Transportation environmental issues : air, noise, water, mitigation processes, and alternative fuels. A peer reviewed publication of the Transportation Research Board TRB.

The paper in this volume cover a variety of environmental and transportation energy topics. They are divided into five topical areas: 1) energy and alternative fuels; 2) environmental analysis; 3) air quality; 4) noise; and 5) enhancements. The papers on energy and alternative fuels address electric vehicles, alternative fuels, and fuel consumption models. The first set of environmental-related papers contains a paper on the on-site treatment of contaminated soils and another paper on wastes and sludge transportation and landfill selection. The next set of papers reflects TRB's new activities that address the interrelationships between transportation and the protection of natural resources. On the issue of transportation-related air quality, several topics are considered, including improving transportation air quality models through better road link speed estimates, the trip-based approach to estimating emissions, and the impact of programs such as intelligent vehicle-highway systems and automobile retirement programs on potential emissions and air quality. Other papers discuss the relationship between transportation-related air quality and economic development, travel forecasting guidelines under the clean air acts, modeling for a regional transportation emissions inventory, the effects of power enrichment on carbon monoxide emissions, and a framework for evaluating transportation control measures. Three papers address transportation-related noise. Two papers on aircraft noise consider ground-noise abatement of aircraft at a metropolitan airport and the effects of helicopter noise on rural communities. A third paper proposes procedures for prioritizing noise-barrier locations. The last paper in this Record describes the enhancements program for the San Francisco Bay Area.