Problem The transportation sector is vital to the economy of the United States. It provides the critical links between industries and to their customers and it is the network for…
Problem Statement Vibration propagation through the ground is physically very similar to the propagation of noise through the air. Vibration and noise are similar in other respects as well; however,…
SUMMARY Major cities contain critical multi-modal infrastructure for both the movement of people and goods including some of the oldest systems still operated in the U.S. Climate change impacts such as…
Problem Statement On a national scale, increased emphasis is being placed on expansion and refurbishment of fixed-guideway transit systems, especially steel rail-steel wheel formats. This has exacerbated the need for…
Recent studies are showing Greenhouse Gas (GHG) is one of the greatest problems faced today. To reduce GHG is extremely complex and difficult since its production is so broad and intrinsic.…
Problem Statement Transit vehicular warning horns are relatively omni-directional and can be a source of annoyance in areas of the community adjacent to rail lines. For example, train horns sounded…
TERI Administrator Note – Similar research topic funded as SHRP C09 – Incorporating Greenhouse Gas Emissions Into the Collaborative Decision-Making Process (Completed Feb 2011) RESEARCH PROBLEM STATEMENT State departments of…
Problem Current surface transportation systems depend on century-old internal-combustion technology that produces millions of tons of GHG’s and other emissions annually. Highway vehicles produce emissions while idling in traffic and in…
Problem Statement A low carbon fuel standard (LCFS) sets a target to reduce the greenhouse gas (GHG) intensity of transportation fuels. Fuel providers must reduce the GHG intensity of their…
Problem Statement An ever-growing interest in the promise of high efficiency/low greenhouse gas-emittingvehicles has led to a variety of efforts to accelerate their commercial introduction. All the major original equipment…