<p>Air quality has become one of the important factors to be considered in making transportation improvement decisions. Thus, tools are expected to help such decision-makings. On the other hand, MOBILE5 model, which has been widely used in evaluating air quality improvement, become helpless when the transportation improvements are sensitive to factors such as acceleration/deceleration, grade, etc. which are not modeled in MOBILE5 model. For example, improvements can be made to reduce the grade of a ramp, thus reduce high acceleration and deceleration.

The MOBILE5 model, widely used in evaluating the
impacts of transportation investments on air quality, is
insensitive to the effects of acceleration or deceleration
on emissions and thus cannot model the effects of
improvements such as a reduction in grade. The
problem with MOBILE is that it uses average speed as
the only variable to represent driving dynamics which
are strongly related to vehicle emissions. These
dynamics are often not properly characterized by
average speed. The objective of this study was to

<p>This report explains the impacts of transportation infrastructure on herpetile populations, the landscape, local habitat, and architectural attributes of effective herpetile crossing structures and employs habitat analyses to identify &#39;connectivity zones&#39; where crossing structures would be most appropriately deployed along New York State roadways. To conserve New Yorks herpetiles we must protect a diversity of habitats that they require as well as the connections between them.

In the United States millions of piles are used to support residential, commercial,
and transportation structures. There are, however, some problems associated with
the use of traditional piling. It is now more commonly required to install piles on
corrosive and contaminated soils, due to industrialization. The durability of
concrete, corrosion of steel, and deterioration of wood is a serious hindrance to
construction in these environments, particularly where high concentrations of
sulfides or chlorides are present.

Fiber reinforced polymer (FRP) composites represent an alternative construction
material without many of the performance disadvantages of traditional materials. The use of FRP
as a pile material can eliminate deterioration problems of conventional piling materials in water
front environments and aggressive soils. This paper presents the results of one-year
experimental study conducted to assess the durability of piling made of recycled plastics in
aggressive soils for long term usage in civil infrastructure applications. An accelerated testing

This work aims to develop statistical models for ultrafine/fine particle number emission rates from a
diesel bus, to evaluate the explanatory power of engine operating variables. Emissions were recorded
by using on-board instrumentation in two types of real-world driving conditions: a freeway
commuting route and a within-city-limits bus route, with stop and go due to intersections and bus
stops. To reduce the risk of drawing spurious conclusions, three replications of the experiment were

Durability of concrete bridge decks to mechanical and environmental effects is examined for the
purpose of evaluation of effects of blacktop resurfacing of bridge decks. Aggressive environmental
actions on reinforced concrete are described, classified and equivalent environmental loads
presented. To explain effects of aggressive environmental loads, concrete transport properties
dependent on: concrete structure, external effects, mechanisms in concrete, and chemical reactions

Concrete delamination (spalling) in bridge decks is a serious problem. Damage in reinforced concrete structures is caused by many factors, such as alkali-aggregate reaction, faulty design and construction, reinforcement corrosion, corrosive action of chlorides, geotechnical problems, or in general by mechanical, chemical, physical, biological and environmental loads. The project examined the durability of concrete bridge decks to mechanical and environmental effects, for the purpose of evaluating the effects of blacktop resurfacing of bridge decks.

Mowing the highway right-of-way is important for the safety of roadway users and maintaining
the highway infrastructure. However, little quantitative data are available on the energy use and air quality
impacts of highway mowing activities. In this report, fuel usage and exhaust emission rates are reported from
a study that monitored tractors operating in real-world conditions by the New York State Department of
Transportation. The emissions and fuel consumption from the mowing practices of twelve tractors were

<p>Fiber-reinforced polymer composites represent an alternative construction material without many of the performance disadvantages of traditional materials. The use of fiber-reinforced polymer as a pile material can eliminate deterioration problems of conventional piling materials in waterfront environments and aggressive soils. This paper presents the preliminary results of an experimental study conducted to assess the durability of piling made of recycled plastics in aggressive soils for long-term usage in civil infrastructure applications.