نتایج جستجو برای: road density

تعداد نتایج: 478599  

Journal: :Journal of Geographical Systems 2011
Geoffrey Caruso Gilles Vuidel Jean Cavailhès Pierre Frankhauser Dominique Peeters Isabelle Thomas

We present a model that simulates the growth of a metropolitan area on a 2D lattice. The model is dynamic and based on microeconomics. Households show preferences for nearby open-spaces and neighbourhood density. They compete on the land market. They travel along a road network to access the CBD. A planner ensures the connectedness and maintenance of the road network. The spatial pattern of hou...

2007
Nicolas HAUTIERE Didier AUBERT Eric DUMONT

Fog is a challenging problem for road safety. To estimate the fog density and estimate the meteorological visibility distance, some attempts using an in-vehicle cameras are being developed. To complete the notion of meteorological visibility, we propose to estimate the distance to the most distant visible object belonging to the road surface. We call this distance the mobilized visibility dista...

2012
D V S Ramanjaneyulu Gerardine Immaculate Mary

In recent years the number of vehicles in roads have increased, which has causes high density in traffic and further problems like accident and road congestion. A solution regarding to this problem is vehicle-to-vehicle communication, where vehicles are able to communicate with their neighboring vehicles even in the absence of central base station to provide safe and more efficient road informa...

2009
John A. Bissonette Silvia A. Rosa

Our study focused on the putative effects of roads on small-mammal communities in a high desert region of southern Utah. Specifically, we tested whether or not roads create adjacent zones characterized by lower smallmammal densities, abundance, and diversity. We sampled abundance of small mammals at increasing distances from Interstate 15 during two summers. We recorded 11 genera and 13 species...

2016
Jianhua Ni Tianlu Qian Changbai Xi Yikang Rui Jiechen Wang

The spatial distribution of urban service facilities is largely constrained by the road network. In this study, network point pattern analysis and correlation analysis were used to analyze the relationship between road network and healthcare facility distribution. The weighted network kernel density estimation method proposed in this study identifies significant differences between the outside ...

Travels within the city are done in different ways, by vehicle or on foot. Thus, inevitably, a part of the travel is always done on foot. Since intersections as traffic nodes are determinant factor in transportation network capacity, any disruption in them leads to severe reduction in network capacity. Unfortunately, pedestrian behavior has received little attention in Iran. While this is a ver...

2016
Daan Van Brusselen Wouter Arrazola de Oñate Bino Maiheu Stijn Vranckx Wouter Lefebvre Stijn Janssen Tim S Nawrot Ben Nemery Dirk Avonts

BACKGROUND The Antwerp ring road has a traffic density of 300,000 vehicles per day and borders the city center. The 'Ringland project' aims to change the current 'open air ring road' into a 'filtered tunneled ring road', putting the entire urban ring road into a tunnel and thus filtering air pollution. We conducted a health impact assessment (HIA) to quantify the possible benefit of a 'filtered...

رأفت نیا, نصرت الله, شتایی, شعبان, غضنفری, هدایت, مصطفی, محسن,

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...

2017
Henry T. Smith Robert M. Barry Richard M. Engeman Stephanie A. Shwiff William J.B. Miller

2017
Seon-Ju Yi Changwoo Shon Kyung-Duk Min Hwan-Cheol Kim Jong-Han Leem Ho-Jang Kwon Soyoung Hong KyooSang Kim Sun-Young Kim

Although there has been suggestive evidence of the association between TRAP and ADs, findings remained inconsistent possibly due to limited population. We investigated the association between TRAP and ADs in a large population of children with rich spatial coverage and expanded age span in Seoul, Korea. TRAP exposures were estimated by categorized proximity to the nearest major road (≤150, 150-...

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