Railroad is one of the primary modes for transporting hazardous materials (hazmat). Given the dangerous nature of the hazmat, risk mitigation in the railroad transportation is the need of the hour. Hence, we explore the idea of equitable distribution of risk in the railroad network. We propose the subsidy policy to be considered by government to induce favourable routings of the hazmat shipments. The government's objective is to achieve risk equity in the network, whereas, the carrier's cost effective approach leads to increased risk in low-cost service-legs. To model this, we formulate the problem as a bi-level mixed integer program. We derive the single level mixed integer linear program (MILP) and test it on the rail infrastructure in midwest United States using state-of-the-art solver CPLEX 12.8.0. The instances with upto 25 shipments on the network are solved efficiently on a local machine. We use high performance computing resource available at Graham cluster of Compute Canada facility to solve the large instances with 50 shipments on the network. We show the effectiveness of the subsidy policy as a risk mitigation tool for the railroad hazmat transportation, and review the efficiency of the solution methodology to solve the MILP for the network. Moreover, the results demonstrate the economic feasibility for the government to allocate the budget for the subsidy. / Thesis / Master of Science (MSc)

This study examines the transportation of hazardous materials through Washington County, Tennessee. This study incorporates federal, state, and local data in assessing current transportation trends. Data gathering activities included local chemical inventories, hazardous materials transportation flow surveys, hazardous materials rail transportation trends, and hazardous materials incident data. All data were compiled and then analyzed to identify hazardous materials transportation trends in Washington County, Tennessee. This information is pertinent to emergency planners for the preparation of hazardous materials transportation incidents. The data gathered further revealed the need for this type of study to identify changing trends in the transportation of hazardous materials through Washington County, Tennessee. This type of study is essential in identifying risks posed from the transportation of hazardous materials through rural communities.

Submitted by Nadir Basilio (nadirsb@uninove.br) on 2016-06-21T19:03:09Z No. of bitstreams: 1 Henrique Naoki Shimabukuro.pdf: 1369424 bytes, checksum: 0a2567715985b97b39349f93f9f3c4cb (MD5) / Made available in DSpace on 2016-06-21T19:03:09Z (GMT). No. of bitstreams: 1 Henrique Naoki Shimabukuro.pdf: 1369424 bytes, checksum: 0a2567715985b97b39349f93f9f3c4cb (MD5) Previous issue date: 2016-02-15 / The use of chemical products and dangerous chemicals, known as hazardous materials or hazmats, increased with the development around the world. The industrial poles that consume these products have spread through developed and developing countries, including Brazil. This resulted in a growing quantity of chemicals and hazardous products transported on the streets, avenues and highways of the country. An immediate result was an expansion of road transportation of these substances, the increase of accidents with hazmat transportation and consequent rising in the risk to the highway and to the nearby population with these accidents. Considering the above, national and international literature was researched with the objective to find for tools that can make an analysis and evaluation of the risk to the highway and population living near these accidents with hazmat, besides the possibility of choice for other rotes as form of prevention to these accidents and a decrease in risk and cost. It was used four mathematical equations that were able to be analyzed through the data provided by two active highway concessionaires in São Paulo state, the concessionaire Auto Pista Arteris Régis Bittencourt (Régis Bittencourt highway) and the concessionaire Rota das Bandeiras (Corredor Dom Pedro, a set of highways from the city of Campinas, which the main highway is Dom Pedro I). These information, though they were not complete, in the sense that they were not totally provided as requested, were able to be applied in the mathematical equations. Despite some limitations, the resulting evaluation showed that these mathematical sentences can be utilized in highway and nearby population risk analysis and for the possibility of the choice for new routes, but it also requires an improvement of the database, especially the public and highway concessionaire databases. / O uso de produtos químicos e produtos químicos perigosos, chamados hazardous materials, aumentou com o desenvolvimento industrial. Os pólos industriais consumidores desses produtos aumentaram nos países desenvolvidos e em desenvolvimento, incluindo o Brasil. Isto resultou na crescente quantidade de produtos químicos e produtos químicos perigosos transportados nas ruas, avenidas e rodovias do país. Um resultado imediato foi a expansão do transporte rodoviário dessas substâncias, crescimento do número de acidentes no transporte rodoviário de produtos perigosos (PP) e consequente aumento do risco à rodovia e à população lindeira com esses acidentes. Diante disso, pesquisou-se a literatura nacional e internacional com o objetivo de buscar por ferramentas que possam proporcionar a análise, e avaliação dos riscos à rodovia e à população adjacente aos acidentes com PP nas rodovias, além da possibilidade de escolha de outras rotas como forma de prevenção a esses acidentes e diminuição de riscos e custos. Utilizaram-se quatro equações matemáticas que puderam ser analisadas por intermédio de dados fornecidos por duas concessionárias de rodovias atuantes no estado de São Paulo, a Concessionária Auto Pista Arteris Régis Bittencourt (Rodovia Régis Bittencourt) e a Concessionária Rota das Bandeiras (Corredor Dom Pedro, conjunto de rodovias na região da cidade de Campinas, cuja principal rodovia é a Rodovia Dom Pedro I). Essas informações, embora não tenham sido completas, no sentido de não terem sido fornecidos na totalidade do que foi solicitado, puderam ser aplicadas às equações matemáticas. Apesar de algumas limitações, as avaliações resultantes mostram que essas sentenças matemáticas podem ser utilizadas na análise de risco das rodovias, do risco à população lindeira e para a possibilidade de escolha de novas rotas, mas isso também requer melhora do banco de dados, sobretudo públicos e das concessionárias de rodovias.