Results 251 to 260 of about 981,881 (296)

Road-network agglomeration, road density, and protected-area fragmentation

Letters in Spatial and Resource Sciences, 2012
This paper develops a new measure of the spatial pattern of roads in an area, named the Road Network Agglomeration Index (RNAI), and explores the impact of this dimension of road networks on spatial patterns of conservation networks. RNAI is more spatially descriptive than road density measures used commonly in analyses of conservation patterns, and ...
Heidi J. Albers, Amy W. Ando, Meidan Bu, Michael G. Wing   +3 more
openaire   +1 more source

Road scene analysis for determination of road traffic density

Frontiers of Computer Science, 2014
Road traffic density has always been a concern in large cities around the world, and many approaches were developed to assist in solving congestions related to slow traffic flow. This work proposes a congestion rate estimation approach that relies on real-time video scenes of road traffic, and was implemented and evaluated on eight different hotspots ...
Omar Al-Kadi, Osama Al-Kadi, Rizik Al-Sayyed, Ja’far Alqatawna   +3 more
openaire   +1 more source

Power Spectral Density of Road Profiles

Vehicle System Dynamics, 2001
The road profile is usually considered to be a random process x (d), where x is the road height and d is the distance along the road. As the vehicle travels along the road with velocity v, the random process x (d) is converted to a random process x (t) which is input to the vehicle suspension via the tyre.
Davis, B., Thompson, A.
openaire   +2 more sources

A Distributed Measurement of Road Density

2018 IEEE International Conference on Communications (ICC), 2018
Vehicular Ad-hoc networks (VANETs) are a specific class of Mobile Ad-hoc Networks made by vehicles communicating among themselves in roads in urban and rural environments. The well-known unicast routing protocols implemented for MANETs (Mobile Area Networks) are not suitable for VANETs due to high mobility.
Tawfiq Nebbou, Hacene Fouchal, Mohamed Lehsaini   +2 more
openaire   +1 more source

A road density partition method for the evaluation of road selection

2015 23rd International Conference on Geoinformatics, 2015
Road density is a useful index widely employed in the analysis of ecological effects, road network planning, delimitation of urban areas and road network generalization. The evaluation of generalization result is a key issue in the field of automated map generalization.
null Huaqiang Fang, null Chang Ren, null Liupeng Lin, null Fuquan Xiong, null Jing Tian   +4 more
openaire   +1 more source

Modeling AADT on local functionally classified roads using land use, road density, and nearest nonlocal road data

Journal of Transport Geography, 2021
Abstract The focus of this research is to model the influence of road, socioeconomic, and land-use characteristics on local road annual average daily traffic (AADT) and assess the model's predictability in non-covered location AADT estimation. Traditional ordinary least square (OLS) regression and geographically weighted regression (GWR) methods were
Srinivas S. Pulugurtha, Sonu Mathew
openaire   +1 more source

Road traffic density estimation in vehicular networks

2013 IEEE Wireless Communications and Networking Conference (WCNC), 2013
Road traffic density estimation provides important information for road planning, intelligent road routing, road traffic control, vehicular network traffic scheduling, routing and dissemination. The ever increasing number of vehicles equipped with wireless communication capabilities provide new means to estimate the road traffic density more accurately
null Ruixue Mao, null Guoqiang Mao
openaire   +1 more source

Density Based Clustering Methods for Road Traffic Estimation

2020 IEEE REGION 10 CONFERENCE (TENCON), 2020
Multiple object detection using deep neural networks can lead to transportation vehicles estimate, a necessary requirement for prediction and management of road traffic and parking lot. Highly overlapped objects that look similar and objects that are there at far distances have lesser probability of detection by state-of-art techniques.
Jagadish D. N, Lakshman Mahto, Arun Chauhan   +2 more
openaire   +1 more source

Effects of road density on regional food webs

Conservation Biology
Abstract Roads stand as major threats to biodiversity because they affect the functioning of ecosystems and the provision of ecosystem services. Understanding how the effects of roads affect the dynamics of ecological interactions is essential to managing human impacts on biodiversity, but such studies are few. We investigated species
F. Mestre, V. A. G. Bastazini, F. Ascensão   +2 more
openaire   +3 more sources

Proposal of Lighting Power Density for Road Lighting

Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, 2011
The design of road lighting is aiming illuminance and luminance requirements for road lighting. In the process, various factors associated with luminaires such as luminous efficacy, light distribution, mounting height, spacing and maintenance factor are considered. However, there has been no restriction on lighting power density.
Sang-Jin Lee, Min-Wook Lee, Hoon Kim
openaire   +1 more source