Oregon Department of Transportation has been developing (in cooperation with other state and local agencies) a comprehensive GIS data management system. This system includes environmental, safety and asset resource information, but…
The southeastern United States is the center of biodiversity for freshwater fishes and mussels in North America. Many of these species are imperiled and one of the leading causes of imperilment…
Water is a precious finite resource in the United States and throughout the world. Water resource limitations are currently and expected to be one of the main environmental challenges facing…
This project proposes to screen, develop and apply Coral live cell imaging techniques to evaluate the effects of road runoff, increased water temperature, and storm water management practices on Coral…
The purpose of the project is to develop a better understanding of sustainable transportation efforts in Canada, the U.S. and Mexico, with particular reference to performance measures. The workshop will…
Zinc is an important targeted constituent for Departments of Transportation (DOTs). The average concentration in highway runoff exceeds water quality objectives. For individual storms, the measured concentrations of total zinc in highway discharge…
When applying MOVES (MOtor Vehicle Emission Simulator) in project-level PM (particulate matter) conformity analysis, link-based traffic characteristics are required at local on-road level so as to ensure realistically representation of…
Lead tire weights used to balance wheels may be a substantial source of lead in the highway environment. These weights are sometimes released from wheels and then abraded by traffic,releasing lead into…
The objective of this study is to determine the optimum timing and application rates of various deicing materials. A variety of standard tests can be conducted to determine the effectiveness of various chemicals, including:…
EPA has reported recently that the amount of nitrogen and phosphorus pollution entering our waters has escalated dramatically over the last 50 years, and that this trend will continue with US population…