scholarly journals THE HEAVY VECHICLES INTERACTION WITH ROAD PAVEMENT INFLUENCE TO CONSTRUCTION LAYERS ANALYZIS / SUNKIŲJŲ AUTOMOBILIŲ SĄVEIKOS SU KELIO DANGA IR JŲ ĮTAKOS KONSTRUKCIJOS SLUOKSNIAMS ANALIZĖ

2011 ◽  
Vol 3 (2) ◽  
pp. 103-109 ◽  
Author(s):  
Jurij Sokolov ◽  
Henrikas Sivilevičius
Keyword(s):  
Axial Load ◽  
Negative Influence ◽  
Movement Speed ◽  
Heavy Vehicle ◽  
Intensity Increase ◽  
Vehicle Traffic ◽  
The Road ◽  
Road Pavement ◽  
Pavement Construction ◽  
The Impact

Smoothness is the main feature of road exploitation. It particularly affects movement speed, safety and driving comfort. Evenness of the road belongs of three factors: strength of the pavement construction, heavy vehicle traffic and the impact of the axle mass over it’s term of exploitation. The main negative influence on Lithuanian roads has a overloaded heavy vehicle in excess of the permissible axle load limits. Static and dynamic vehicle weighing equipment and technologies were presented in the article. This article explores overloaded heavy vehicle damage done to Lithuanian roads and its intensity increase. Discuss the basic preventive techniques and methods to prevent the rapid wear of pavements. Also analysis of changes in axial load data through the 2009 August is done.

TO THE QUESTION OF THE IMPACT OF CLIMATE CHANGE ON THE ECOLOGICAL STATE OF ARTIFICIAL PLANTATIONS OF PITSUNDSKAYA PINE IN THE SEASIDE AREA OF GELENDZHIK

2017 ◽  
Author(s):  
Elizaveta Derevenets ◽  
Elizaveta Derevenets
Keyword(s):  
Negative Impact ◽  
Standard Technique ◽  
Negative Influence ◽  
Exhaust Gases ◽  
The Road ◽  
Industrial Enterprises ◽  
Federal Highway ◽  
On The Road ◽  
The Impact ◽  
The City

Gelendzhik is the resort town, there aren't a lot of industrial enterprises here. The main pollutant is transport. The work purpose is the assessment of a condition of the artificial landings of a pine located along the Federal highway "Don" and landings, which is nearly the sea coast. Researches were conducted to a standard technique of the General vital state (A. S. Bogolyubov). The assessment of a condition of pines was carried out during 6 years: from 2010 to 2015. For carrying out research we used 6 experimental grounds on the Markotkhsky spine and 2 control grounds within the town. We investigated 24 trees on each platform, middle age of the trees were 30 - 40 years. Results. 1. The condition of trees in the pine forests located in immediate proximity with the Federal highway "Don" (No. 1, 2, 3) is unsatisfactory. As even weak influences of the majority of atmospheric gaseous pollutants (sulphurous gas, nitrogen oxides, etc.) give effect of a necrosis and hloroz of pine needles, the condition of pines is connected with technogenic pollution. So near the Federal highway "Don" the air environment is strongly polluted by exhaust gases. Information of 2012 confirm that negative influence of the route on Markotkh's vegetation decreases at reduction of load of the route. 2. On the sites located above on a slope (No. 4,5,6) thanks to remoteness and the wind mode intensity of influence of pollutants is lower and a condition of pines the quite satisfactory. 3. Trees on the sites located near the sea (No. 7,8) are in a good shape. Small deterioration of a state is noted in very droughty years. Conclusion. Results of six years' research show that the condition of the plantings which are in close proximity with the road worsens. It is explained by increase in intensity of the movement on the road, especially during a resort season. Gelendzhik is the city with a good ecological shape, but the damage to environment is already caused. If not to take measures, we can lose a unique part of the nature in the future, recreate it will be impossible. Measures of reduction of negative impact of exhaust gases were offered. Results of researches are transferred to ecological department of the City administration of Gelendzhik.

TO THE QUESTION OF THE IMPACT OF CLIMATE CHANGE ON THE ECOLOGICAL STATE OF ARTIFICIAL PLANTATIONS OF PITSUNDSKAYA PINE IN THE SEASIDE AREA OF GELENDZHIK

2017 ◽  
Author(s):  
Elizaveta Derevenets ◽  
Elizaveta Derevenets
Keyword(s):  
Negative Impact ◽  
Standard Technique ◽  
Negative Influence ◽  
Exhaust Gases ◽  
The Road ◽  
Industrial Enterprises ◽  
Federal Highway ◽  
On The Road ◽  
The Impact ◽  
The City

