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Dr. Christoph Kogler
University of Natural Resources and Life Science, Vienna

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Research Keywords & Expertise

0 Business Management
0 Business Process Re-engineering
0 Discrete Event Simulation
0 Logistics
0 Production Management

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Short Biography

CHRISTOPH KOGLER is a postdoctoral researcher and lecturer for Production Management and Business Management at the University of Natural Resources and Life Science Vienna and lecturer for Process Modeling and Simulation at the University of Applied Sciences Campus Vienna. His research focus on supply chain management, logistics and strategic analyses for the wood-based industry with methods such as simulation, optimization, business process modeling, SWOT analysis and empirical surveys.

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Journal article
Published: 13 August 2021 in Forests
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Intense international competition pushes the actors of wood supply chains to implement efficient wood supply chain management incorporating coordinated cost-saving strategies to remain competitive. In order to observe the effects of individual and coordinated decision making, mixed-integer programming models for forestry, round-wood transport, and the wood-based industry were developed and integrated. The models deal with operational planning issues regarding production, harvest, and transport and are solved sequentially for individual cost optimization of each wood supply chain actor as well as simultaneously by a combined model representing joint cost optimization in an integrated wood supply chain. This allows for the first time, benchmarking relative cost-saving potential of the wood procurement strategies coordinated transports, integrated supply chains, satellite stockyards, and higher truck payloads within a single case study setting. Based on case study data from southern Austria, results show the advantages of an integrated supply chain with a cost-saving potential of up to 24%. Higher truck payloads reinforce this potential and enable up to 40% savings compared to the predominant wood procurement situation in Central Europe. Wood supply chain integration for Central European circumstances seems to be feasible only for a limited consortium of a few companies, for example when restricted to a wood-buying syndicate supplying several industry plants or a few large forest enterprises, especially as both groups are commonly steering wood transport on their own. Consequently, further research on the challenging task of implementing integrated supply chains using the opportunities of digitalization to realize existing cost savings potential by deepening cooperation and intensifying information exchange is needed.

ACS Style

Christoph Kogler; Sophie Schimpfhuber; Clemens Eichberger; Peter Rauch. Benchmarking Procurement Cost Saving Strategies for Wood Supply Chains. Forests 2021, 12, 1086 .

AMA Style

Christoph Kogler, Sophie Schimpfhuber, Clemens Eichberger, Peter Rauch. Benchmarking Procurement Cost Saving Strategies for Wood Supply Chains. Forests. 2021; 12 (8):1086.

Chicago/Turabian Style

Christoph Kogler; Sophie Schimpfhuber; Clemens Eichberger; Peter Rauch. 2021. "Benchmarking Procurement Cost Saving Strategies for Wood Supply Chains." Forests 12, no. 8: 1086.

Journal article
Published: 25 November 2020 in Forests
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Forestry faces frequent and severe natural calamities causing high amounts of salvage wood. Especially under mountainous conditions, regional available self-loading truck capacity is often the main limiting factor causing transport capacity bottlenecks. Therefore, innovative logistics strategies are needed to ensure quick transport of high amounts of salvage wood. Consequently, a multi-echelon unimodal transport concept, where timber is synchronously transshipped at a truck terminal with four transshipment lots from self-loading trucks to semitrailers, was modeled by means of a discrete event simulation. The simulation model calculates key performance indicators such as transshipped volumes and costs and support estimations of optimal truck fleet configuration. The results provide cost-optimal truck fleet configurations in terms of the number of self-loading trucks, semitrailers and prime mover trucks for varying transshipment volumes, delivery time to terminal and legal truck payload scenarios. Applying the truck terminal concept considerably decreases the number of self-loading trucks needed to transport the same volume when compared to unimodal wood transport, which is most common under mountainous conditions in Europe. In the majority of delivery time to terminal and terminal transshipment volume scenarios, the number of self-loading trucks was reduced by more than 50%. Increasing the legal gross vehicle weight for timber transport from 44 t up to 50 t reduces the number of self-loading trucks needed by 20% to 38%, depending on the scenario setting. Additionally, less self-loading trucks arriving at the terminal also cuts queuing times and system efficiency increases as transport cost/t is reduced by 6% to 11% depending on the scenario setting. Expanding the truck terminal concept by adding storage capacity as well as varying the number of transshipping lots and also including costs for terminal construction and operations in the economic analyses are promising topics for future studies.

