Automated Parcel Locker Configuration Using Discrete Event Simulation

Automated parcel lockers (APLs) are transforming urban last-mile delivery by reducing failed distributions, decoupling delivery from recipient availability, optimizing carrier routes, reducing carbon foot-print and mitigating traffic congestion. The paper investigates the optimal design of APLs syst...

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Main Authors: Eugen Rosca, Floriana Cristina Oprea, Anamaria Ilie, Stefan Burciu, Florin Rusca
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Systems
Subjects:
Online Access:https://www.mdpi.com/2079-8954/13/7/613
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author Eugen Rosca
Floriana Cristina Oprea
Anamaria Ilie
Stefan Burciu
Florin Rusca
author_facet Eugen Rosca
Floriana Cristina Oprea
Anamaria Ilie
Stefan Burciu
Florin Rusca
author_sort Eugen Rosca
collection DOAJ
description Automated parcel lockers (APLs) are transforming urban last-mile delivery by reducing failed distributions, decoupling delivery from recipient availability, optimizing carrier routes, reducing carbon foot-print and mitigating traffic congestion. The paper investigates the optimal design of APLs systems under stochastic demand and operational constraints, formulating the problem as a resource allocation optimization with service-level guarantees. We proposed a data-driven discrete-event simulation (DES) model implemented in ARENA to (i) determine optimal locker configurations that ensure customer satisfaction under stochastic parcel arrivals and dwell times, (ii) examine utilization patterns and spatial allocation to enhance system operational efficiency, and (iii) characterize inventory dynamics of undelivered parcels and evaluate system resilience. The results show that the configuration of locker types significantly influences the system’s ability to maintain high customers service levels. While flexibility in locker allocation helps manage excess demand in some configurations, it may also create resource competition among parcel types. The heterogeneity of locker utilization gradients underscores that optimal APLs configurations must balance locker units with their size-dependent functional interdependencies. The Dickey–Fuller GLS test further validates that postponed parcels exhibit stationary inventory dynamics, ensuring scalability for logistics operators. As a theoretical contribution, the paper demonstrates how DES combined with time-series econometrics can address APLs capacity planning in city logistics. For practitioners, the study provides a decision-support framework for locker sizing, emphasizing cost–service trade-offs.
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institution Kabale University
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publishDate 2025-07-01
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spelling doaj-art-6aff3f016bb94b36bf6ee505e8b2163e2025-08-20T03:56:45ZengMDPI AGSystems2079-89542025-07-0113761310.3390/systems13070613Automated Parcel Locker Configuration Using Discrete Event SimulationEugen Rosca0Floriana Cristina Oprea1Anamaria Ilie2Stefan Burciu3Florin Rusca4Transport, Traffic and Logistics Department, National University of Science and Technology Politehnica Bucharest, 313 Splaiul Independentei, 060042 Bucharest, RomaniaTransport, Traffic and Logistics Department, National University of Science and Technology Politehnica Bucharest, 313 Splaiul Independentei, 060042 Bucharest, RomaniaTransport, Traffic and Logistics Department, National University of Science and Technology Politehnica Bucharest, 313 Splaiul Independentei, 060042 Bucharest, RomaniaTransport, Traffic and Logistics Department, National University of Science and Technology Politehnica Bucharest, 313 Splaiul Independentei, 060042 Bucharest, RomaniaTransport, Traffic and Logistics Department, National University of Science and Technology Politehnica Bucharest, 313 Splaiul Independentei, 060042 Bucharest, RomaniaAutomated parcel lockers (APLs) are transforming urban last-mile delivery by reducing failed distributions, decoupling delivery from recipient availability, optimizing carrier routes, reducing carbon foot-print and mitigating traffic congestion. The paper investigates the optimal design of APLs systems under stochastic demand and operational constraints, formulating the problem as a resource allocation optimization with service-level guarantees. We proposed a data-driven discrete-event simulation (DES) model implemented in ARENA to (i) determine optimal locker configurations that ensure customer satisfaction under stochastic parcel arrivals and dwell times, (ii) examine utilization patterns and spatial allocation to enhance system operational efficiency, and (iii) characterize inventory dynamics of undelivered parcels and evaluate system resilience. The results show that the configuration of locker types significantly influences the system’s ability to maintain high customers service levels. While flexibility in locker allocation helps manage excess demand in some configurations, it may also create resource competition among parcel types. The heterogeneity of locker utilization gradients underscores that optimal APLs configurations must balance locker units with their size-dependent functional interdependencies. The Dickey–Fuller GLS test further validates that postponed parcels exhibit stationary inventory dynamics, ensuring scalability for logistics operators. As a theoretical contribution, the paper demonstrates how DES combined with time-series econometrics can address APLs capacity planning in city logistics. For practitioners, the study provides a decision-support framework for locker sizing, emphasizing cost–service trade-offs.https://www.mdpi.com/2079-8954/13/7/613automated parcel lockercity logisticslast-mile deliverybatch queueingcapacity optimizationlockers configuration
spellingShingle Eugen Rosca
Floriana Cristina Oprea
Anamaria Ilie
Stefan Burciu
Florin Rusca
Automated Parcel Locker Configuration Using Discrete Event Simulation
Systems
automated parcel locker
city logistics
last-mile delivery
batch queueing
capacity optimization
lockers configuration
title Automated Parcel Locker Configuration Using Discrete Event Simulation
title_full Automated Parcel Locker Configuration Using Discrete Event Simulation
title_fullStr Automated Parcel Locker Configuration Using Discrete Event Simulation
title_full_unstemmed Automated Parcel Locker Configuration Using Discrete Event Simulation
title_short Automated Parcel Locker Configuration Using Discrete Event Simulation
title_sort automated parcel locker configuration using discrete event simulation
topic automated parcel locker
city logistics
last-mile delivery
batch queueing
capacity optimization
lockers configuration
url https://www.mdpi.com/2079-8954/13/7/613
work_keys_str_mv AT eugenrosca automatedparcellockerconfigurationusingdiscreteeventsimulation
AT florianacristinaoprea automatedparcellockerconfigurationusingdiscreteeventsimulation
AT anamariailie automatedparcellockerconfigurationusingdiscreteeventsimulation
AT stefanburciu automatedparcellockerconfigurationusingdiscreteeventsimulation
AT florinrusca automatedparcellockerconfigurationusingdiscreteeventsimulation