具有不同运营模式的高互联接力运输中的随机服务网络设计
Stochastic Service Network Design with Different Operational Patterns for Hyperconnected Relay Transportation
AI总结：
针对卡车司机短缺问题，提出两阶段随机规划模型，优化高互联接力运输中的司机一致日程与运输成本，并通过美国东南部案例验证其有效性。
摘要：
高互联接力运输使得能够利用短途司机的接力系统来共同完成长途货运，这通过改善工作条件（包括每日返家的可能性、获得一致的日程安排以及促进货物匹配）来解决卡车司机短缺问题的根本原因。本文通过物流平台研究高互联接力运输作为解决卡车司机短缺问题的可持续方案。我们提出一个两阶段规划模型，以在最小化运输成本的同时优化短途司机的一致工作时间表。第一阶段涉及在需求不确定性下开设服务并签约卡车司机，其中每项服务都有服务路线和符合美国联邦短途小时服务法规的近似服务时间表。第二阶段根据需求实现情况，为已开设的服务分配运输能力，并管理货物运输或外包。我们扩展模型公式以考虑各种运营模式（例如，货物装卸或司机交换）和日程一致性要求（例如，每周或每日一致性）。采用基于情景的方法来求解模型，并对美国东南部地区的汽车交付案例进行研究。实验结果验证了所提出的方法，并进一步探讨了随机需求、运营模式、一致日程和运输能力对高互联服务网络设计的影响。本研究旨在为卡车运输行业的从业者提供实用指导。
英文摘要：
Hyperconnected relay transportation enables using a relay system of short-haul drivers to deliver long-haul shipments collectively, which helps address root causes of trucker shortage issues by transforming working conditions with potentials of daily returning home, accessing consistent schedules, and facilitating load matching. This paper investigates hyperconnected relay transportation as a sustainable solution to trucker shortage issues through a logistics platform. We propose a two-stage programming model to optimize consistent working schedules for short-haul drivers while minimizing transportation costs. The first stage involves opening services and contracting truckers under demand uncertainty, where each service has a service route and approximate service schedules adhering to USA federal short-haul hour-of-service regulations. The second stage assigns hauling capacities to open services and manages commodity shipping or outsourcing given the demand realization. We extend the model formulation to account for various operational patterns (e.g., freight loading and unloading or hauler swapping) and schedule consistency requirements (e.g., weekly or daily consistency). A scenario-based approach is employed to solve the model for a case study of automotive delivery in the Southeast USA region. The experimental results validate the proposed approach, and further explore the impact of stochastic demands, operational patterns, consistent schedules, and hauling capacities on hyperconnected service network design. This research aims to offer practical guidance to practitioners in the trucking industry.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
