نتایج جستجو برای: length of road

تعداد نتایج: 21183280  

A Shahcheraghi, S Gholampour, SA. Mansouri,

Background: The road to respond to the needs of today's modern world, affected by the advancement of technological tools, seeks to increase speed and increasing safety. This study seeks to improve the landscape quality of roads, explains the effective criteria in road design and the need to pay attention to the category of design ethics and emphasizes them. Conclusion: In order to increase the...

BACKGROUND AND OBJECTIVES: The significance of road mobility in any nation cannot be far-fetched or beyond economic purpose, spatial interaction and social integration. It contributes enormously to the livelihood of human existence most especially by facilitating regional complementarity of trade, intervening opportunities, and spatial transferability. The objective of this stu...

2017
Lucian-Ionel Cioca Larisa Ivascu

Road accidents are a major societal issue for every country. The purpose of this paper is to assess the number of traffic and road accidents depending on a series of variables (collision mode, road configuration, conditions of occurrence, road category, type of vehicle involved, personal factors, and length of time of the driving license) in Romania from 2012–2016. The analysis of the road acci...

Information on the productivity, costs and applications of the logging system is a key component in the evaluation of management plans for the rehabilitation and utilization of Caspian forests. Skidding and road construction costs are expensive forest operations. Determining the optimum forest road network density is one of the most important factors in sustainable forest management. Logging me...

ژورنال: پیاورد سلامت 2021
Atapour, Hashem, Ghasemzadeh, Fatemeh, Hamdipour, Afshin,

Background and Aim: Road injuries are one of the most important public health problems and the leading cause of death and injury all over the world. The aim of this study is to investigate the trend of publication in the domain of road incidents and injuries and to visualize its scientific structure. Materials and Methods: The present study is of scientometric type, its method is cross-section...

Journal: :ارتقای ایمنی و پیشگیری از مصدومیتها 0
محمود بختیاری m bakhtiyari دانشگاه علوم پزشکی تهرانسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) حمید سوری h soori دانشگاه علوم پزشکی شهید بهشتیسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences)

background and aims: traffic crashes are multi-factorial consequences caused by human factors, technical issues and environmental conditions. the present study aimed to determine epidemiology of urban traffic injuries in iran and role of some human risk factors in occurrence of such outcomes in 2010. materials and methods: through a descriptive cross-sectional study, the records of 515205 injur...

ژورنال: امداد و نجات 2016
اویسی, نادر, اکبری, مجتبی, بای, مسعود, بای, ناصر, تجری, سعید, میرزازنجانی, پوریا,

Background: The high number of road accidents and fatalities make it necessary to select and develop relief and rescue road bases more than ever. Several factors are involved in the selection of relief and rescue bases which is not possible to analysis all aspects with traditional methods. Golestan province is located in the northern transit route and welcomes millions of travelers every year d...

Journal: :مکانیک سیالات و آیرودینامیک 0
عبدالامیر بک خوشنویس وحید برزنونی

the aerodynamics of road vehicles has frequently been studied in simplified geometries to separate the effect of various components on aerodynamic drag and on near wake flow dynamics. in this work, the characteristics of the near wake of a notch-back car model were investigated, using hot-wire anemometer. the main objectives of this study are to gain a better understanding of the flow structure...

2013
Arto Niskanen Ari Tuononen

The tyre-road contact area was studied visually by means of a high-speed camera and three accelerometers fixed to the inner liner of the tyre carcass. Both methods show a distorted contact area in wet conditions, but interesting differences appeared. First, the contact area in full aquaplaning seems strongly distorted on a glass plate when subjected to visual inspection, while accelerometers in...

Journal: :international journal of architecture and urban development 2014
md. mahmud hassan talukdar

to cope with the urban congestion problem resulted from rapid urbanization some cities are successfully using electronic road pricing policy as a demand management measure. in 1982, hong kong governmenttook initiative to experiment electronic road pricing in hong kong. though, the project outcome reveals that electronic road pricing could bring tremendous economic, social and environmental bene...

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