Stochastic Service Network Design with Different Operational Patterns for Hyperconnected Relay Transportation

TL;DR

This paper develops a stochastic programming model for hyperconnected relay transportation, optimizing driver schedules and operational patterns to address trucker shortages and improve logistics efficiency.

Contribution

It introduces a two-stage stochastic programming framework that incorporates various operational patterns and schedule consistency constraints for hyperconnected relay networks.

Findings

Model effectively handles demand uncertainty and operational pattern variations.

Operational patterns significantly impact network design and costs.

Case study validates model applicability and provides practical insights.

Abstract

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.