نتایج جستجو برای: road quality
تعداد نتایج: 819114 فیلتر نتایج به سال:
introruction khawf in(iran)-herat and mazaresharif and shirkhan bandar in (afghanistan)-dushanbe in (tajikistan)_(kirgizstan)-kashghar in(china) project railway network is under construction that it is as a significant corridor for revitalizing silk road corridor in the region .at the present there are three different gauge in the region central asia with 1,520 mm gauge and turkey-islamic repu...
There are three paths to quality health care standards: the regulatory route, the "learning science" route, and the futuristic "management science" route. The regulatory path leads to punishment and blame. The learning science path splits, with one road leading back to harsh regulations and the other to the halls of academic medicine. And the management science path, while short, will be the ro...
Interest in the use of tolls to fund and regulate demand on motorways has revived in recent years. However, less attention has been paid to the road safety effects of this policy. Although toll motorway quality is equal to or above that of free motorways, charging users shifts some traffic to low-quality, adjacent alternatives. This study tests whether charging for the use of the better road ne...
The essential elements of any navigation system are a shortest‐path algorithm and a map dataset. When seen in the light of the basic requirement of such a system, to provide high quality navigation solutions fast, algorithms have to be efficient and road networks have to be up‐to‐date. The contribution of this work is two‐fold. First, the HBA* algorithm, an efficient shortest‐path algorithm, is...
An approach to complete road networks extracted from aerial images is presented. Since low-level road extraction results will generally be fragmented and contain false hypotheses, this task involves selecting the correct roads from the extraction results as well as connecting them to construct the road network. Since the presented approach models the road network as a graph, it can handle diffe...
One of the most important factors for the sustainable development of any country is the quality and efficiency of its transportation system. The principled and accurate maintenance of roads, in addition to having a major impact on budget savings, improves the quality and service levels of the transportation system. For this reason, road management and maintenance are the main pillars of the tra...
Jason D.Thompson R eduction of nonpoint source pollution of forest streams is a major issue in the forest products industry. Consequently, extensive research has been focused on documenting impacts of forest harvesting, road construction, and site preparation on water quality in forest streams. Researchers have found that roads create more pollution, in the form of sediment, than harvesting act...
Internal self-diagnosis and external evaluation of the obtained results are essential for any automatic system. In the long run these factors are of major importance for the relevance of the system for practical applications. Obviously, this statement is also true for image analysis in photogrammetry and remote sensing. However, so far only relatively little work has been carried out in this ar...
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