Background NEPA environmental documents for projects reflect substantial time and money analyzing and predicting environmental impacts. Decisions on those projects are made based on that information. There is limited or no information…
TERI Administrator Note (January 2009): Funded as NCHRP Project 25-25, Task 40. Completed January 2008. http://www.trb.org/TRBNet/ProjectDisplay.asp?ProjectID=1658 Background: The cost and total quantity of noise barriers as an environmental abatement…
Issue: Tests have shown that aquatic organisms have different tolerance thresholds to snow and ice control materials that are applied to roads, highways, and bridges. A major factor in terms of selecting…
Issue Environmental agencies in the Pacific Northwest are concerned about dissolved copper in stormwater. Extremely low concentrations of dissolved copper (1 to 5 parts per billion) have been shown to…
TERI Administrator Note (Feb 2009) – Related Research – Linking Environmental Resource and Transportation Planning–The Current State of Practice (NCHRP 25-25: Task 32) FHWA’s Vital Few Environmental Goal, in part,…
Background/Need for this Research: "Green" or "Low Impact Development" design features and management practices, such as rain gardens, vegetated swales, and permeable paving systems, can be important elements of…
The scope of the research will include a comprehensive survey of the various types of solar and wind power systems available, their ability to provide sufficient or excess power for…
Since the passage of the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU) in 2005, the Federal Highway Administration has continued to encourage a more integrated…
Problem Statement: To maintain the highway infrastructure, right-of-way and their functions, many operations including snow and ice control, paving/patching, surface sealing, traffic marking and vegetation management may use chemical…
Problem Statement: Many facilities required in transportation operations and maintenance have evolved to the present by expansion, modification, and adaptation of design and materials common to several years ago. At…