Traffic-Related Air Pollution synthesizes and maps TRAP and its impact on human health at the individual and population level. The book analyzes mitigating standards and regulations with a focus on cities. It provides the methods and tools for assessing and quantifying the associated road traffic emissions, air pollution, exposure and population-based health impacts, while also illuminating the mechanisms underlying health impacts through clinical and toxicological research. Real-world implications are set alongside policy options, emerging technologies and best practices. Finally, the book recommends ways to influence discourse and policy to better account for the health impacts of TRAP and its societal costs. Overviews existing and emerging tools to assess TRAP’s public health impacts Examines TRAP’s health effects at the population level Explores the latest technologies and policies--alongside their potential effectiveness and adverse consequences--for mitigating TRAP Guides on how methods and tools can leverage teaching, practice and policymaking to ameliorate TRAP and its effects

Urban Transportation and Air Pollution synthesizes state-of-the-art methods on estimating near-road concentrations of roadway emissions. The book provides the information needed to make estimates using methods based on a minimal set of model inputs that can be applied by a wide range of users in many situations. Discussions include methods to estimate traffic emission under numerous urban driving conditions, the uncertainty of emission models, and the effects of road configurations, such as near-road solid barriers. Final sections present dispersion models that link traffic emissions with near road concentrations in urban environments. Addressing transportation-related environmental issues is extremely important as urban areas are constantly searching for ways to mitigate impacts from transportation sources. This book helps to explain dispersion models, a critical tool for estimating the impact of roadway emissions in cities. Compiles and synthesizes the state-of-the-science methods for estimating roadway emissions Demonstrates, with clear examples, how modeling methods reduce uncertainties in real-world problems Emphasizes how local-scale, semi-empirical, steady-state modeling can be applied using only a small set of inputs Offers an overview of the meteorology that governs air pollution dispersion in cities

Authors′ ad copy***Use whenever possible*** The Clean Air Act of 1991 and the Intermodal Surface Transportation Efficiency Act of 1994 require that metropolitan transportation planning agencies give high priority to the improvement of air quality. Under these laws, transportation planners must design regional highway and transit systems that contribute substantially to the attainment of federal air quality standards. This new requirement reveals important limitations to the standard methods by which transportation planners do their work. The mathematical models and statistical techniques used by transportation planners appear to be inadequate to enable them to analyze the air quality implications of alternative transportation plans. This was the situation when a group of environmental organizations brought suit in federal district court alleging that the Metropolitan Transportation Commission in the San Francisco Bay area had violated requirements of these laws in its transportation planning and highway funding activities. This volume provides an account of the legal dispute that pitted environmentalists against regional transportation planners, and which demonstrated that regional transportation planning methods are in need of substantial improvement. This monograph should be of interest to urban planners, environmentalists, public policy analysts, and those who apply mathematical modeling and statistical analysis to questions of public policy. The authors--an attorney and a transportation planner who took part in the lawsuit--analyze the specific arguments made by both sides in this important legal action, and draw from the specific case broader conclusions about the role of technical analysis in public policy making. *************************************************************** Urban planning does not and cannot exist in isolation--there are a large number of external factors that impact on a planner′s work including politics and the planning commission; environmental impact studies; and national, state, and local legislation. Focusing on the interrelations between federal legislation, the judicial process, and transportation planning, Transportation Planning on Trial examines the interaction between regional transportation planning and environmental, particularly air, quality. This unique volume is designed to help urban planners understand the legal restrictions and requirements that directly impact how they operate. It considers two recent federal legislation pieces--the Clean Air Act of 1990 and the Intermodal Surface Transportation Efficiency Act of 1991--that mark the most important landmarks in a decade-long shift in emphasis in regional transportation planning. This groundbreaking volume will be vitally important to transportation planners, students of urban and transportation planning, transportation policymakers, environmentalists and environmental lawyers.

This report considers specific research needs relating to surface transportation and air quality. The greatest immediate need of transportation policy makers and administrators for environmental information and analysis is probably in support of programs for complying with federal clean air regulations. Water quality, noise, and land use are environmental concerns linked to transportation, and these issues will be important considerations in transportation policy making in the future.