Performance Assessment of Crash Barriers used in Road Safety: A Case Study of Malekhu Kurintar Section of the Prithvi Highway

2020 ◽  
Vol 8 ◽  
pp. 65-70
Author(s):  
Saru Bati ◽  
Thusitha Chandani Shahi
Keyword(s):  
Road Accident ◽  
Analysis Tool ◽  
Accident Rate ◽  
Severe Injuries ◽  
The Road ◽  
Valley Side ◽  
Single Vehicle ◽  
Computer Based ◽  
The Impact

Hill roads in Nepal are comprised of critical geometry and limited roadway clearances. It causes high number of runoff roadway type of accidents with single vehicle. These accidents often carry huge number of fatalities and severe injuries. Installation of crash barriers is the most effective way of preventing such accidents along hill roads. However, the existing practice of construction of crash barriers does not show the satisfactory results. Therefore, this research aimed at the evaluation of typical crash barriers constructed along the valley side of highway. Analysis of the road accident of Malekhu-Kurintar section of Prithvi Highway record shows that this section has relatively higher accident rate and most of the accidents are runoff roadway type. Further, these accidents are mainly caused due to either the absence or the failure of the crash barriers along the valley side of the highway. On the basis of field records, kinetic energy absorbed by the crash barriers and their deflections was investigated by application of computer based analysis tool ABAQUS V6.10. It has given satisfactory results on the deflection of W-beam and plum concrete barriers due to the impact of vehicle moving in various range of speed.

scholarly journals Case Study for Road Safety Audit of Aurangabad City

2020 ◽  
Vol 170 ◽  
pp. 06008
Author(s):  
Prashant Awsarmal ◽  
S. L. Hake ◽  
Shubham Vaidya ◽  
P. K. Bhandari ◽  
M. P. Wagh
Keyword(s):  
Road Safety ◽  
Human Life ◽  
Research Work ◽  
Police Department ◽  
Road Accident ◽  
Audit Process ◽  
Severe Injuries ◽  
The Road ◽  
Road Geometry ◽  
Road Safety Audit

Efficient road network is a part-n-parcel of rapid industralization, urbanization and development of nation. While designing roads and highways, main emphasis is given on speed which will help to reduce time of journey and save fuel. But safety of drivers and passengers travelling along road is also important. In past, it was observed that while travelling, due to excess speed passengers safety was compromised. It will lead to accidents. It may cause severe injuries and loss of human life. Therefore it is important to check every aspect of vehicles as well as road during its design, construction and throughout the life of the road. Road safety audit is conducted to check performance of new road projects on grounds of offering maximum safety. Also checks are applied to study performance of existing roads to suggest repairs, rehabiliatation and maintenance work in order to improve condition of roads. During audit process, accident prone locations are identified. Past accident record from traffic department, Police department, hospitals etc are referred to understand damage that had occured. Even road geometry is investigated on technical basis. In present investigation, particular stretch of Beed Bypass Road passing through Aurangabad city in Maharashtra state, India was selected. On this road, accident sites where major accidents occurred in past were identified and investigated for different parameters. Based upon study, different causes of accidents and thereafter preventive methods were recommended during research work.

scholarly journals Assessment of the Impact of CO, NOx and PM10 on Air Quality during Road Construction and Operation Phases

2020 ◽  
Vol 12 (24) ◽  
pp. 10549
Author(s):  
Marinella Giunta
Keyword(s):  
Air Quality ◽  
Comprehensive Evaluation ◽  
Dispersion Model ◽  
Road Construction ◽  
Air Emissions ◽  
Unpaved Road ◽  
The Road ◽  
The Impact ◽  
Co Concentrations

The road sector is one of the main sources of air emissions in the atmosphere during both construction and operation. The objective of the present paper is a comprehensive evaluation of the impact on air quality during the two main phases of life cycle of roads. In this case study of a motorway project, the emissions of the primary pollutants, CO, NOx, and PM10 are estimated, and the results showed that (i) CO and NOx pollutants released during both phases are comparable, while the emissions of PM10 are more significant in the construction phase; (ii) 85% of PM10 in construction is due to storage, transit on unpaved road, and crushing; (iii) the portals of the tunnel are the sites where there are higher concentrations of pollutants in operation; and (iv) the CO concentrations estimated by the dispersion model are strongly influenced by the topography.

