Roads are important components of landscapes; they fragment habitat, facilitate invasive species spread, alter hydrology, and influence patterns of land use. Previous research on the ecological impacts of roads may have underestimated their effect because currently available sources of road data do not include the full road network. We compared differences in road density and landscape pattern ...

The New South Wales (NSW) Government has identified road safety as one of its key State Plan priorities. The Roads and Traffic Authority of New South Wales (RTA) has been nominated as the lead agency for this priority. This presented the RTA with an important opportunity to reduce the State’s road toll even further. A new focus was introduced for the RTA to take up the challenges and priorities...

One of the alleged justifications for government provision of roads is that the power of eminent domain is necessary in order to overcome holdout problems and obtain right-of-way properties (Goldstein 1987).1 After all, this argument continues, only the state has such power, so the private sector would be unable to supply the efficient amount of roads.2 In this article, I examine this market-fa...

Roads have been a part of human landscapes for more than 40 centuries. During the 20th century, technological advances have increased our ability to construct new roads at unprecedented rates and into steeper terrain. In the last half of that century, an extensive network of roads has been constructed in forests and other wildlands to facilitate use and management of natural resources. They are...

We present a one dimensional model for the development of cor-rugations in roads subjected to compressive forces from a flux of cars. The cars are modeled as damped harmonic oscillators translating with constant horizontal velocity across the surface, and the road surface is subject to diffusive relaxation. We derive dimensionless coupled equations of motion for the positions of the cars and th...

In this paper, we propose an automatic method for generating roads based on a weighted anisotropic shortest path algorithm. Given an input scene, we automatically create a path connecting an initial and a final point. The trajectory of the road minimizes a cost function that takes into account the different parameters of the scene including the slope of the terrain, natural obstacles such as ri...

     Roads have an important role in plants dispersal on different scales. Various plant species settle on roadsides, but some of them can enter the natural environments and threaten their biodiversity. Worldwide knowledge of roadside flora is necessary for local and global management of natural areas. Accordingly, the roadside flora of Northern Khorasan rangelands was studied along the 600 km ...