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In the study of the configuration of the tanker of chemical logistics park, the minimum cost maximum flow model is adopted. Firstly, the transport capacity of the park loading and unloading area and the transportation demand of the dangerous goods are taken as the constraint condition of the model; then the transport arc capacity, the transport arc flow and the transport arc edge weight are determined in the transportation network diagram; finally, the software calculations. The calculation results show that the configuration issue of the tankers can be effectively solved by the minimum cost maximum flow model, which has theoretical and practical application value for tanker management of railway transportation of dangerous goods in the chemical logistics park. [ABSTRACT FROM AUTHOR]

In the present highly competitive dynamic environment, significant competitiveness factors include the level of services the customer is provided with. Their important components include services connected with delivery, from which it is particularly transport what has, among others, a significant impact on the date of delivery to the customer, its flexibility and reliability. However, transport often represents, compared to the other logistics activities, the largest independent cost item. Therefore, companies try to decrease this cost by choosing the optimum way of transport. However, transport also has a significant impact on the environment. The transportation sector accounts globally for 24 per cent of CO2 emissions, of which 40 per cent represents the freight traffic. And by 2050, freight transport performance is expected to have grown by almost three quarters. The most widely used ways of transport in Central Europe are road and railway transport. A lot of companies thus decide, when choosing the way of transport, between these two alternatives. Therefore, this paper specifies and evaluates, on the basis of the outcomes of a conducted analysis and assessment of the process of transport of dangerous items, the factors affecting the choice of transport within implementation of a business case in a selected chemical industry company. The analysed data were obtained through our own survey conducted using the method of in-depth interviews based on an interviewing scenario with selected employees of the company responsible for transport and sale. The benefit of the paper can be seen in identification of the factors that can, while respecting the customer requirements concerning the provided services, support extended utilization of railway transport, which shows absolutely the lowest energy demand, and, at the same time, CO2 emissions of all the modes of transport. [ABSTRACT FROM AUTHOR]

Quantitative risk analysis was recognized as a proper method for assessing the risk level of a hazardous activity, however, when this technique is applied to a transport case, there were several parameters and assumptions need to be considered before starting the Transportation Risk Analysis (TRA) calculation. This paper aims to describe how the modified TRA methodology is used for predicting the accident scenarios and their impact to humans and environment. The analytical technique was applied to a case study of liquefied petroleum gas (LPG) by road tankers. The transportation of LPG via five existing routes was studied in detail, and the corresponding societal risk were evaluated and compared. [ABSTRACT FROM AUTHOR]

This paper explores recent trends and issues pertaining to transnational environmental crime and how these are intrinsically linked to questions of global inequality. The paper describes developments relating to the disposal of toxic waste, incidents of trans-border pollution, transportation of hazardous materials, and illegal trade in flora and fauna. Notions of bio-security and bio-piracy are also examined within the context of neo-liberal 'free trade' economic frameworks. The paper organises the discussions around the twin themes of the problem of waste, and the problem of bio-diversity. Underpinning the analysis is the contention that exploitation of human beings, of nonhuman animals and of the biosphere is mutually reinforcing. A global political economy provides insight into the social and ecological inequalities associated with the making of, and responses to, environmental harms of a transnational nature. ..PAT.-Unpublished Manuscript [ABSTRACT FROM AUTHOR]