The Observations leading to this proposal are 1) that a fibrous material (such as a long-bladed grassy bush or the fur of an animal) can noticeably reduce sound levels from…
The objective for this study would be to compile information on the state of the practice among state DOTs for using microscopic traffic simulation in support of project-level air quality…
Since its inception 50+ years ago, NEPA has been subject to criticism – takes too long, costs too much, and so on. As a result, many remedies have been put…
Identify and assess up to five projects subject to NEPA where OFD was a paramount focus. Assess how OFD was handled in each, ID commonalities, differences, and outcomes? Conduct interviews…
For over 20 years Congress and presidential administrations from both parties have sought to accelerate environmental approval timeframes for transportation infrastructure projects. Planning Environmental Linkages (PELs) were first authorized in…
NCHRP Synthesis 20-05/Topic 53-19 is a project projected to finish in 2024. The focus of the project was on State DOT product evaluation programs (PEPs) to evaluate product potential and…
• Tied to communication across all the disciplines during project development and construction. • Section 106 is not static piece within the project delivery process, it needs to be done…
As the U.S. Environmental Protection Agency (EPA)’s preferred air dispersion model for refined transportation project analyses, AERMOD is used to model roadway “link” source using AREA, VOLUME, LINE, RLINE, or…
Regulatory requirements for conducting quantitative project-level analyses for particulate matter (PM) were introduced by EPA with the release of the MOVES model in 2010. This proposed study would prepare a…
A nationwide survey of how transportation agencies from all levels are successfully defining Areas of Potential Effect (APEs) for projects across the country. APEs are defined as part of the…