While two-dimensional maps exist for most urban areas, the descriptions may be incomplete or out of date, or of insufficient resolution for the given application and features such a roads are not described as 3-D objects. Most of the past work on road detection has concentrated on either low resolution, primarily rural roads (usually producing “spaghetti” roads with no notion of intersections),...

How does isolation affect the economic activity of cities? Transport costs are widely considered an important barrier to local economic activity but their impact in developing countries is not well-studied. This paper investigates the role of intercity transport costs in determining the income of sub-Saharan African cities. In particular, focusing on fifteen countries whose largest city is a po...

The new advances of having eight bands satellite mission similar to WorldView-2, WV-2, give the chance to address and solve some of the traditional problems related to the low spatial and/or spectral resolution; such as the lack of details for certain features or the inability of the conventional classifiers to detect some land-cover types because of missing efficient spectrum information and a...

Over the past decade, worldwide increases in terrorist activities by both state and non-state actors has created a need for a real-time monitoring system that can identify and classify potential threats from a safe stand-off distance. Specifically, since the beginning of both the Iraq and Afghan wars, a major concern for coalition forces has been maintaining security for their bases, convoys, t...

The Decision Tree Processing Expert System (DTPES) has been used to map out road distributions over an urban/rural area. A multi-source database was employed using Geographic Information System (GIS) data and remote sensing imagery. The independent data set comprised seven fields, that attempt to represent contextual, textural, geometrical characteristics of the knowledge-based data. A tabular ...

forest roads are basic infrastructures for management of forested areas. sustainable management of roads depends on regular and timely forest road maintenance. road inventory is as an important tool to recognize the needs of roads and do corresponding correction operations. gis can be a powerful tool for acquirement, analysis and management of data in road management. the purpose of this study ...

When driving on lower-category Dutch rural roads without any delineation, drivers are likely to drift off the road with their right-side wheels, thus incurring damage to the pavement edge or even leading to accidents. In two experiments, two types of road-edge delineation, with continuous or dashed edge lines, were compared with two control roads without lines or with only a dashed line on the ...

BACKGROUND AND PURPOSE Air pollution is associated with stroke, and road traffic is a major source of outdoor air pollution. Using proximity to roads as a proxy for exposure to road traffic pollution, we examined the hypothesis that living near main roads increases the risk of stroke mortality. METHODS We used a small-area ecological study design based on 113 465 census enumeration districts ...