نتایج جستجو برای: road quality

تعداد نتایج: 819114  

Evaluating and comparing the performance of Frequency ratio coefficient models and network analysis in Rock fall zoning (A case study of Zanjan-Taham-Tarom Road) Extended Abstract One of the natural hazards of the collapse of rocks from the foothills of the mountains, causing great financial losses and loss of life. Especially when it comes to the path of communication. The rock fall is a ...

2006
Feng Xie David Levinson

In order to maintain and improve road infrastructure in their respective jurisdictions, the state (the Minnesota DOT), region (the Metropolitan Council), and seven counties in the Twin Cities Metropolitan area develop their respective decision making (investment) processes in which federal or local funding are periodically allocated to road projects, prioritized according to their funding needs...

2015
G. Balasubramanian

Traffic congestion increases vehicle emissions and degrades ambient air quality, and recent studies have shown excess morbidity and mortality for drivers, commuters and individuals living near major roadways. Presently, our understanding of the air pollution impacts of congestion on the roads is very limited. This study demonstrates an approach to characterize the risks of traffic for onand nea...

2013
Chun Liu Zhiwei Jian Xiaolin Meng

This chapter presents an automatic methodology for the extraction of spatial road features and networks from floating car data (FCD) that was integrated with multispectral remote sensing images in metropolitan areas. This methodology is divided into two basic steps. Firstly, a spatial local statistical examination is carried out to extract the nodes of each road segment. Based on the local Mora...

Journal: :Remote Sensing 2014
Alberto Villarino Belén Riveiro Joaquín Martínez-Sánchez Diego González-Aguilera

This work reports the results obtained over several years of research into the application of different geomatic techniques in the field of civil engineering and, in particular, in their application to the management of road systems and associated structures. Among the main advances obtained are the quantification of parameters during the inventorying and inspection of infrastructures, the metr...

Journal: :PLoS Computational Biology 2007
Thomas C. Erren

Within the ‘‘Ten Simple Rules’’ series in PLoS Computational Biology, Dr. Bourne suggests that for younger investigators it is better to publish one paper in a quality journal rather than having multiple papers in lesser journals [1]. While this is certainly advisable, it can be very difficult. Indeed, for young scientists or, more to the point, for researchers with a short record of publicatio...

2004
Peter Mieth Stefan Lorkowski Ralf-Peter Schäfer

This paper presents the results of a case study of road infrastructure assessments of two large German cities, namely Berlin and Munich. The major aim is to investigate the quality of the main road network as a whole and to identify infrastructure deficiencies. The used methodology is based on integral assessment criteria derived from comprehensive traffic monitoring data. These data are collec...

2003
M. Gerke M. Butenuth C. Heipke

The update of geodata 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 possibly outdated vector data from databases with remotely sensed imagery and/or other current information. In this paper we present a system for automated update of road databases using d...

2010
By Ted Morris John Hourdos Max Donath Laura Phillips

Historically, traffic on the Denali Park Road has been limited in order to protect wildlife and improve visitor experience. The Denali Park Road is one example of a park roadway facing increasing visitation and pressure to change or defend the current limits on traffic. To respond to such pressures, park and protected area managers need a greater understanding of the impacts of traffic volume a...

2014
M. Kumar

High Resolution satellite Imagery is an important source for road network extraction for urban road database creation, refinement and updating. However due to complexity of the scene in an urban environment, automated extraction of such features using various line and edge detection algorithms is limited. In this paper we present an integrated approach to extract road network from high resoluti...

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