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Impacts of innovations and policies on sustainability within road freight transport: using a system thinking lens
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.). KTH, School of Industrial Engineering and Management (ITM), Centres, Integrated Transport Research Lab, ITRL. (Integrated Transport Research Lab)ORCID iD: 0000-0002-0575-5213
2024 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Road freight transport systems are complex socio-technical systems where freight services are provided through various technological solutions, with the involvement of several stakeholders. Despite the benefits of road freight transport to the economy and society, it also has substantial drawbacks for our current and future society, such as greenhouse gas emissions, congestion, air pollution, noise and poor working conditions. Therefore, several transport concepts and policies, such as electric vehicles and carbon taxes, are being explored and implemented within the private and public sectors to mitigate the externalities of road freight transport systems and achieve more sustainable systems.

Understanding sustainability transitions requires a holistic approach that includes multiple dimensions of sustainability and the perspectives of various stakeholders. Therefore, this thesis uses a System Thinking lens to achieve a system-level understanding of sustainability. Moreover, the dynamics and feedback structures of sustainability transitions are considered in order to identify leverage points and avoid policy resistance.

This thesis aims to understand the impacts of transport concepts and policies on the sustainability of road freight transport systems. A mixed-method approach, including surveys, interviews, and System Dynamics modelling is used to study the impacts of COVID-19 regulations, electric trucks, city hubs, cargo bikes, automation and off-peak hour deliveries. Moreover, policies impacting the adoption of electric trucks and city hubs are explored.

This thesis's results indicate that collaboration is required to achieve sustainability. However, collaboration is complex since stakeholders often have conflicting goals. Applying System Dynamics as a modelling method allows for understanding the right place and time to implement various policies. In this thesis, the simulation of different policy scenarios enables the consideration of the consequences of these policies from both short- and long-term perspectives. This knowledge benefits decision-makers in the private and public sectors in making decisions that shift road freight transport systems towards sustainability.

Abstract [sv]

Vägtransportsystem för gods är komplexa socio-tekniska system där godstransporter tillhandahålls genom olika teknologiska lösningar, med inblandning av flera intressenter. Trots de fördelar som vägtransporter för gods har för ekonomin och samhället, medför de också betydande nackdelar för vårt nuvarande och framtida samhälle, såsom utsläpp av växthusgaser, trängsel, luftföroreningar, buller och dåliga arbetsförhållanden. Därför utforskas och implementeras flera transportkoncept och policyer, som elfordon och koldioxidskatter, inom både den privata och offentliga sektorn för att minska de negativa effekterna av vägtransportsystem för gods och uppnå mer hållbara system.

För att förstå hållbara omställningar krävs ett holistiskt angreppssätt som inkluderar flera dimensioner av hållbarhet och flera perspektiv från olika intressenter. Denna avhandling använder därför ett Systemtänkande för att uppnå en förståelse av hållbarhet på systemnivå. Dessutom beaktas dynamiken och återkopplingsstrukturerna i hållbara omställningar för att identifiera hävstångspunkter och undvika policyresistens.

Syftet med denna avhandling är att förstå effekterna av transportkoncept och policyer på hållbarheten i vägtransportsystem för gods. En blandning av metoder som inkluderar enkäter, intervjuer och systemdynamisk modellering används för att studera effekterna av i) COVID-19-regleringar, ii) el-lastbilar, iii) stadshubbar, iv) lastcyklar, v) automatisering och vi) nattleveranser. Dessutom utforskas policyer som påverkar införandet av el-lastbilar och stadshubbar.