ACS Style

Christoph Kogler; Alexander Stenitzer; Peter Rauch. Simulating Combined Self-Loading Truck and Semitrailer Truck Transport in the Wood Supply Chain. Forests 2020, 11, 1245 .

AMA Style

Christoph Kogler, Alexander Stenitzer, Peter Rauch. Simulating Combined Self-Loading Truck and Semitrailer Truck Transport in the Wood Supply Chain. Forests. 2020; 11 (12):1245.

Chicago/Turabian Style

Christoph Kogler; Alexander Stenitzer; Peter Rauch. 2020. "Simulating Combined Self-Loading Truck and Semitrailer Truck Transport in the Wood Supply Chain." Forests 11, no. 12: 1245.

Journal article
Published: 15 September 2020 in International Journal of Simulation Modelling
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ACS Style

Christoph Kogler; P. Rauch. Game-Based Workshops for the Wood Supply Chain to Facilitate Knowledge Transfer. International Journal of Simulation Modelling 2020, 19, 446 -457.

AMA Style

Christoph Kogler, P. Rauch. Game-Based Workshops for the Wood Supply Chain to Facilitate Knowledge Transfer. International Journal of Simulation Modelling. 2020; 19 (3):446-457.

Chicago/Turabian Style

Christoph Kogler; P. Rauch. 2020. "Game-Based Workshops for the Wood Supply Chain to Facilitate Knowledge Transfer." International Journal of Simulation Modelling 19, no. 3: 446-457.

Journal article
Published: 02 April 2020 in Forests
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Wood supply chain performance suffers from risks intensified by more frequent and extreme natural calamities such as windstorms, bark beetle infestations, and ice-break treetops. In order to limit further damage and wood value loss after natural calamities, high volumes of salvage wood have to be rapidly transported out of the forest. In these cases, robust decision support and coordinated management strategies based on advanced contingency planning are needed. Consequently, this study introduces a contingency planning toolbox consisting of a discrete event simulation model setup for analyses on an operational level, strategies to cope with challenging business cases, as well as transport templates to analyze outcomes of decisions before real, costly, and long-lasting changes are made. The toolbox enables wood supply managers to develop contingency plans to prepare for increasing risk events and more frequent natural disturbances due to climate change. Crucial key performance indicators including truck to wagon ratios, truck and wagon utilization, worktime coordination, truck queuing times, terminal transhipment volume, and required stockyard are presented for varying delivery time, transport tonnage, and train pick-up scenarios. The strategy BEST FIT was proven to provide robust solutions which saves truck and train resources, as well as keeps transhipment volume on a high level and stockyard and queuing time on a low level. Permission granted for increased truck transport tonnages was evaluated as a potential means to reduce truck trips, if working times and train pick-ups are coordinated. Furthermore, the practical applicability for contingency planning is demonstrated by highly relevant business cases such as limited wagon or truck availability, defined delivery quota, terminal selection, queuing time reduction, or scheduled stock accumulation. Further research should focus on the modeling and management of log quality deterioration and the resulting wood value loss caused by challenging transport and storage conditions.

ACS Style

Christoph Kogler; Peter Rauch. Contingency Plans for the Wood Supply Chain Based on Bottleneck and Queuing Time Analyses of a Discrete Event Simulation. Forests 2020, 11, 396 .

AMA Style

Christoph Kogler, Peter Rauch. Contingency Plans for the Wood Supply Chain Based on Bottleneck and Queuing Time Analyses of a Discrete Event Simulation. Forests. 2020; 11 (4):396.

