Combination Pelvic and Upper Torso Operator and Occupant Restraint Systems for Off-Road Work Machines

2016 ◽  
Author(s):  
Keyword(s):  
Occupant Restraint Systems ◽  
Road Work

Review of recent developments on improvement of estimated regulatory documentation for road works

2021 ◽  
Vol 2021 (23) ◽  
pp. 31-42
Author(s):  
Anatolii Tsynka ◽  
◽  
Andrii Hrinchuk ◽  
Ivan Rakovych ◽  
◽  
...  
Keyword(s):  
Work Performance ◽  
New Technologies ◽  
Operation Time ◽  
Road Construction ◽  
Labor Costs ◽  
The Road ◽  
Regulatory Documents ◽  
Road Work ◽  
Investment Process ◽  
The Cost

Introduction. In the modern conditions of the pricing system in the construction of Ukraine, the key value have the estimated norms, which are presented in separate collections, the main purpose of which is to determine the standard quantity of resources required to perform a particular type of work as a basis for the transition to the cost indicators. In order to determine the cost of road work objectively and accurately, it is essential that the indicators of estimated norms meet the requirements of regulatory documents and modern methods of execution of road works.Problematics. In connection with the active improvement of the regulatory base of the road construction industry, permanent upgrade of road organizations technique fleet, the introduction of new technologies and materials in construction and operation of roads, improving the methods of work there is a discrepancy between the existing resource element of estimated norms and the actual conditions of work in terms of built-up labor costs, the operation time of machines and mechanisms and the range of materials. Accordingly, it affects the reliability and accuracy of determining the cost of road works.Purpose. Improvement and harmonization with actual working conditions and requirements of regulatory documents of industry regulatory and estimate base of resource elementary estimated norms for work performed during construction, reconstruction, repair and operational maintenance of roads and bridges to ensure reliable and valid technical, economic and estimated calculations.Materials and methods. During work performance the analysis of the regulatory documentation, establishing the requirements to the technology of road works and materials has been carried out. A number of chronometric observations with the measurement of time of road works in full-scale conditions was carried out. The obtained data were summarized, averaged and on their basis the indicators of the resource element of the estimated norms were estimated.Results. A review of the main amendments and additions, which came into force after the approval of Amendment No 2 SOU 42.1-37641918-035:2018 [1] and Amendment No 2 SOU 42.1-37641918-071:2018 [2], which were developed to improve the regulatory-estimate base for the calculation of road works, taking into account the requirements and provisions of existing regulatory documents taking into account the current state of scientific and technological progress in the road sector.Conclusions. The above analysis of the amendments that came into force with the approval of [1]. and [2] will systematize the innovations provided by the requirements of current regulatory documents on the calculation of the cost of road works and the development of relevant documents at all stages of the investment process, planning and organization of road works, as well as the writing-off of material resources. Review and systematization of recent improvements in the estimated regulatory documents for road works will provide an opportunity to optimally plan the use of available material, labor and financial resources, often limited.Keywords: public road, operational maintenance, investment documentation, overhaul and current repairs, machine, mechanism, regulatory document, resource element estimate norm, Standard of Organization of Ukraine.

Meta-analysis of the effect of road work zones on crash occurrence

2017 ◽  
Vol 108 ◽  
pp. 1-8 ◽  
Author(s):  
Athanasios Theofilatos ◽  
Apostolos Ziakopoulos ◽  
Eleonora Papadimitriou ◽  
George Yannis ◽  
Konstantinos Diamandouros
Keyword(s):  
Meta Analysis ◽  
Work Zones ◽  
Road Work

Convict Labor for Road Work

1917 ◽  
Vol 8 (2) ◽  
pp. 316
Author(s):  
Ira B. Cross ◽  
J. E. Pennybacker ◽  
H. S. Fairbank ◽  
W. F. Draper
Keyword(s):  
Convict Labor ◽  
Road Work

Influence of alexithymia, self-concept and health locus of control on alcohol consumption of young Portuguese

