Nguyen Thi, Binh (2017)
A Multi-Stage Impact Assessment Method for Freight Transport Management Measures – The Example of Vietnamese Rice Production and Logistics.
Technische Universität Darmstadt
Ph.D. Thesis, Primary publication
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Item Type: | Ph.D. Thesis | ||||
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Type of entry: | Primary publication | ||||
Title: | A Multi-Stage Impact Assessment Method for Freight Transport Management Measures – The Example of Vietnamese Rice Production and Logistics | ||||
Language: | English | ||||
Referees: | Boltze, Prof. Dr. Manfred ; Friedrich, Prof. Dr. Hanno | ||||
Date: | 20 July 2017 | ||||
Place of Publication: | Darmstadt | ||||
Date of oral examination: | 18 October 2016 | ||||
Abstract: | The concept of freight transport management (FTM) is perceived as an aspect of traffic management that has a significant influence on freight transport. A review of relevant literature gives descriptions of numerous FTM measures. Multi-dimensional approaches to optimize freight transport, production and logistics processes should be considered when assessing the impacts of FTM measures. The assessment method utilised during the planning process stages for estimating these impacts should be based on the type of measures being reviewed, and on the sector under consideration. In addition, for efficiency reasons, it is not appropriate to carry out impact assessments of all measures or to select only one single method for all circumstances. Therefore, a multi-stage assessment method is necessary for first assessment and classification, and then a detailed quantitative analysis of the selected measures only needs to occur. With this approach, the risk associated with limitations of individual measures is mitigated in initial preselection stages and efficiency is improved, as a thorough and detailed impact assessment of the core effects of measures shortlisted in the classification stage are examined. The objective of this study is to develop a method to investigate and assess the impacts of FTM measures on production, logistics and traffic. In this study, firstly, a framework for FTM is discussed to provide a theoretical foundation for this study as a whole. It includes freight transport system analysis, an overview of the FTM concept, and a summary of FTM measures identified in various case studies. Secondly, a multi-stage impact assessment method for FTM measures is developed, which enables quick classification of adopted measures, and detailed quantitative impact analysis. Explanation of the development pro-cess starts with a review of the overall transport decision-making process in general and the impact assessment methods for FTM measures in particular. The discussion of pros and cons of existing assessment methods is brought into focus. Subsequently, a multi-stage impact assessment method for FTM measures is developed by which the core effects of the measures can be effectively estimated and captured. The proposed method is composed of two main stages. The first stage serves as a preselection of measures with a focus on defining and classifying the measures based on qualitative or partly-quantitative methods. The second stage investigates the core effects of selected measures using quantitative methods to carry out detailed analysis. The rice industry in Vietnam was selected to be a case study for this application since data is available to test various kinds of impacts caused by FTM measures. Additionally, there is a high level of freight traffic with a bundle of FTM measures applied in the rice industry. Traffic volume due to rice transport is increasing quickly and contributes up to 21% of the total freight traffic volume on some key transport corridors, for example from the Mekong Delta to Ho Chi Minh City (HCMC). Vietnam is also currently the second largest rice exporter in the world. The rice industry involves various stakeholders such as farmers, collectors, millers, polishers, food companies, wholesalers, retailers and so forth, and knowledge of the decision-making behaviour of those stakeholders is needed to predict their reactions to FTM measures. The results of the first assessment stage in the rice industry show that high ratings have been given to two FTM measures: the establishment of a regional rice logistics centre and the improvement of national highway (NH) 1A from the Mekong Delta to HCMC. The second assessment stage is a detailed impact assessment of preselected measures based on a detailed and comprehensive sector analysis. In this stage, quantitative assessment is carried out to determine impacts related to changes in the supply chain, and impacts on transport mode choices in the rice industry. A total logistics cost (TLC) model serves as the core tool for analysis of the rice industry, differentiating a disaggregated population of rice commodity flows and distribution centre locations. Final assessment results show that an establishment of a regional rice logistics centre can result in a modal shift away from trucks and this is contributing to improved traffic safety and the quality of the environment in affected areas. The improvement of NH 1A is expected to increase average speeds and reduce freight transport time from the Mekong Delta to HCMC. Combining the measures of rice logistics centre establishment and NH 1A improvement can maximise economic efficiency through significant reduction in TLC for the rice industry. Safety and environmental benefits can al-so be achieved at the rice industry and transport network level. In summary, with a multi-stage impact assessment approach it has been demonstrated that it is possible to investigate and assess the impacts of FTM measures on production and logis-tics. Also, the proposed method in this study emphasises the involvement of multiple stakeholders in the assessment process, and allows for capturing and estimating the core effects of these measures. As noted above, the TLC model is utilised to assess the impacts of FTM measures and the application of the TLC model, as in this study, can be seen as one of the key methods in assessing FTM measure impacts that is based on comprehensive sector analysis. The study is expected to be of value for governmental and local transport authorities in providing suitable methods for assessing FTM policies. Although the study has achieved its goal, there are some inevitable limitations. Firstly, detailed quantitative impact assessment can only take place when extensive data is available, which may hinder the application of the proposed method in practice. Secondly, the application of the method developed in this study focuses on the Vietnamese rice industry and the specific constraints and demands of freight transport management in this context. Therefore, it should be applied to other sectors to determine further the potential generalization of findings in other contexts. Lastly, the study addresses a new and complex field of research in its focus on impact assessment methods for FTM measures. However, this field continues to receive less attention than passenger transport due to the complex characteristics of freight transport systems. This study is expected to contribute to enriching the theoretical and empirical understanding of FTM measures and their effective management. |
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Identification Number: | V36 | ||||
URN: | urn:nbn:de:tuda-tuprints-62524 | ||||
Classification DDC: | 300 Social sciences > 350 Public administration 300 Social sciences > 380 Commerce, communications, transportation 600 Technology, medicine, applied sciences > 650 Management |
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Divisions: | 13 Department of Civil and Environmental Engineering Sciences > Institutes of Transportation > Institute for Transport Planning and Traffic Engineering | ||||
Date Deposited: | 20 Jul 2017 12:26 | ||||
Last Modified: | 04 Jan 2024 10:34 | ||||
URI: | https://tuprints.ulb.tu-darmstadt.de/id/eprint/6252 | ||||
PPN: | 406231451 | ||||
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