Resultaten från denna avhandling visar att samarbete krävs för att uppnå hållbarhet. Samarbete är dock komplext eftersom intressenter ofta har motstridiga mål. Därför behövs offentliga policyer. Genom att tillämpa systemdynamik som modelleringsmetod möjliggörs en förståelse för rätt plats och rätt tid att implementera olika policyer. Simulering av olika policyscenarier ger möjlighet att överväga dessa konsekvenser ur både kort- och långsiktiga perspektiv. Denna kunskap är till nytta för beslutsfattare inom privat och offentlig sektor när de ska fatta beslut för omställning till hållbara godstransportsystem.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2024. , p. 112
Series
TRITA-ITM-AVL ; 2024:20
Keywords [en]
road freight transport systems; sustainability transitions; System Thinking; System Dynamics; policy analysis.
Keywords [sv]
vägtransportsystem för gods; hållbara omställningar; systemtänkande; systemdynamik; policysanalys.
National Category
Transport Systems and Logistics
Research subject
Machine Design
Identifiers
URN: urn:nbn:se:kth:diva-355123ISBN: 978-91-8106-100-0 (print)OAI: oai:DiVA.org:kth-355123DiVA, id: diva2:1908703
Public defence
2024-12-03, F3 / https://kth-se.zoom.us/j/66583637885, Lindstedtsvägen 26-28, Stockholm, 10:15 (English)
Opponent
Supervisors
Projects
HITS 2024
Funder
Vinnova, 2020-00565Available from: 2024-11-04 Created: 2024-10-28 Last updated: 2024-11-27Bibliographically approved
List of papers
1. Transition from physical to online shopping alternatives due to the COVID-19 pandemic: A case study of Italy and Sweden
Open this publication in new window or tab >>Transition from physical to online shopping alternatives due to the COVID-19 pandemic: A case study of Italy and Sweden
2023 (English)In: Transportation Research Part A: Policy and Practice, ISSN 0965-8564, E-ISSN 1879-2375, Vol. 171, article id 103644Article in journal (Refereed) Published
Abstract [en]

Using 530 responses from an online questionnaire, this study aims to investigate the transition from physical to online shopping alternatives during the first wave of the COVID-19 pandemic at the individual level. The focus areas of the study are Sweden and Italy, two European countries that implemented contrasting prevention measures. This study analyses the impacts of the pandemic on the transition to online shopping activities, and identifies who among the respondents changed their shopping behaviour the most and how; and what the different shopping strategies are and who adopted them. Multivariate statistical analyses, including linear and binary logistic regressions and multinomial logit models, were used to analyse the dataset. In the analysis, the dataset was split between Italy and Sweden to take into account the contrasting prevention measures and the different social and economic backgrounds of the two countries; the results of this study confirm and highlight these differences. Moreover, the socio-demographic and household structures of the respondents were found to influence the amount and the direction of change in shopping behaviour during the first wave of the pandemic. The study also indicates some policies that can be implemented and/or further strengthened to increase the resilience of citizens in facing pandemics and to derive benefit from the behavioural changes that took place during the first wave of the pandemic.

Place, publisher, year, edition, pages
Elsevier BV, 2023
Keywords
Behavioural change, COVID-19, Online shopping, Prevention measures
National Category
Business Administration
Identifiers
urn:nbn:se:kth:diva-330985 (URN)10.1016/j.tra.2023.103644 (DOI)001035781500001 ()36960356 (PubMedID)2-s2.0-85150774941 (Scopus ID)
Note

QC 20230705

Available from: 2023-07-05 Created: 2023-07-05 Last updated: 2024-10-28Bibliographically approved
2. Indicators for Sustainability Assessment in City Logistics: Perspectives of Society and Logistic Service Providers
Open this publication in new window or tab >>Indicators for Sustainability Assessment in City Logistics: Perspectives of Society and Logistic Service Providers
2023 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

The urban logistics system greatly affects the liveability of the urban environment and the health of citizens through transport-related externalities. Urban logistics practices are being implemented to contribute to the sustainability of the urban environment. To make informed decisions, actors and stakeholders require knowledge about these practices and their impacts. This paper proposes a set of measurable indicators for sustainability assessment. For assessing sustainability, it is key to comprehensively consider sustainability dimensions. Therefore, the starting point of this paper is the Sustainable Development Goals (SDGs), to have a holistic view of sustainability, combined with existing indicators in the city logistics literature, to ensure relevance to the context. Moreover, it is important to consider the perspective of different actors and stakeholders. The novelty of this work is the definition of indicators from the perspectives of both the citizens as stakeholders and the logistics service providers as actors. The set of indicators is tested in two previous studies, showing that it is possible to evaluate the sustainability performance of urban logistics practices. Future work includes using the set of indicators in a real case study, to test the attainability and relevance of the indicators. This set of indicators should be used to evaluate urban logistics practices, with the aim of increasing the knowledge that actors in the urban freight transport system have regarding these practices. This knowledge can help decision-makers in the private and public sectors to make decisions that facilitate a more sustainable urban freight transport system. 

