نتایج جستجو برای: phase traffic flow theory

تعداد نتایج: 1833387  

Traffic conditions vary over time, and therefore, traffic behavior should be modeled as a stochastic process. In this study, a probabilistic approach utilizing Autocorrelation is proposed to model the stochastic variation of traffic conditions, and subsequently, predict the traffic conditions. Using autocorrelation of the time series samples of density and flow which are collected from segments...

Journal: :international journal of smart electrical engineering 0
shiva rahimipour amirkabir university of technology mahnaz mohaqeq amirkabir university of technology s.mehdi hashemi amirkabir university of technology

short term prediction of traffic flow is one of the most essential elements of all proactive traffic control systems. although various methodologies have been applied to forecast traffic parameters, several researchers have showed that compared with the individual methods, hybrid methods provide more accurate results . these results made the hybrid tools and approaches a more common method for ...

Journal: :Human factors 2009
Joel M. Cooper Ivana Vladisavljevic Nathan Medeiros-Ward Peter T. Martin David L. Strayer

OBJECTIVE The purpose of this study was to explore the interrelationship between driver distraction and characteristics of driver behavior associated with reduced highway traffic efficiency. BACKGROUND Research on the three-phase traffic theory and on behavioral driving suggests that a number of characteristics associated with efficient traffic flow may be affected by driver distraction. Prev...

2014
Shuguo Yang

It is practically significant to research the traffic flow of intersection because the capacity of intersection affects the efficiency of highway network directly. This paper analyzes the traffic conditions of an intersection in certain urban by the methods of queuing theory and statistical experiment, sets up a corresponding mathematical model and compares it with the actual values. The result...

2013
Li Yang Junhui Hu Lingjiang Kong

Based on the two-dimension cellular automaton traffic flow model (BML model), a mixed traffic flow model of urban traffic that considering the transit traffic is established in this paper by using theDon't block the box rules. We have investigated the influences of the transit traffic ratio, and found that, in most cases, the urban traffic flow exhibited jam phase. Moreover, focusing on the tra...

Journal: :international journal of transportation engineereing 2014
krishna saw b. k. katti g. joshi

rapid urban growth is resulting into increase in travel demand and private vehicle ownership in urban areas. in the present scenario the existing infrastructure has failed to match the demand that leads to traffic congestion, vehicular pollution and accidents. with traffic congestion augmentation on the road, delay of commuters has increased and reliability of road network has decreased. four s...

Short term prediction of traffic flow is one of the most essential elements of all proactive traffic control systems. Although various methodologies have been applied to forecast traffic parameters, several researchers have showed that compared with the individual methods, hybrid methods provide more accurate results . These results made the hybrid tools and approaches a more common method for ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده مهندسی مکانیک 1382

در این تحقیق جریان دو فاز جامد- مایع به روش لاگرانژی در سیال بسیار لزج به منظور ردگیری ذرات در کانالهای انشعابی شبیه سازی شده است. کانالهای انشعابی به عنوان جدا کننده ی فاز برای تغلیظ یا ترفیق کردن جریان دو فاز در صنایع غذایی، صنایع نفت و گاز، نیروگاهها، صنایع تولید هیدروکربن و ... مورد استفاده قرار می گیرند. نکته مهم در استفاده از کانالهای انشعابی بصورت یک وسیله جدا کننده این است که توزیع دلخو...

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