Evaluating the Impact of Socioeconomics, Land Use, Built Environment, and Road Facility on Cyclist Safety

2017 ◽  
Vol 2659 (1) ◽  
pp. 33-42 ◽  
Author(s):  
Ahmed Osama ◽  
Tarek Sayed
Keyword(s):  
Land Use ◽  
Built Environment ◽  
Prediction Models ◽  
Spatial Effects ◽  
Severe Injuries ◽  
Bayesian Techniques ◽  
The Road ◽  
Safety Models ◽  
Light Pole ◽  
The Impact

With the increasing demand for sustainability, the use of cycling as an efficient active mode of transportation is being encouraged. However, the vulnerability of cyclists to severe injuries in crashes can discourage road users from cycling. Therefore, the study of the factors that affect the safety of cyclists is important. This paper describes an investigation of the relationship between cyclist–motorist crashes and various traffic zone characteristics in Vancouver, British Columbia, Canada. The goal was to assess the impacts of socioeconomics, land use, the built environment, and the road facility on cyclist safety through the use of macrolevel collision prediction models. The models were developed by generalized linear regression and full Bayesian techniques. An actual bike exposure indicator (the number of bike kilometers traveled) and the number of vehicle kilometers traveled were used as exposure variables in the models. The safety models showed that cyclist–motorist crashes were nonlinearly associated with an increase in bike, vehicle, and transit traffic as well as socioeconomic variables (i.e., population, employment, and household densities), variables related to the built environment (transit stop, traffic signal, and light pole densities), commercial area density, and the proportion if arterial–collector roads. The models revealed, however, a decline in cyclist–motorist crashes in association with an increase in the proportions of local roads and off-street bike links and an increase in recreational and residential area densities. The spatial effects were accounted for in the full Bayes models and were found to be significant; such a finding implies the importance of consideration of the spatial correlation in the development of macrolevel cyclist safety models.

scholarly journals ANALYSIS OF THE IMPACT OF MAXIMUM VEHICLE LOAD AT THE AGE OF FLEXIBLE PAVEMENT (CASE STUDY OF THE ROAD SECTION OF HERA DILI TIMOR-LESTE

Neutron ◽  
2020 ◽  
Vol 19 (2) ◽  
pp. 51-61
Author(s):  
Junizia Elsa De Almeida ◽  
Koespiadi
Keyword(s):  
Service Life ◽  
Heavy Traffic ◽  
Heavy Vehicles ◽  
The Road ◽  
Goods And Services ◽  
Road Section ◽  
Calculation Results ◽  
Load Increase ◽  
The Impact

The road network is a land transportation infrastructure that plays an important role in the transportation sector, especially for the balance of the distribution of goods and services, both from other regions. In this study, an analysis was conducted to find out how the influence of heavy vehicle volume increase on the service life of the road, while the method used was Bina Marga, the study was conducted by taking a case study on the Hera road section until Dili. This research is expected to find out how the service life of the road if the volume of heavy vehicles continues to increase. If the% of heavy vehicles increases, the thickness of the required surface layer will also be even greater. When% of vehicles or carrying heavy traffic loads are increased, the thickness of the existing layer cannot meet, because the calculation results with% of heavy vehicles increase by 10%, surface thickness 17.2 cm / This will cause the service life of the road to decrease because it is confirmed that the road will be damaged before the service period ends due to excessive load increase in heavy vehicles.

scholarly journals Theory and Practice of Quantitative Assessment of System Harmonicity: Case of Road Safety in Russia before and during the COVID-19 Epidemic

Mathematics ◽  
2021 ◽  
Vol 9 (21) ◽  
pp. 2812
Author(s):  
Artur I. Petrov ◽  
Victor I. Kolesov ◽  
Daria A. Petrova
Keyword(s):  
Road Safety ◽  
Quantitative Assessment ◽  
Road Accident ◽  
Theory And Practice ◽  
Systems Science ◽  
Population Mobility ◽  
Positive Role ◽  
The Road ◽  
General Utility ◽  
The Impact

