نتایج جستجو برای: urban roadside
تعداد نتایج: 173429 فیلتر نتایج به سال:
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...
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...
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...
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...
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...
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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