نتایج جستجو برای: main roads
تعداد نتایج: 603917 فیلتر نتایج به سال:
The project deals with counting the vehicle direction wise and also to alert the driver if there is any road block further ahead. The system is implemented using two IR sensors in each signal and main roads. When the vehicle is sensed using the first sensor the counter is incremented. When the second sensors sense the vehicle the counter is added to “vehicle count” list and the previous counter...
The verification of existing data is an important task in order to ensure a high level of data quality in Geographic Information Systems (GIS). Today this work is carried out mostly manually by an operator, who compares vector data from databases with remotely sensed imagery. In this paper we present a system for automated road data verification using digital image processing for the extraction...
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...
Identifying the factors that influence the spread of exotic species is essential for evaluating the present and future extent of plant invasions and for the development of eradication programs. We randomly established a network of 250 plots on an exotic Pinus radiata D. Don plantation on Tenerife Island in order to determine if roads and urban centers are favouring the spread of exotic plant sp...
The goal of this study is to detect the main road network in high resolution, panchromatic SPOT satellite images. The applications of automatic road detection have attracted considerable interest in this problem [1–4], but no present system is completely satisfactory from the point of view of detection time, image size and required human intervention. We describe an automatic procedure for road...
This research aims to highlight the link between weather conditions and road accident risk at an aggregate level and on a monthly basis, in order to improve road safety monitoring at a national level. It is based on some case studies carried out in Work Package 7 on "Data analysis and synthesis" of the EU-FP6 project "SafetyNet-Building the European Road Safety Observatory", which illustrate th...
The present study attempts to investigate the relationship between spatial configuration changes of Qom and the central core in the last half century. The main objective of this study is to review the Spatial form of Qom, and analyze the effect of changes in Urban configuration on the central core of the city and the main axes of urban activities during 1946 to 2011 and ultimately, Forecast the...
Introduction: The location of sanitary landfills is one of the most important environmental issues in cities. If the design of landfills is not appropriate, it will threaten human health. This study aimed to detect a suitable location for a landfill in Ilam, Iran. Materials & Methods: A questionnaire and consultation with experts were used to conduct the research. For this purpose, three ma...
Forest roads are necessary to access the forest area in order to performance forest management plans and to be availability of forest regions. Purpose of this research was technical characteristic analysis of existing road networks in compare to given standards of rural road, forest road and in multiple use forest management plan of Armardah, Banah. First, the existing road network was extract...
This paper presents the research results on the integration approach using a biologically inspired algorithm (LEGION) and a geometrically-inspired method (GAC) for target extraction from multiple-source remote-sensing imageries, specifically EO-1 Hyperion hyperspectral (30-meter resolution), and IKONOS multispectral (4-meter resolution) images. An automatic road-extraction algorithm based on LE...
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