Observations and modeling of ground water flow underneath and through road embankments will lead to a better understanding of permafrost stability. Thermal models of road embankments have been a useful…
The objective of this research is to develop approaches for evaluating long-term regional strategies for the use of alternative vehicle power sources. The vision is that the approaches developed may…
Examine performance indicators that measure timely human access more directly. How can transportation systems be easily evaluated in terms of measures of human quality of life – community livability, increasing commerce…
Equity is on the agenda of a growing number of MPOs and state DOTs, following Title VI requirements and subsequent federal guidelines. At the same time, there is little practical…
In concert with UC Davis, take samples from the calcareous skeletons/shells of invertebrates, cross section them through annual growth rings, burn samples from within the growth ring, analyze the vaporized…
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…
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…
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…
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…