Using Six Sigma in the Management of City Logistics Processes: A Case Study on the Impact Assessment of Transport Infrastructure on Fuel Consumption in Szczecin

Lemke, Justyna; Strulak-Wójcikiewicz, Roma

doi:10.35808/ersj/2093

Cited by 2 publications

(1 citation statement)

References 31 publications

(35 reference statements)

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“…2, the process is divided in 7 high level operations, from Customer Contact to Delivery. A similar approach of both CTQ tree and SIPOC to improve the city logistics processes in Poland was found in literature [10]. scrap, as well as from (3) some of the independent variables.…”

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confidence: 76%

Redesign of Production and Retail Activities at Flower Shop, Inc. in Puerto Rico

Pérez¹,

Ortiz²,

Rosa³

et al. 2023

Proceedings of the 21th LACCEI International Multi-Conference for Engineering, Education and Technology (LACCEI 2023): “Leaders

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Flower Shop, Inc is a luxury flower shop located in Puerto Rico. In 2020, it experienced a 603% increase in demand, which resulted in moving from a kiosk to a full-size establishment. As business increased, several opportunities related to service time and material waste were identified. Some alternatives to improve the process included a Flower Price Calculator, Facility Re-layout, elimination of non-value-added activities, and others. With the alternatives selected, an 85% reduction in scrap and a 9.9% reduction in service time was achieved.

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mentioning

confidence: 76%

Redesign of Production and Retail Activities at Flower Shop, Inc. in Puerto Rico

Pérez¹,

Ortiz²,

Rosa³

et al. 2023

Proceedings of the 21th LACCEI International Multi-Conference for Engineering, Education and Technology (LACCEI 2023): “Leaders

View full text Add to dashboard Cite

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The application of lean six sigma to improve mining transportation overall vehicle effectiveness (MTOVE): a case study in mining company

Hia,

Singgih,

Gurning

2024

IJLSS

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Purpose The purpose of this paper is to present a case study the application of lean six sigma combined with mining transportation overall vehicle effectiveness (MTOVE) to improve mining transportation performance. MTOVE is a newly developed model to measure the overall effectiveness of mining transportation. Design/methodology/approach The method used is case study combines the MTOVE and LSS methodologies. Data were collected from the hauling operation during a three-month period. Various lean six-sigma tools, such as the Pareto chart, ANOVA, two sample t-tests, one sample t-test, cause-and-effect analysis and time study, have been used. Findings The case study resulted in improvement of vehicle overall effectiveness; a 35% increase in MTOVE value, a 17% improvement in productivity and a 9% increment in truck utilization. Statistical tests confirmed the significance of reducing the mean and variation in the hauling process cycle time, which led to productivity improvement. Research limitations/implications This study provides practitioners with additional quantitative evidence of the potential benefits of LSS methods in the coal mining industry. Practical implications This paper practically and unquestionably has contributed to the LSS body of knowledge focused on the mining sector, which is recently still far behind the manufacturing sector. The study has demonstrated that some challenges in the mining environment can be solved through the effective implementation of LSS tools. Hence, this paper could be used as a reference for both researchers and practitioners. Social implications The study contributes in the field of LSS spread in mining industries using a case study. This study shows practical evidence of improving overall vehicle effectiveness using LSS. Practitioners can refer to this study to understand the benefits of LSS in mining sector. Since the mining industry should also adopt the LSS principle into the mining business process due to its ability to improve business performance (Valente et al., 2020; Tupamahu et al., 2019; Zanon et al., 2021). Originality/value There has been little scientific study of the LSS implementation in the mining industry. This research provides detailed evidence of LSS implementation in the mining sector. The main contribution is the implementation framework, which shows the combination of newly developed indicators (MTOVE and LSS) to enhance hauling operation effectiveness. This paper demonstrates how LSS tools and methods can be applied in the mining transportation industry.

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Using Six Sigma in the Management of City Logistics Processes: A Case Study on the Impact Assessment of Transport Infrastructure on Fuel Consumption in Szczecin

Cited by 2 publications

References 31 publications

Redesign of Production and Retail Activities at Flower Shop, Inc. in Puerto Rico

Redesign of Production and Retail Activities at Flower Shop, Inc. in Puerto Rico

The application of lean six sigma to improve mining transportation overall vehicle effectiveness (MTOVE): a case study in mining company

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