A digital road map is a representation of a physical road network that can be displayed or analyzed by a digital computer. Figure 1 shows a road map and its graph representation. Road intersections are often modeled as vertices and the road segments are connecting adjacent intersections represented as edges in the graph. For example, the intersection of ‘SE 5th Ave’ and ‘SE University Ave’ is m...

For analyzing dynamic scenarios characterized by many ground moving vehicles, airborne GMTI radar is a well-suited sensor due to its wide-area, all-weather, day/night, and real time capabilities (GMTI: Ground Moving Target Indicator). The generation of GMTI tracks from these data is the backbone for producing a “recognized ground picture” as well as for analyzing traffic flows. In this paper we...

The classical approach for road network generalization consists of producing multiple maps, for a different scale or purpose, from a single detailed data source and quite often roads are represented by line objects. Our target is the generalization of a road network for the whole scale range from large scale, where roads are represented as area objects, to mid and small scales, where roads are ...

This study aims to assess landslide susceptibility in Pahne Kola watershed located in the south of Sari, based on bivariate logistic regression. For this purpose, the distribution map of the area’s landslides was firstly prepared in ArcGIS software. Eight effective factors on landslide event including elevation, slope, slope aspect, rainfall, land use, distance from the road, soil and geology w...

In the recent years a number of novel, automatic map-inference techniques have been proposed, which derive road-network from a cohort of GPS traces collected by a fleet of vehicles. In spite of considerable attention, these maps are imperfect in many ways: they create an abundance of spurious connections, have poor coverage, and are visually confusing. Hence, commercial and crowd-sourced mappin...

an urban map, the procedure composes the road-network by searching the roads from each intersection. Next, it In this paper, we propose an experimental method to modifies the road-network by interpreting the original urrecognize roads from an urban map on the basis of the ban map and the network simultaneously with heuristic road-network. The road-network is a conceptual graph knowledges about ...

quantifying urban landscape is fundamental for monitoring and assessing ecological and socioeconomic consequences of urbanization. expansion of roads is a significant factor driving urban landscape change. the aim of this research is quantifying impacts of roads on isfahan city landscape. to achieve this aim, land use map of isfahan was created in 6 classes: urban, green spaces, agricultural, b...

This paper proposes a map construction system for disturbed disaster areas based on ant colony systems. In our system, evacuees with mobile devices record roads they take while evacuating to a shelter as data collection agents. Then, at the shelter, recorded road information is gathered and restructured into a safe-road map. In this restructuring, information is weighted in accordance with the ...

The use of a global positioning system (GPS) device for navigation tasks has been well studied and found to be more effective in guiding a user to their destination than traditional road maps. In this paper, we examine how the recall of our environment is affected by using each of these methods. We evaluate the two devices by measuring semantic and geospatial recall of 18 participants after a n...