forests as a renewable source has effective and useful role in economic and social activities of society. network of forest roads as infrastructure division’s forest planning units (compartments) of forest management plans, management, logging, exit of wood and plays a major role forest protection. aim of this study, designed forest road network according to multi-purpose forestry using the net...

Road extraction plays an important role in many applications such as car navigation. However, the manual extraction of roads is a laborious and tedious task. Road extraction from satellite images has drawn considerable attention in last years due to the recent availability of commercial high-resolution optical satellite imagery. Road extraction strategies are usually classified into two categor...

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. ...

Budapest Közút is developing ROad Data Information System based on mobile laser scanning since 2013. All public roads (cca. 5000 km) are surveyed by MLS (Riegl VMX450) in survey grade accuracy and all visible road assets has been digitized and loaded to a complex 3D GIS environment. Since the first full coverage had been done in 2014 the whole city has also been updated - being one of the few l...

Background: Iran has a uniquely catastrophic status for road traffic injury and fatality. Fars province has had the highest number of casualties among the other provinces in recent 5 years. For instance, there are 966 road accident fatalities in 2018. Shiraz-Kazerun road is the deadliest one in Fars province. So, to help the policymakers toward better planning, this study was established to ide...

Every 6 seconds someone is killed or seriously injured on the world's roads. With 1.3 million road deaths each year this is a global epidemic comparable to malaria or Tuberculosis. Nine in ten road deaths and injuries are in developing countries. By comparison to other global killers, road injury is neglected. Road crashes are the leading global cause of death for young people under 25 years, a...

In this paper we study an example of a complex network, namely the road infrastructure of the Netherlands. In order to investigate the factors influencing the robustness of the complex network under consideration, we calculate a set of generic topological characteristics, related to the connectivity, degree, clustering and the shortest path length. Along with these widely considered topological...

A spatial preference query ranks objects based on the qualities of features in their spatial neighborhood. For example, consider a road network database with available paths for two points. A customer may want to rank the paths with respect to their distance defined after aggregating the qualities of other features (road condition, travelling time, traffic monitoring and road length) within a d...

This paper deals with the economic optimization of reinforced concrete road vaults and with the optimization of rectangular hollow section bridge piers typically used in road construction. It shows the efficiency of a heuristic optimization by the threshold accepting algorithm. The evaluation of solutions follows the Spanish Code for structural concrete. Design loads are in accordance to the na...

The analysis of environmental impact the public highway maintenance was carried out. dynamics road traffic, length highways and safety revealed for 1990-2019 period. existing regulatory framework monitoring on environment in year-round has been system placement points depending category road, land, presence roadside forest belts with definition zones by various groups pollutants substantiated.