نتایج جستجو برای: traffic effects

تعداد نتایج: 1635368  

Accurate estimation of saturation flow rate is a prerequisite for accurate estimation of level of service and delays of signalized intersections. Saturation flow rate of intersections depends on many factors, including traffic behavior and culture. One of the important problems of traffic behavior in Iran is the violation of law at the physical region of intersections. The main purpose of this ...

Pedestrians are among the most vulnerable road users. Speed of vehicles is considered as one of the major causes of danger for pedestrians crossing the street. Therefore, it is of utmost importance to devise suitable solutions to reduce speed of vehicles. One of these solutions is installation of Pedestrian Refuge Islands (PRI) in very wide midblocks. With regard to fluctuations in pedestrian a...

خسروی شادمانی, فاطمه, زایری, فرید, سوری, حمید, کرمی, منوچهر,

  Background & Objectives : World Health Organization has recommended the main strategies for the prevention of road traffic injuries on some of the risk factors. This study aimed to prioritize the preventive interventions according to risk factors of road traffic injuries in Iran.   Methods: The potential impact fraction (PIF) of the main strategies for prevention was analyzed from national tr...

بایرامی, زهرا , توانا, مریم , خاکسار, شهربانو , شکرزاده, محمد, عبدالهی, محمد , محسنی, حبیبه سادات , ملکی راد, علی‌اکبر ,

Background and purpose: In the past century, concerns about the harmful effects of lead, cadmium and other toxic agents has been increasing emitted from automobile exhaust on human health. The present study investigated the concentrations of lead-cadmium in blood of traffic officers and taxi drivers in Arak, Iran, in experimental group compared to a control group. Materials and methods: The su...

Journal: :international journal of civil engineering 0
l. zhang beijing university of technology

short-term traffic flow forecasting plays a significant role in the intelligent transportation systems (its), especially for the traffic signal control and the transportation planning research. two mainly problems restrict the forecasting of urban freeway traffic parameters. one is the freeway traffic changes non-regularly under the heterogeneous traffic conditions, and the other is the success...

Journal: :مجله علوم اعصاب شفای خاتم 0
nader rahmani amin police university, tehran, iran. alireza adamizadeh amin police university, tehran, iran.

today, the number of drivers and traffic users is increasing. so, it is necessary to know that the human factor has the most important factor in the traffic. thus, any behavior change or fault that arises from human factor (for example drivers) can have inappropriate impacts on the traffic. so, it is important that traffic users be trained about the effectiveness and attention to the traffic si...

Journal: :مجله علوم اعصاب شفای خاتم 0
adel ebrahimpour taleghani hospital, shahid beheshti university of medical sciences, tehran, iran narges beyraghi taleghani hospital, shahid beheshti university of medical sciences, tehran, iran mohammad hossein chegini orthopedic surgeon, atieh hospital, tehran, iran

road traffic accidents (rta) are one of the most important causes of death and disability all over the world. in developing countries the problem is more complicated. based on the estimation by unicef, rate of rta in iran is 20 times more than world’s average. in iran among all unintentional fatal injuries inflicted on children under five, traffic related fatalities are the leading cause of dea...

2001
Andreas Schadschneider

The modelling of traffic flow using methods and models from physics has a long history. In recent years especially cellular automata models have allowed for large-scale simulations of large traffic networks faster than real time. On the other hand, these systems are interesting for physicists since they allow to observe genuine nonequilibrium effects. Here the current status of cellular automat...

Adel Ebrahimpour, Mohammad Hossein Chegini, Narges Beyraghi,

Road traffic accidents (RTA) are one of the most important causes of death and disability all over the world. In developing countries the problem is more complicated. Based on the estimation by UNICEF, rate of RTA in Iran is 20 times more than world’s average. In Iran among all unintentional fatal injuries inflicted on children under five, traffic related fatalities are the leading cause ...

2000
Andreas Schadschneider

The modelling of traffic flow using methods and models from physics has a long history. In recent years especially cellular automata models have allowed for large-scale simulations of large traffic networks faster than real time. On the other hand, these systems are interesting for physicists since they allow to observe genuine nonequilibrium effects. Here the current status of cellular automat...

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