People have had an interest in harmony issues for thousands of years; however, there is still no elaborated system of views on these questions. Ancient Greeks understood harmony as an agreement of opposites. A surge of interest in the study of the harmonic aspects of being occurred in the twentieth century due to the development of systems science, particularly regarding synergetic system effects. At the same time, there are still relatively few applications of synergetics because of the absence of an accurate methodology for the identification of system harmonicity. The aim of this research is to develop the methodology for the quantitative assessment of system harmonicity by considering a practical example: the quantitative assessment of the harmonicity of the road safety provision system (RSS) and its dynamics during the last 15 years (2006–2020). In addition, the impact of the COVID restrictions on population mobility in Russia in 2020, on the change in the harmonicity of the road safety provision system, is considered. During the research it was established that the quality factor g of the Russian road safety provision system changed from g2006 = 1.9565 to g2020 = 2.4646, which promoted the decline of the relative entropy of the Russian road safety provision system from Hn RSS 2006 = 0.8623 to Hn RSS 2020 = 0.7553. The deep reason for that change was the modification of relation between ”weights” or the significance of the contribution of different elements of the cause-and-effect chain in the formation of the factual level of the road accident rate in Russia in the last 15 years. The main conclusion of this research is that the harmonicity of the Russian road safety provision system, assessed by the normalized functional general utility GUn, has been increased, and it has already exceeded the level of harmonious reference systems GUn = 0.618. In fact, the normalized functional general utility GUnof the Russian road safety provision system increased from GUn RSS 2006 = 0.615 to GUn RSS 2020 = 0.652 (by 6.0%), from 2006 to 2020. Simultaneously, the share of the normalized used resource Xn declined, allowing a conclusion to be drawn about a significant improvement in the balance ”efficiency-quality” of the Russian road safety provision system. The COVID lockdown played a positive role in this process. Harmonicity of the Russian road safety provision system, assessed by the normalized general utility GUn RSS, increased by 0.46% from 2019 to 2020.

scholarly journals Impact 0f Prosecution Against Infringement Ticketing with Numbers Traffic Accidents in The Jurisdiction of Police Resort Semarang

2019 ◽  
Vol 2 (1) ◽  
pp. 1
Author(s):  
Rudi Hendri Basuki ◽  
Umar Ma�ruf
Keyword(s):  
Government Regulation ◽  
Traffic Accidents ◽  
Road Traffic ◽  
Traffic Enforcement ◽  
Accident Rate ◽  
The Road ◽  
Vehicle Inspection ◽  
Traffic Violations ◽  
On The Road ◽  
The Impact

This study aims to determine how is the implementation of the action by infringing traffic by a speeding ticket in the jurisdiction of Police in Semarang; How can the impact of infringing on a traffic enforcement with a ticket to the number of traffic accidents in the jurisdiction of Police in Semarang; and What constraints in action by infringing traffic by a speeding ticket in the jurisdiction of Semarang Police and how the solutions to overcome them.The method used by the author in this study is juridical empirical or sociological jurisdiction. Specifications of research used is descriptive analyticalBased on research conducted can be concluded that 1) Implementation of Traffic Violations Enforcement accordance with Government Regulation on Infringement Ticketing Act No. 80 Of 2012 on Procedures for� Vehicle Inspection and Enforcement Violations On the Road Traffic and Transportation Article 3, which reads� Vehicle Inspection; 2) The results in January to September 2018 is known that the impact of a speeding ticket to a very significant definitely one transport accident means the higher the number the lower the accident rate speeding ticket, speeding ticket conversely the lower the number the higher the number of accidents; and 3) Constraints in the prosecution of traffic violations by a speeding ticket in the jurisdiction of Semarang Police isThe lack of legal awareness in the society, lack of ability by the Police Authority problematic legislation, the lack of infrastructure to supportKeywords: Impact; Infringement; Traffic; Infringement Ticketing; Accident.

scholarly journals Improper Driver Action as a Cause of Road Accidents / Niewłaściwe Działania Kierowców Jako Przyczyna Powstawania Zdarzeń Drogowych

2012 ◽  
Vol 21 (1) ◽  
pp. 87-98
Author(s):  
Łukasz Muślewski
Keyword(s):  
Motor Vehicle ◽  
Road Traffic ◽  
Road Accident ◽  
Process Safety ◽  
Driving Experience ◽  
The Road ◽  
Human Driver ◽  
Proper Estimation ◽  
The Impact

Abstract Road traffic is inseparably connected with road accident. This is the human-driver whose role in the transportation process safety is of key importance. Driving a motor vehicle requires from the driver not only knowledge but also physical and psychical fitness. They need to have the ability of quick reaction, proper estimation of the road situation and doing maneuvers adequate to it. In this study, an assessment of the impact of improper behaviors of drivers on occurrence of road collisions and accidents, has been analyzed on the basis of literature analysis and the authors’ own research. In effect of the carried out tests there has been made a classification of the road events with a division into: cause, place, date, and time of their occurrence as well as drivers’ age and their driving experience. The whole study has been performed on the basis of a real transportation company, operating on the territory of an urban agglomeration with the population of 500 inhabitants.

scholarly journals Sustainable Markets: Case Study Of Toyota Motor Sales, U.S.A., Inc.