Place, publisher, year, edition, pages
Elsevier BV, 2023
Keywords
Urban logistics systems, sustainability assessment, system impacts, urban logistics concepts
National Category
Transport Systems and Logistics
Research subject
Transport Science, Transport Systems
Identifiers
urn:nbn:se:kth:diva-355107 (URN)10.2139/ssrn.4034714 (DOI)
Conference
2023 Transportation Research Board Annual Meeting, January 8 to 12, 2023, Washington, D.C, USA
Note

QC 20241023

Available from: 2024-10-22 Created: 2024-10-22 Last updated: 2024-10-28Bibliographically approved
3. Categorization of urban logistics concepts according to their sustainability performance
Open this publication in new window or tab >>Categorization of urban logistics concepts according to their sustainability performance
2023 (English)In: 2022 Conference Proceedings Transport Research Arena, TRA Lisbon 2022, Elsevier BV , 2023, Vol. 72, p. 2708-2715Conference paper, Published paper (Refereed)
Abstract [en]

The transport-related externalities of the urban logistics system impact the urban environment and the health of the citizens: there is a need to improve the sustainability of the system. In this paper, we use a framework for sustainability performance abessment and a literature review to analyse the urban logistics concepts of electrification, consolidation, cargo bikes and automation. In the literature, there is a focus on pollution, while a holistic perspective on sustainability is lacking. A Sustainability Performance Abessment (SPA) matrix is the main result of this paper, as a tool for comparing the concepts and understanding how they can be combined to achieve integrated benefits. To make informed decisions, stakeholders need knowledge from a holistic perspective. The findings presented in this paper are a first step to achieving this required knowledge.

Place, publisher, year, edition, pages
Elsevier BV, 2023
Keywords
Automation, Cargo Bikes, Consolidation, Electrification, Sustainability, Urban Logistics
National Category
Transport Systems and Logistics
Identifiers
urn:nbn:se:kth:diva-342804 (URN)10.1016/j.trpro.2023.11.811 (DOI)2-s2.0-85182951868 (Scopus ID)
Conference
2022 Conference Proceedings Transport Research Arena, TRA Lisbon 2022, Lisboa, Portugal, Nov 14 2022 - Nov 17 2022
Note

QC 20240208

Available from: 2024-01-31 Created: 2024-01-31 Last updated: 2024-10-28Bibliographically approved
4. The role of battery electric vehicles in off-peak hour deliveries: Sustainability assessment of a case study in Stockholm
Open this publication in new window or tab >>The role of battery electric vehicles in off-peak hour deliveries: Sustainability assessment of a case study in Stockholm
2024 (English)In: Cleaner Logistics and Supply Chain, ISSN 2772-3909, Vol. 13, p. 100175-100175, article id 100175Article in journal (Refereed) Published
Abstract [en]

City logistics faces critical challenges in optimising resource management, utilising time effectively, and reducing costs, particularly in the context of growing environmental concerns. Battery Electric Vehicles (BEVs) and Off-Peak Hour Deliveries (OPHD) have emerged as promising solutions. Despite considerable research efforts, more research is needed to evaluate the impacts of using BEVs during OPHD. To address this need, this paper describes how data from a case study in Stockholm were used to develop a comprehensive overview of the sustainability impacts of OPHD carried out with BEV. A multi-method approach was applied, including an indicator framework, Life Cycle Costing, and a Social Life Cycle Assessment to consider all sustainability dimensions holistically. Our findings reveal that, while BEVs are not yet cost-competitive with Internal Combustion Engine vehicles for daytime operations, OPHD can mitigate these costs by increasing the vehicle utilisation and distances travelled. Furthermore, OPHD with BEV can offer substantial benefits by increasing accessibility and reducing emissions. However, challenges such as increased employee-related transport costs and infrastructure needs must be addressed. The main contributions of this paper are practical, as we add knowledge about the impacts of OPHD using BEV, and methodological, as we used a multi-method approach to holistically assess sustainability impacts. Future research should focus on long-term impacts and refine assessment methods to support the sustainable development of urban logistics. This study highlights the importance of using holistic sustainability assessment to inform and enable stakeholders and decision-makers to leverage the full potential of OPHD when shifting to more sustainable transport.