2011 ◽  
Vol 26 (S2) ◽  
pp. 75-75
Author(s):  
R. Lopes
Keyword(s):  
Alcohol Consumption ◽  
Male Gender ◽  
Self Concept ◽  
External Control ◽  
Life Styles ◽  
Alcohol Involvement ◽  
Data Collection Instrument ◽  
Control Locus ◽  
Academic Events ◽  
Road Work

Portugal still holds a leading place in the per capita consumption of alcohol at a world level, with high mortality rates due to hepatic cirrhosis, high indexes of road/work killings, besides a vast range of physical and mental, family and occupational health problems caused by alcohol. The narrow connection between juvenile/academic events and alcohol consumption makes youngsters vulnerable to this consumption.A descriptive-correlational and transversal study was conducted with a 552 students’ sample of the Nursing degree aiming to determine some psychological characteristics that might influence/predict alcohol use/abuse in youngsters: alexithymia, self-concept and health control locus. The data collection instrument comprehended: Graffar Social Classification; Toronto Alexithymia Scale (TAS20), What Do I Think Of Health, Self-Concept Clinical Inventory (SCCI) and Alcohol Involvement Scale (AIS).Male gender is related to alcohol involvement (rho = −0.276; p = .000), revealing that 35% of the male gender and 7% of the female are normally drinkers with problems.Externally oriented thought (F3-TAS20) (rho = .084; p = .048), the impulsiveness (F4-SCCI) (rho = .119; p = .005) and the external control locus (rho = .118; p = .005) are correlated to the involvement with alcohol.Hierarchic multiple regression revealed as behaviour predictor variables of that involvement: gender (3.8%; p = .000), impulsiveness (1.4%; p = .005) and self-efficiency with inverse relation (F2-SCCI) (1.0%; p = .015).It is concluded that the choice of preventive strategies must be focused in actions that facilitate personal and social development, that promote personal and social skills, culminating in a freedom of choice by healthy behaviours and life-styles, diminishing the risk of PLA.

Flint Stations in Central Alaska

1948 ◽  
Vol 14 (2) ◽  
pp. 116-120 ◽  
Author(s):  
Ivar Skarland ◽  
J . L. Giddings
Keyword(s):  
Late Pleistocene ◽  
Circumstantial Evidence ◽  
Interior Alaska ◽  
Archaeological Work ◽  
Road Work ◽  
The University

Our knowledge of the prehistory of interior Alaska is still very limited. Nearly all archaeological work in the territory has been in the Eskimo and Aleut regions. In the interior planned, systematic surveys have been conducted by Froelich Rainey, Frederica de Laguna, and Frederick Johnson, but most of these deal with relatively recent Athapascan sites. The only definitely pre-Athapascan site is the “Campus site” on the University of Alaska campus.From time to time random specimens are found in connection with road work, farming, and mining. Artifacts discovered in the Tanana Valley muck deposits, often at great depths, suggest, but do not prove, that man was contemporaneous with mammoth and other now extinct animals of the Pleistocene. One specimen found in association with a mastodon jaw, but not actually embedded in the bone, adds to the circumstantial evidence that man was here in the late Pleistocene, if not earlier.

Finite Element Modeling of Non-Orthogonal Loosely Woven Fabrics in Advanced Occupant Restraint Systems

2001 ◽  
Author(s):  
Romil R. Tanov ◽  
Marlin Brueggert
Keyword(s):  
Finite Element ◽  
Material Model ◽  
General Purpose ◽  
Woven Fabrics ◽  
Element Analysis ◽  
Correct Operation ◽  
Explicit Finite Element ◽  
Analysis Scheme ◽  
Occupant Restraint Systems ◽  
Protection Devices

Abstract The behavior of loosely woven fabrics differs significantly from other types of woven fabrics. Its unique characteristics have been successfully utilized for the correct operation of some recently developed occupant protection devices for the automotive and heavy machine and truck industry. However, this behavior cannot be efficiently modeled using the currently available material models within a finite element analysis scheme. Therefore, the aim of this work is to present the basics of a formulation of a material model for the analysis of loosely woven fabrics and its implementation in a general-purpose explicit finite element code. To assess the performance of the model, results from the simulation are presented and compared to real test data.

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