Chicago/Turabian Style

Christoph Kogler; Peter Rauch. 2020. "Contingency Plans for the Wood Supply Chain Based on Bottleneck and Queuing Time Analyses of a Discrete Event Simulation." Forests 11, no. 4: 396.

Journal article
Published: 01 October 2019 in Canadian Journal of Forest Research
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Increasing occurrences of natural disturbances, including windstorms and high snow cover, and supply chain risks lead to severe irregularities in wood harvest and transport. To overcome resulting supply difficulties, innovative multimodal systems via rail terminals are promising options offering the potential to increase buffer capacity, improve supply chain resilience, and reduce greenhouse gas emissions. Therefore, a train terminal is included in a virtual simulation environment spanning the entire wood supply chain from forest to industry to test, analyze, and evaluate a complex multimodal system in different scenario settings. Furthermore, the simulation model provides intuitive decision support through animation and a cockpit of key performance indicators, facilitating hands-on workshops with supply chain managers. Results show the advantage of a combination of unimodal and multimodal transport in the wood supply chain of the observed case-study region. This combination proves to be resilient and outperforms other tested supply chain strategies by avoiding both bottlenecks and ill-timed plans and reducing carbon dioxide (CO2) emissions. Furthermore, workshops conducted with industry experts indicate that adapting collaborative supply chain control strategies by means of a participatory simulation environment enhances the development of advanced risk management and therefore improves supply chain resilience, efficiency, and sustainability.

ACS Style

Christoph Kogler; Peter Rauch. A discrete-event simulation model to test multimodal strategies for a greener and more resilient wood supply. Canadian Journal of Forest Research 2019, 49, 1298 -1310.

AMA Style

Christoph Kogler, Peter Rauch. A discrete-event simulation model to test multimodal strategies for a greener and more resilient wood supply. Canadian Journal of Forest Research. 2019; 49 (10):1298-1310.

Chicago/Turabian Style

Christoph Kogler; Peter Rauch. 2019. "A discrete-event simulation model to test multimodal strategies for a greener and more resilient wood supply." Canadian Journal of Forest Research 49, no. 10: 1298-1310.

Journal article
Published: 01 January 2018 in Silva Fennica
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This review systematically analyses and classifies research and review papers focusing on discrete event simulation applied to wood transport, and therefore illustrates the development of the research area from 1997 until 2017. Discrete event simulation allows complex supply chain models to be mapped in a straightforward manner to study supply chain dynamics, test alternative strategies, communicate findings and facilitate understanding of various stakeholders. The presented analyses confirm that discrete event simulation is well-suited for analyzing interconnected wood supply chain transportation issues on an operational and tactical level. Transport is the connective link between interrelated system components of the forest products industry. Therefore, a survey on transport logistics allows to analyze the significance of entire supply chain management considerations to improve the overall performance and not only one part in isolation. Thus far, research focuses mainly on biomass, unimodal truck transport and terminal operations. Common shortcomings identified include rough explanations of simulation models and sparse details provided about the verification and validation processes. Research gaps exist concerning simulations of entire, resilient and multimodal wood supply chains as well as supply and demand risks. Further studies should expand upon the few initial attempts to combine various simulation methods with optimization.

ACS Style

Christoph Kogler; Peter Rauch. Discrete event simulation of multimodal and unimodal transportation in the wood supply chain: a literature review. Silva Fennica 2018, 52, 1 .

AMA Style

Christoph Kogler, Peter Rauch. Discrete event simulation of multimodal and unimodal transportation in the wood supply chain: a literature review. Silva Fennica. 2018; 52 (4):1.

Chicago/Turabian Style

Christoph Kogler; Peter Rauch. 2018. "Discrete event simulation of multimodal and unimodal transportation in the wood supply chain: a literature review." Silva Fennica 52, no. 4: 1.