نتایج جستجو برای: road transportation
تعداد نتایج: 123924 فیلتر نتایج به سال:
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...
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...
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...
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 ...
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...
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:...
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...
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...
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...
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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