There is an old fable about a stag that was very proud of his antlers. He used to stand at the edge of a pool and look down in the water to admire his image. As he indulged in admiration of their reflected glory, he was repeatedly distraught as his gaze also took in the reflection of his forelegs, which he considered spindly and ugly. One day, a mountain lion crept to the water’s edge and the s...

Rapid growth in a number of vehicles on roadways accelerates pavement deterioration trends. Pavement inefficiency in carrying the applied load from passing vehicles results in spending significant costs on continues Maintenance and Rehabilitation (M&R) treatments. Lane closure owing to the implementation of M&R operations incurs enormous costs on road users. The research aimed to calculate, and...

The purpose of this paper is to present the results of various studies which have been made concerning lateral placement of vehicles on rural roads. The term “lateral placement,” as it is used throughout this report, is construed to mean the position of the vehicle on the road in relation to either the right edge of the pavement or to the centerline of the road. Only two-lane roads will be cons...

BACKGROUND There is growing concern in communities surrounding airports regarding the contribution of various emission sources (such as aircraft and ground support equipment) to nearby ambient concentrations. We used extensive monitoring of nitrogen dioxide (NO2) in neighborhoods surrounding T.F. Green Airport in Warwick, RI, and land-use regression (LUR) modeling techniques to determine the im...

BACKGROUND Heart failure (HF) is a significant source of morbidity and mortality among African Americans. Ambient air pollution, including from traffic, is associated with HF, but the mechanisms remain unknown. The objectives of this study were to estimate the cross-sectional associations between residential distance to major roadways with markers of cardiac structure: left ventricular (LV) mas...

Most of the public roads that are being built and reconstructed in Uzbekistan today involve using a cement-treated or reinforced crushed stone-gravel-sand mixture for upper base layer.In process quality control construction work, several difficulties arise with assessing this material's strength.The article deals issue determining model predicting tensile strength during bending treated cement ...

The design of efficient routing algorithms is an important issue in dense ad hoc wireless networks. Previous work has shown that benefits can be achieved through the creation of a set of data “highways” that carry packets across the network, from source(s) to sink(s). Current approaches to the design of these highways however require a–priori knowledge of the global network topology, with conse...

OBJECTIVE This study sought to extend previous analyses of food insecurity in Montreal by examining the relationship between neighbourhood sociodemographic and urban form variables and sources of food both unhealthful (fast-food outlets, FFO) and healthful (stores selling fruits and vegetables, FVS). METHODS Densities of FFO and FVS were computed for 862 Census tract areas (CTA) (defined as c...

The Coweeta Hydrologic Laboratory, USFS Southern Research Station, worked with state and local agencies and various organizations to provide guidance and tools to reduce sedimentation and facilitate restoration of the 1900km2 Conasauga River watershed in northern Georgia and southern Tennessee. The Conasauga River has the most diverse aquatic ecosystem of any river in the region and is currentl...