نتایج جستجو برای: road transportation

تعداد نتایج: 123924  

2012
Ardavan Rahimian

An Intelligent Transportation System (ITS) is a system based on wireless communications which has been investigated for many years in order to provide new technologies able to improve safety and efficiency of road transportation with integrated vehicle and road systems. It combines all aspects of technology and systems design concepts in order to develop and improve transportation system of all...

2009
Hannah Bast

There are two kinds of people: those who travel by car, and those who use public transport. The topic of this article is to show that the algorithmic problem of computing the fastest way to get from A to B is also surprisingly different on road networks than on public transportation networks. On road networks, even very large ones like that of the whole of Western Europe, the shortest path from...

Journal: :International journal of environmental research and public health 2015
Martina S Ragettli Sophie Goudreau Céline Plante Stéphane Perron Michel Fournier Audrey Smargiassi

There is a lack of studies assessing the exposure-response relationship between transportation noise and annoyance in North America. Our aims were to investigate the prevalence of noise annoyance induced by road traffic, trains and airplanes in relation to distance to transportation noise sources, and to total environmental noise levels in Montreal, Canada; annoyance was assessed as noise-induc...

2015
S. Ural J. Shan M. A. Romero A. Tarko

Transportation agencies require up-to-date, reliable, and feasibly acquired information on road geometry and features within proximity to the roads as input for evaluating and prioritizing new or improvement road projects. The information needed for a robust evaluation of road projects includes road centerline, width, and extent together with the average grade, cross-sections, and obstructions ...

2010
Tarek Sayed

There are two main transportation engineering approaches to improving road safety: reactive and proactive. The traditional reactive approach consists of implementing the necessary improvements to existing hazardous (black-spot) sites in order to improve safety at these sites. The proactive approach is a collision prevention approach that tries to prevent unsafe road conditions from occurring in...

Journal: :ارتقای ایمنی و پیشگیری از مصدومیتها 0
الهه عینی elaheh ainy دانشگاه علوم پزشکی شهید بهشتیسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) حمید سوری hamid soori دانشگاه علوم پزشکی شهید بهشتیسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences)

background and objective : to resource allocating at national levels as results of productivity, cost calculation helps to determine the size of the problem and revealed cost benefits of injury prevention and it can also ensure the better resource using and cost benefit assessment. this study was conducted to determine the method of calculating road traffic injuries cost. materials and methods:...

2016
SONG MINGLEI Song Minglei Weng

Objective: To improve the reliability of complex urban public transportation network. Methods: Establishing the reliability evaluation system of urban public transportation network. Process: The paper introduces the development of urban traffic construction, describes the characteristic parameters of complex networks, and establishes the model of the reliability evaluation index system of compl...

2004
Yongmei Lu Junmei Tang

A city and its transportation network are both complicated systems. Fractal geometry provides an effective way to describe the complex property of geographical features. This paper uses a modified box-counting method to describe the fractal property of urban transportation networks. Assuming that human settlements of different sizes are all operated by the same growth procedure, this paper inve...

2006
Mingzhe Li Yan Zhang

The transportation of people and goods has been necessary in any society for thousands of years. In modern times, transportation has become a foundation component of human activity. A great deal of problems related to traffic and transportation have been ingeniously resolved in the past and perhaps an even greater number of problems will have to be overcome in the future. Now it has been realiz...

2004
Ajay Singh Richard T. T. Forman

The field of road ecology, slowly emerging over two decades, offers great promise to transportation, nature and society, and a recent book, Road Ecology: Science and Solutions, should help catalyze the field. The objective of this article is to provide additional insight into the book by highlighting its process of development, and pinpoint some underlying bases for expecting the field to accel...

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