted using a simple moving average scheme. The empirical investigation shows that the use of cross-docking leads to a bull-whip effect gain upstream in the supply chain in all cases and situations. Moreover, we show that there exists a high positive correlation between the physical volume of a product (measured by the number of items per pallet) and the bullwhip effect gain. Finally, the increase in lead time to the stores has little impact on the bullwhip effect gain upstream in the supply chain.","PeriodicalId":46529,"journal":{"name":"Transportation Journal","volume":"61 1","pages":"369 - 391"},"PeriodicalIF":2.3,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48566281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
期刊
Transportation Journal
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1