Assessing the Effects of Highway-widening Improvements on Urban and Suburban Areas
Assessing the Effects of Highway-widening Improvements on Urban and Suburban Areas

Author: Thomas Nelson Harvey

Publisher: Transportation Research Board

Published: 1996

Total Pages: 56

ISBN-13: 9780309058650

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This synthesis will be of interest to highway environmental specialists (particularly those concerned with assessing social and economic impacts), design engineers, planners, utility managers, and others responsible for the planning, design, and implementation of highway-widening improvements. Information is presented on the reasons for highway-widening projects, the nature of the projects, and the methods and practices for application of analytical techniques used to measure the potential or actual impacts of the projects on people and the physical environment. Mitigation measures are also discussed. This report of the Transportation Research Board describes the most recent widening projects as reported by states or other transportation agencies, as well as the most frequently encountered issues in highway widening. Selected examples of widening projects are included, as is some recognition of the need for additional information and research in the areas of social and economic impact measurement.

Assessing and Managing the Ecological Impacts of Paved Roads
Assessing and Managing the Ecological Impacts of Paved Roads

Author: National Research Council

Publisher: National Academies Press

Published: 2006-01-22

Total Pages: 325

ISBN-13: 0309100887

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All phases of road developmentâ€"from construction and use by vehicles to maintenanceâ€"affect physical and chemical soil conditions, water flow, and air and water quality, as well as plants and animals. Roads and traffic can alter wildlife habitat, cause vehicle-related mortality, impede animal migration, and disperse nonnative pest species of plants and animals. Integrating environmental considerations into all phases of transportation is an important, evolving process. The increasing awareness of environmental issues has made road development more complex and controversial. Over the past two decades, the Federal Highway Administration and state transportation agencies have increasingly recognized the importance of the effects of transportation on the natural environment. This report provides guidance on ways to reconcile the different goals of road development and environmental conservation. It identifies the ecological effects of roads that can be evaluated in the planning, design, construction, and maintenance of roads and offers several recommendations to help better understand and manage ecological impacts of paved roads.

Reducing and Mitigating Impacts of Lane Occupancy During Construction and Maintenance
Reducing and Mitigating Impacts of Lane Occupancy During Construction and Maintenance

Author: Stuart D. Anderson

Publisher: Transportation Research Board

Published: 2000

Total Pages: 72

ISBN-13:

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TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 293: Reducing and Mitigating Impacts of Lane Occupancy During Construction and Maintenance describes the current state of the practice for reducing and mitigating the impacts of lane occupancy during construction and maintenance.