Transportation is a key part of the global economy. It allows for the free movement of people and goods. Transportation emits 27% of American greenhouse gas emissions and 14% of global greenhouse gas emissions and is currently almost exclusively based on fossil fuels. As the rest of the world starts to demand the same standard of living as the United States the global impact of emissions due to...

Safety risk study on road transportation of hazardous chemicals is a reliable basis for the government to formulate transportation planning and preparing emergent schemes, but also is an important reference for safety risk managers to carry out dangerous chemicals safety risk managers. Based on the analysis of the transport safety risk of dangerous chemicals at home and abroad, this paper studi...

Intermodal freight transportation is concerned with shipping of commodities from their origin to destination using combinations of transport modes. Traditional logistics models have concentrated on minimizing transportation costs by appropriately determining the service network and the transportation routing. This paper considers an intermodal transportation problem with an explicit considerati...

A value chain is a series of events that takes a raw material and with each step adds value to it. Global interest in the application of natural gas (NG) in production and transportation has grown dramatically, representing a long-term, low-cost, domestic, and secure alternative to petroleum-based fuels. Many technological solutions are currently considered on the market or in development, whic...

Ethylene gas is a naturally occurring gas that has an influence on the shelf life of fruit during their transportation in cargo ships. An unintentional exposure of ethylene gas during transportation results in a loss of fruit. A gas chromatographic system is presented here for the detection of ethylene gas. The gas chromatographic system was assembled using a preconcentrator, a printed 3D print...

Transportation services are central to movement of goods and people in modern economies. Their provision embodies many tradeoffs between: economic benefits, health effects, social and environmental impacts. Policies aimed at achieving deep greenhouse gas emission reductions from the transportation sector will invariably impact the balance of these benefits and dis-benefits of transportation. Th...