Keywords
Battery Electric Vehicles, Off-Peak Hour Deliveries, Indicator-Based Sustainability Assessment, Life Cycle Costing, Social Life Cycle Assessment
National Category
Transport Systems and Logistics
Research subject
Transport Science, Transport Systems
Identifiers
urn:nbn:se:kth:diva-355118 (URN)10.1016/j.clscn.2024.100175 (DOI)001333196600001 ()2-s2.0-85205933153 (Scopus ID)
Funder
Vinnova, 2020\u201300565
Note

QC 20241029

Available from: 2024-10-23 Created: 2024-10-23 Last updated: 2024-10-29Bibliographically approved
5. Towards sustainable urban logistics: Exploring the implementation of city hubs through system dynamics
Open this publication in new window or tab >>Towards sustainable urban logistics: Exploring the implementation of city hubs through system dynamics
2024 (English)In: Transportation Research Interdisciplinary Perspectives, E-ISSN 2590-1982, Vol. 27, article id 101204Article in journal (Refereed) Published
Abstract [en]

The urban logistics system causes negative externalities, such as pollution, noise and congestion. This study focuses on city hubs as a concept to reduce these externalities by improving consolidation and adopting zero-emission vehicles. Our research employs system dynamics as a method to uncover the dynamics and mechanisms related to the barriers and potentials of city hub implementation in Stockholm from the perspectives of the Logistic Service Providers (LSPs), the receivers and the public sector. Moreover, a mixed method approach is used for data collection, allowing us to extract the knowledge from the real implementation case, co-create a qualitative model as a Causal Loop Diagram (CLD) with the stakeholders involved in the system, and generalise the model. The mixed method approach includes a group model-building workshop, literature review, existing city hub analysis and stakeholder interviews. The main result is a CLD, visualising the dynamics of the introduction of city hubs. The CLD explores three potential incentives and policies: (i) the receivers change address; (ii) shippers oblige LSPs to use the hubs; (iii) the public sector gives monetary incentives to LSPs. The CLD presented in this paper establishes a validated system structure for the urban logistic system and facilitates the policymakers' understanding of the barriers to implementing city hubs and what policies could help their implementation.

Place, publisher, year, edition, pages
Elsevier BV, 2024
Keywords
Urban logistics, Sustainability, Consolidation, System dynamics, City hubs
National Category
Transport Systems and Logistics
Identifiers
urn:nbn:se:kth:diva-353173 (URN)10.1016/j.trip.2024.101204 (DOI)001301490600001 ()2-s2.0-85201784336 (Scopus ID)
Note

QC 20240912

Available from: 2024-09-12 Created: 2024-09-12 Last updated: 2024-10-28Bibliographically approved
6. Exploring conditions for economical sustainability of city hubs adoption in urban logistics - A system dynamics approach
Open this publication in new window or tab >>Exploring conditions for economical sustainability of city hubs adoption in urban logistics - A system dynamics approach
(English)Manuscript (preprint) (Other academic)
Abstract [en]

Transport-related externalities have a negative impact on urban environments and public health. There- fore, urban logistic systems encounter significant challenges when it comes to sustainability. One urban transport strategy is city hubs, as these can achieve a more effective system with lower externalities. However, city hubs have yet to realise their full potential due to the challenges of their implementation, which are mainly economical. This paper investigates the dynamics of city hub implementation from the perspectives of the Logistic Service Providers (LSPs), the hub operator and the receivers of the goods. Drawing from qualitative and quantitative insights from a case study in Stockholm, a system dynamics model is built to understand these dynamics. The results of the model demonstrate that the city hub is economically sustainable only if collaboration is achieved between LSPs and receivers. However, even when this collaboration is achieved, the total system cost increases. When collaboration between actors cannot be achieved, the public sector’s involvement is crucial to achieving city hub adoption. The results also show that implementing an environmental zone where internal combustion engine vehicles are forbidden entry does not help the city hub adoption, as the share of the LSPs cost spent on vehicles is relatively low compared to salary cost and fuel cost. Therefore, policies favouring the actors involved in the scheme should be considered. The main contribution of this paper lies in identifying possible strategies and outcomes of city hub implementation within the studied area and providing guidance for policymakers on policies for city hub implementation. Moreover, the model can be adapted to other case studies by adjusting the input data, thereby serving as a tool for policymakers in different geographical contexts.