2011 ◽  
Vol 7 (3) ◽  
pp. 63 ◽  
Author(s):  
Dean R. Manna ◽  
Gayle Marco ◽  
Brittany Lynn Khalil ◽  
Sara Meier
Keyword(s):  
Main Idea ◽  
Passenger Cars ◽  
The Road ◽  
The World ◽  
Sustainable Marketing ◽  
Private And Public ◽  
On The Road ◽  
Definition Of ◽  
The Impact

The traditional definition of sustainability calls for policies and strategies that meet societys present needs without compromising the ability of future generations to meet their own needs (1). Sustainability is a concern in private and public sectors all over the world; it is an issue that resonates with people in all age ranges, income levels, and geographic locations. The main idea of sustainability is reduce, reuse, and recycle. People and organizations alike must consider every possible effect from the decisions they make in regards to the environment. With over 600,000,000 passenger cars on the road in the world, and over 50,000,000 passenger cars built each year, it is imperative that automakers make sustainable decisions (2). It is not just the large number of vehicles in the world that is cause for concern, but the immense amount of resources needed to manufacture, transport, and fuel them. Automakers must consider the impact that each car has during every stage of its life cycle, in addition to their responsibility to society (in terms of the environment, education, and safety) and the impact of their suppliers. This case study is designed to discuss the background of Toyota and highlight the companys current actions in regard to sustainable marketing; a comparison will also be made to the sustainable efforts of Honda and Subaru.

The Impact of Instructional Simulation Use on Teaching and Learning

2011 ◽  
pp. 193-211
Author(s):  
Michael C. Johnson ◽  
Charles R. Graham ◽  
Su-Ling Hsueh
Keyword(s):  
Higher Education ◽  
Teaching And Learning ◽  
Learning Experiences ◽  
Student Perspectives ◽  
Computer Based ◽  
Authentic Engagement ◽  
The Impact ◽  
Instructional Simulation

As simulation usage becomes more prevalent in education, it is important to analyze how teaching and learning is impacted by its use. We present here a case study of a specific computer-based instructional simulation, the Virtual Audiometer, and instructor and student perspectives regarding the simulation use’s effects on teaching and learning. Specifically, findings are described within a model of five areas in which technology can effect education: visualization, authentic engagement, quality and quantity of practice and feedback, interaction and collaboration, and reflection. Although room for improvement was identified, data showed that in this specific case, the computer-based instructional simulation improved teaching and learning experiences in all five areas. An understanding of how simulations impact teaching and learning can help inform design of both the simulations produced for higher education and the implementation of these simulations within a course.

scholarly journals Using Mosses as Bioindicators of Potentially Toxic Element Contamination in Ecologically Valuable Areas Located in the Vicinity of a Road: A Case Study

2019 ◽  
Vol 16 (20) ◽  
pp. 3963 ◽  
Author(s):  
Maja Radziemska ◽  
Zbigniew Mazur ◽  
Agnieszka Bes ◽  
Grzegorz Majewski ◽  
Zygmunt M. Gusiatin ◽  
...  
Keyword(s):  
Natura 2000 ◽  
Straight Section ◽  
Road Transportation ◽  
Sharp Bend ◽  
The Road ◽  
The North ◽  
Wooded Area ◽  
National Road ◽  
The Impact

This study analyzed the impact of road transportation on the concentration of Zn, Ni, Pb, Co, and Cd in moss (Pleurozium schreberi). The study was carried out over five years near a national road running from the north to the east (Poland) in the area of Natura 2000 sites. Samples were collected at three significantly different locations: (1) near a sharp bend, (2) near a straight section of the road in a woodless area, and (3) in a slightly wooded area. At each location, moss samples were collected from sites situated 2, 4, 6, 8, 10, 12, and 14 m from the road edge. The highest Zn and Cd contents in the moss were recorded 6 m from the road edge near a sharp bend (where vehicles brake sharply and accelerate suddenly). At the same location, at a distance of 2 m, the highest Pb concentration was noted, and at a distance of 4 m from the road, the highest Ni concentration was noted. The Co concentration in the moss was the highest near the woodless straight section at a distance of 2 and 12 m from the road. The concentrations of Zn, Pb, Ni, Co (only at the woodless location), and Cd (at all locations) were significantly and negatively correlated with distance from the road.

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