نتایج جستجو برای: urban roadside

تعداد نتایج: 173429  

2012
Sheng-Lan Zeng

Urbanization and related anthropogenic modifications cause extent of habitat fragmentation and directly lead to decline of local biodiversity. Conservation biologists advocate corridor creation as one approach to rescue biodiversity. Here we examine the utility of roads as corridors in preserving plant diversity by investigating roadside vegetation in Yellow River Delta (YRD), China. We examine...

Journal: :journal of advances in computer research 0

today, vehicular ad-hoc network between automobiles has been accepted by the public, and many people are interested in exchanging information with other vehicles as well as with roadside equipment while driving. when a number of vehicles want to access to the data stored in rsu ,the priority of servicing comes into face .in this case, some  methods, such as d*s, d*s/n,  have been presented so f...

Journal: :Nature 2013

Journal: :Environmental Pollution 2021

Exposure to elevated particulate matter (PM) pollution is of great concern both the general public and air quality management agencies. At urban traffic intersections, for example, pedestrians are often at a higher risk exposure near-source PM from while waiting on roadside or walking in crosswalk. This study offers an in-depth investigation pedestrian intersection. Fixed-site measurements near...

2007
E D S van Vliet P L Kinney

Air quality is a serious and worsening problem in the rapidly growing cities of sub-Saharan Africa (SSA). However, the lack of ambient monitoring data, and particularly urban roadside concentrations for particulate matter in SSA cities severely hinders our ability to describe temporal and spatial patterns of concentrations, characterize exposure–response relationships for key health outcomes, e...

Journal: :Southern Spaces 2005

2011
Brijesh Verma David R. B. Stockwell

This paper presents a neural network based novel automated system that can analyze vehicle mounted video data for improving road safety. There are video data collection systems currently available although no tools exist which could be used to automatically analyze vehicle mounted video data and estimate future crash sites. The main aim of the research presented in this paper is to develop a te...

Journal: :ISPRS international journal of geo-information 2023

Vehicular ad hoc networks (VANETs) are a type of mobile network that forms unified wireless communication between vehicles and roadside nodes. Roadside units (RSUs), as the infrastructure key component VANETs, play critical role in improving performance VANETs. Their deployment can effectively improve network. The goal RSU (RSUD) problem is to install few RSUs possible on both sides roads or in...

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