نتایج جستجو برای: road performance

تعداد نتایج: 1113285  

Journal: :علوم و تکنولوژی پلیمر 0
سید مجتبی میرعابدینی مهرداد شریفی مینا حقایق شاهین شعبانی پیمان بختیاری

in this study, the effect of hydrocarbon and rosin ester resins combination on the physical and mechanical properties of thermoplastic road markings were evaluated. at first, two basic thermoplastic road marking formulations based on hydrocarbon and rosin ester resins were prepared. several samples of the blends of two basic formulations for thermoplastic road marking were characterized and com...

The policy of driving organization such as Highways Agency is towards the use of performance related specifications. This policy and adoption of European wide aggregate standards on the one hand, and sustainable construction pressures on the other, all strongly emphasize on further need for more developments to specifications and performance assessment methodologies inst...

2017
Leng Jun-qiang Yang Long-hai Wei-yi Liu Lin Zhao

This paper focuses on the development of a method for road network vulnerability analysis, from the perspective of capacity degradation, which seeks to identify the critical infrastructures in the road network and the operational performance of the whole traffic system. This research involves defining the traffic utility index and modeling vulnerability of road segment, route, OD (Origin Destin...

Road traffic volumes in intercity roads are generally estimated by probability functions, statistical techniques or meta-heuristic approaches such as artificial neural networks. As the road traffic volumes depend on input variables and mainly road geometrical design, weather conditions, day or night time, weekend or national holidays and so on, these are also estimated by pattern recognition te...

Journal: :مجله علوم اعصاب شفای خاتم 0
ahmad ali lotfinia shefa neuroscience research center, khatam alanbia hospital, tehran, iran.

sleep deprivation is a condition of not having enough sleep it can be either chronic or acute. a chronic sleep-restricted state can cause fatigue. fatigue is a subjective state related to sleep deprivation, the more someone is deprived of sleep the more likely that person is to be fatigued. several studies indicated that drowsiness/fatigue can affect steering performance and speed control. rese...

ژورنال: سلامت کار ایران 2013
اصیلیان مهابادی, حسن, حاجی زاده, ابراهیم, پویاکیان, مصطفی, یزدی, منور,

Background and aims:Traffic safety has been influenced by mobile phone induced distractionwhile driving and related car crashes. The effects of audio-verbal tasks on driving performances likebreak reaction time, hazard detection time and deviation from lane have been studied by manyresearchers. But driver’s audio-verbal performance in has not received more attention. The effect ofdriving task o...

2001

Pursuant to Article 1 of the Convention signed in Paris on 14th December 1960, and which came into force on 30th September 1961, the Organisation for Economic Cooperation and Development (OECD) shall promote policies designed: – to achieve the highest sustainable economic growth and employment and a rising standard of living in Member countries, while maintaining financial stability, and thus t...

1995
H. D. Taghirad E. Esmailzadeh

abstract An analytical investigation of a half-car model including passenger dynamics, subjected to random road disturbances is performed, and the advantage of active over conventional passive suspension systems are examined. Two diierent performance indices for optimal controller design are proposed. The performance index is a quantiication of both ride comfort and road handling. Due to practi...

2015
Peter Heywood Paul Richmond Steve C. Maddock

Demand for high performance road network simulation is increasing due to the need for improved traffic management to cope with the globally increasing number of road vehicles and the poor capacity utilisation of existing infrastructure. This paper demonstrates FLAME GPU as a suitable Agent Based Simulation environment for road network simulations, capable of coping with the increasing demands o...

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