I. Problem Statement: There is increasing evidence that nutrients are major constituents in highway runoff. This varies with the area of ROW as well as the vegetation types and adjacent…
TERI Administrator Note (January 2009): Funded as NCHRP Project 25-25 (52). Background: Under the Clean Water Act, the Corps is delegated the authority to permit the discharge of dredged or…
Right-of-way vegetation management is a major responsibility of the State DOTs. Traditionally, roadside vegetation was managed for a variety of purposes important to the public, such as safety, roadway integrity,…
Background: The U. S. Congress enacted the Migratory Bird Treaty Act (MBTA) in 1918 to implement several international treaties. The treaties were entered into because of concerns about the decline…
TERI Administrator Note (January 2009): Idea selected for implementation with NHCRP 25-25 (Task 56) funding in 2009. The cost of complying with the National Pollutant Discharge Elimination System (NPDES) continues…
Roadway access management has been shown to be highly effective in terms of improving both traffic safety and traffic flow. Crash rate reductions of between 40 and 50 percent are…
TERI Administrator Note (Feb 2009) Related Research: Diesel Retrofit Technology – An Analysis of the Cost-Effectiveness of Reducing Particulate Matter and Nitrogen Oxides Emissions from Heavy-Duty Nonroad Diesel Engines Through…
TERI Database Administrator Notes: Not recommended at present time by 2009 Air Quality Subcommittee. Background: Millions of dollars are spent annually on air quality (mobile source-related) public education programs Objectives…
TERI Administrator Note (Feb 2009): Related Research: Impacts of Magnesium Chloride-Based Deicers on Roadside Vegetation; Transportation Research E-Circular Number E-C126 June 2008 – Surface Transportation Weather and Snow Removal and…
I. Research Problem Statement For years non-selective, residual herbicides were used to keep the roadsides at the edge of the pavement free of vegetation. These areas, sometime referred to as…