BACKGROUND Both road safety campaigns and epidemiological research into social differences in road traffic injury risk often assume that road traffic injuries occur close to home. While previous work has examined distance from home to site of collision for child pedestrians in local areas, less is known about the geographic distribution of road traffic injuries from other modes. This study expl...

vi Εκτεταμένη Περίληψη viii

Transformation of land use-land cover change occurs due to the numbers and activities of people. Urban growth modeling has attracted authentic attention because it helps to comprehend the mechanisms of land use change and thus helps relevant policies made. This study applied logistic regression to model urban growth in the Ahvaz Metropolitan Area of Khuzestan province in IDRISI Selva software a...

Cluster analysis is a fundamental challenge in trajectory mining. However, existing trajectory clustering algorithms are not well suited to large numbers of trajectories in a city road network because of inadequate distance measures between two trajectories. In this paper we propose a novel Dijkstra based Dynamic Time Warping (DTW) distance measure, trajDTW between two trajectories, which is su...

abstract recognition of effective factors on landslide occurrence and so high and low hazard region is one of the most important and necessary works for mitigation of landslide damages. in this study, from all of the effective factors on landslide occurrence, land use changes and road construction, into a parts of tadjan watershed with area about 708.08 square kilometers in south of sari, was s...

Computing shortest distances is one of the fundamental problems on graphs, and remains a challenging task today. Distance landmarks have been recently studied for shortest distance queries with an auxiliary data structure, referred to as landmark covers. This paper studies how to apply distance landmarks for fast exact shortest distance query answering on large road graphs. However, the direct ...

road network (rn) can affect patterns and distribution of land uses and covers. road network expansion has both direct and indirect impacts on land uses and covers changes. agricultural land conversions (alcs) are especially known as one of the main important types of land use changes. the purpose of this paper, in addition to estimation of the direct impact of rn expansion on alcs, is to evalu...

We calculated the usable distance of the main roads in the coastal area of Iwate prefecture following the 2011 Tohoku Earthquake. Calculations were based on a vehicle tracking map built from G-BOOK telematics data using QGIS, an open source geographic information system. The main findings are as follows. (1) The change in the accumulative usable road distance ratio during the research period di...