The primary objective of this study was to provide guidelines and tools for quantifying the
environmental impacts in terms of fuel consumption and emissions of various highway
geometric design conditions related to crest vertical curves. Second-by-second speed
profiles were generated with speed prediction and polynomial models, and fuel
consumption and emission rates based on vehicle-specific power and speed were extracted
with the recently developed motor vehicle emission simulator (MOVES) modeling software …

This paper provides guidelines and tools for quantitative evaluations by means of fuel
consumption and emissions for various vertical grade design conditions. Detailed vehicle
operation conditions were represented by second-by-second speed profiles generated with
the truck dynamic model and nonuniform acceleration and deceleration models. The rates of
fuel consumption and emissions based on vehicle-specific power and speeds were
extracted by using the recently developed Motor Vehicle Emission Simulator. The generated …