نتایج جستجو برای: road network
تعداد نتایج: 733205 فیلتر نتایج به سال:
In the frame of project «Criteria traffic control quality and effectiveness in Russian Federation» Transportation Laboratory ISTU was invoved into elaboration network performance appraisal. Two alternative congestion measures were considered. The ratio peak period to free flow travel times proposed as a test criterion urban highway reliability.
This article addresses the problem of road extraction from new high resolution satellite images. The proposed algorithm is divided in two sequential modules : a topologically correct graph of the road network is first extracted, and roads are then extracted as surface elements. The graph of the network is extracted by a following algorithm which minimizes a cost function. The extraction algorit...
Prediction Simulation Study of Road Traffic Carbon Emission Based on Chaos Theory and Neural Network
Study the road traffic carbon emission and accurately predict the problems, the road traffic carbon emission has the complex systems of chaos and nonlinearity, the traditional method ignores the chaos of the road traffic carbon emission change, and it is so difficult to precisely control the rules of the road traffic carbon emission change that the precision of the of traffic carbon emission pr...
As South Africas road system comprises a total road network of rural and urban roads of approximately 534 000 kilometres, it is of utmost importance to have an effective road network level management system in place, which utilises reliable traffic loading data for long-term planning. Road authorities are therefore largely dependent on the availability and accuracy of traffic loading informati...
BACKGROUND There is increasing interest in examining the influence of the built environment on physical activity. High-resolution data in a geographic information system is increasingly being used to measure salient aspects of the built environment and studies often use circular or road network buffers to measure land use around an individual's home address. However, little research has examine...
Automated road information extraction enables the ready creation, maintenance, and update of the transportation network databases used for traffic management and automated vehicle navigation. This paper presents a semi-automatic method for road network extraction from high-resolution satellite images. First, we focus on detecting the seed points in candidate road regions using a Kohonen-type se...
Use and characteristics of the minor rural road network have changed dramatically in West-European intensive agricultural landscapes. These changes are caused by modern agriculture, by changing values of the road’s verges and by the multifunctionalization of the rural landscape. Changing the network, conventional farming practices often decrease landscape ecological stability. These problems ca...
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