Potholes are features with no evident natural outlet, formed in hydric landscapes, such as the Prairie Pothole Region (PPR). Potholes are commonly under cropland management, which is not consistent with their hydrological patterns since periodic flooding during the growing season is frequent. Although there are studies investigating undisturbed and/or restored potholes, there is limited informa...

Pavement condition assessment is essential when developing road network maintenance programs. In practice, pavement sensing is to a large extent automated when regarding highway networks. Municipal roads, however, are predominantly surveyed manually due to the limited amount of expensive inspection vehicles. As part of a research project that proposes an omnipresent passenger vehicle network fo...

A total of 27 settled dust samples were collected from urban roads, parks, and roofs in Chengdu, China to investigate particle size distribution and perchlorate levels in different size fractions. Briefly, fine particle size fractions (<250 μm) were the dominant composition in the settled dust samples, with mean percentages of 80.2%, 69.5%, and 77.2% for the urban roads, roofs, and the parks, r...

We consider the problem of monitoring road and traffic conditions in a city. Prior work in this area has required the deployment of dedicated sensors on vehicles and/or on the roadside, or the tracking of mobile phones by service providers. Furthermore, prior work has largely focused on the developed world, with its relatively simple traffic flow patterns. In fact, traffic flow in cities of the...

lead as non-essential metal, is known the source of toxicity and impacts on the environment and humans. the goal of recent paper is to determine the pb concentration of road and road margin dust of ghamishlu wildlife refuge in isfahan province with an area about 120,000 hectares surrounded by four main roads. traffic load in the southern freeway have been reported as about 3600-19000 cars/day. ...

The state of roads may sometimes be difficult to perceive due intense climate conditions, absence road signs, or simply human inattention, which harmful both vehicles and drivers. automatic monitoring the states represents a promising solution warn drivers about status in order protect them from injuries accidents. In this paper, we present novel application for data collection regarding states...

Poorly maintained roads are a fact of life in most developing countries; it is certainly the case in Sri Lanka. The lack of funding to maintain the road surfaces is a main reason for the dilapidated condition of roads in these countries, but it is not the only reason. The absence of an effective monitoring system is one reason for this problem. A monitoring system can help to take remedial acti...

OBJECTIVE To describe the magnitude and characteristics of crashes and drivers involved in head-on crashes on two-way interurban roads in Spain between 2007 and 2012, and to identify the factors associated with the likelihood of head-on crashes on these roads compared with other types of crash. METHODS A cross-sectional study was conducted using the National Crash Register. The dependent vari...