Keywords
sustainable urban logistics; system dynamics modelling; city hubs; urban logistics policies; economical sustainability
National Category
Transport Systems and Logistics
Research subject
Transport Science, Transport Systems
Identifiers
urn:nbn:se:kth:diva-355122 (URN)
Note

QC 20241024

Available from: 2024-10-23 Created: 2024-10-23 Last updated: 2024-10-28Bibliographically approved
7. A System Dynamics perspective on the willingness of freight receivers to pay for city hubs
Open this publication in new window or tab >>A System Dynamics perspective on the willingness of freight receivers to pay for city hubs
(English)Manuscript (preprint) (Other academic)
Abstract [en]

Through consolidation, city hubs offer potential solutions to sustainability challenges in urbanfreight systems. However, the viability of such hubs has been questioned, as the willingness topay of businesses receiving goods has been an issue. This study employs a system dynamicsapproach to explore this willingness to pay in consolidation initiatives by quantifying thebenefits receivers can gain, thus bridging a gap in the literature. The system dynamics methodallows a holistic view of the system. Therefore, a quantitative model is built to explore thebehaviour of the businesses receiving goods and their interests in value-added services. Datafrom a case study in Stockholm is used as quantitative input. Moreover, sixteen businesses inthe area are interviewed to understand their needs and to create different scenarios. The analysisof the interviews reveals that the level of interest in value-added services varies depending onthe type of business. Four types of receivers are identified: large offices, small offices, largeshops, and small shops. The model results show that the main benefits for the receivers are timesavings in handling deliveries, leading to cost savings and the use of the city hub for storage.The results of this research can be used by decision-makers in the private and public sectors tounderstand the dynamics of city hubs and to formulate effective policies for the success of thesehubs. The originality of this study lies in the combination of the system dynamic approach andthe receivers’ perspective, which is relatively underexplored. The results can thus providevaluable insights in achieving viable consolidation solutions.

Keywords
city hubs; sustainable urban logistics; sustainable transport; system dynamics, urban consolidation.
National Category
Transport Systems and Logistics
Research subject
Transport Science, Transport Systems
Identifiers
urn:nbn:se:kth:diva-355121 (URN)
Note

QC 20241023

Available from: 2024-10-23 Created: 2024-10-23 Last updated: 2024-10-28Bibliographically approved
8. How Does Electrification Impact Road Freight Transport Efficiency? A System Dynamics Approach
Open this publication in new window or tab >>How Does Electrification Impact Road Freight Transport Efficiency? A System Dynamics Approach
2024 (English)Manuscript (preprint) (Other academic)
Abstract [en]

This paper explores the system-level impacts of electrification on road freight transport efficiency, as a complex concept with involvement of various stakeholders. Introducing electrification adds further complexity, bringing in new stakeholders, dynamics, and efficiencies. The paper utilises system dynamics modelling to understand the dynamics between different efficiencies and the impact of electrification. The results of the simulation model highlight that there are trade-offs between different kinds of efficiencies, and it is essential to achieve a balance. Moreover, worse-before-better behaviour should be expected, as electrification initially increases costs but has lower costs in the long term. The results point to two phases of E-truck adoption: during the first phase, the policy focus should be on expanding charging infrastructure; during the second phase, cost-focused policies become critical to boosting electrification. By understanding the impact of different policies, this paper offers valuable knowledge to decision-makers navigating the transition towards a more sustainable system. 

Keywords
transport efficiency, road freight transport system, electrification, electric trucks, system dynamics, policy analysis.
National Category
Transport Systems and Logistics
Research subject
Transport Science, Transport Systems
Identifiers
urn:nbn:se:kth:diva-355120 (URN)10.2139/ssrn.4948350 (DOI)
Note

QC 20241023

Available from: 2024-10-23 Created: 2024-10-23 Last updated: 2024-11-26Bibliographically approved

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