Gelendzhik is the resort town, there aren't a lot of industrial enterprises here. The main pollutant is transport. The work purpose is the assessment of a condition of the artificial landings of a pine located along the Federal highway "Don" and landings, which is nearly the sea coast. Researches were conducted to a standard technique of the General vital state (A. S. Bogolyubov). The assessment of a condition of pines was carried out during 6 years: from 2010 to 2015. For carrying out research we used 6 experimental grounds on the Markotkhsky spine and 2 control grounds within the town. We investigated 24 trees on each platform, middle age of the trees were 30 - 40 years. Results. 1. The condition of trees in the pine forests located in immediate proximity with the Federal highway "Don" (No. 1, 2, 3) is unsatisfactory. As even weak influences of the majority of atmospheric gaseous pollutants (sulphurous gas, nitrogen oxides, etc.) give effect of a necrosis and hloroz of pine needles, the condition of pines is connected with technogenic pollution. So near the Federal highway "Don" the air environment is strongly polluted by exhaust gases. Information of 2012 confirm that negative influence of the route on Markotkh's vegetation decreases at reduction of load of the route. 2. On the sites located above on a slope (No. 4,5,6) thanks to remoteness and the wind mode intensity of influence of pollutants is lower and a condition of pines the quite satisfactory. 3. Trees on the sites located near the sea (No. 7,8) are in a good shape. Small deterioration of a state is noted in very droughty years. Conclusion. Results of six years' research show that the condition of the plantings which are in close proximity with the road worsens. It is explained by increase in intensity of the movement on the road, especially during a resort season. Gelendzhik is the city with a good ecological shape, but the damage to environment is already caused. If not to take measures, we can lose a unique part of the nature in the future, recreate it will be impossible. Measures of reduction of negative impact of exhaust gases were offered. Results of researches are transferred to ecological department of the City administration of Gelendzhik.

scholarly journals Assessment of Eco-Friendly Pavement Construction and Maintenance Using Multi-Recycled RAP Mixtures

Recycling ◽  
2020 ◽  
Vol 5 (3) ◽  
pp. 17
Author(s):  
David Vandewalle ◽  
Vítor Antunes ◽  
José Neves ◽  
Ana Cristina Freire
Keyword(s):  
Pavement Management ◽  
Reclaimed Asphalt Pavement ◽  
Reclaimed Asphalt ◽  
Sustainable Solutions ◽  
Average Decrease ◽  
Bituminous Mixtures ◽  
Road Pavement ◽  
Pavement Construction ◽  
The Impact ◽  
Lca Results

The demand for more sustainable solutions has led an ever-growing number of stakeholders to being committed to pursue the principles of sustainability in pavement management. Different stakeholders have been looking for tools and methodologies to evaluate the environmental impacts of the solutions, for which the life cycle assessment (LCA) proved to be an appropriate methodology. This paper is focused on the LCA of road pavement multi-recycling based on the use of bituminous mixtures with high rates of reclaimed asphalt pavement (RAP). In order to promote the circular economy, a comparative analysis was performed on a road pavement section by taking into account different scenarios, which stem from the combination of production, construction and rehabilitation activities incorporating different RAP rates in new bituminous mixtures: 0% (as reference), 25%, 50%, 75% and 100%, respectively. LCA results have been expressed in terms of four damage categories: human health, ecosystem quality, climate change and resources. Results have shown that both recycled and multi-recycled bituminous mixtures lead to substantial benefits in comparison with the solution employing virgin materials, hence embodying a sustainable approach. The benefits grow with the increase in the RAP rate with an average decrease of 19%, 23%, 31% and 33% in all the impact categories for a 25%, 50%, 75% and 100% of RAP rate.

scholarly journals The Impact of Road Maintenance Substances on Metals Surface Corrosion

2011 ◽  
Vol 1 (4) ◽  
pp. 92-96
Author(s):  
Jolita Petkuvienė ◽  
Dainius Paliulis
Keyword(s):  
Water Resources ◽  
Metal Surface ◽  
Road Maintenance ◽  
Metallic Elements ◽  
The Road ◽  
Surface Corrosion ◽  
Road Pavement ◽  
Deicing Salts ◽  
The Impact ◽  
Soil And Water

The purpose of research is to assess changes in the visual metal surface due to the exposure of road maintenance salts and molasses (‘Safecote’). Chlorides of deicing salts (NaCl, CaCl2) are the main agents affecting soil and water resources as well as causing the corrosion of roadside metallic elements. Molasses (‘Safecote’) is offered as an alternative to deice road pavement by minimizing the corrosion of metal elements near the road. A laboratory experiment was carried out to immerse and spray metals with NaCl, CaCl2, NaCl:CaCl2 and NaCl:Safecote solutions. The obtained results showed that NaCl:Safecote solution had the lowest coating with corrosion products (the average 17±4 % of the surface). The solutions of NaCl, CaCl2 and NaCl:CaCl2 had the highest percentage rate of the corrosion product on the metal surface reaching an average of 33±5 %.

scholarly journals Influence of climatic conditions on the occurrence of wheel track deformation on asphalt paved roads

2021 ◽  
Vol 264 ◽  
pp. 02028
Author(s):  
Iroda Saidakberova ◽  
Sirojiddin Yadgarov ◽  
Bobomurod Qurbonov ◽  
Zulfiya Pulatova
Keyword(s):  
Climatic Factors ◽  
Climatic Conditions ◽  
Dynamic Force ◽  
The Road ◽  
Transverse Dynamic ◽  
Road Pavement ◽  
The Impact ◽  
Track Deformation ◽  
Wheel Track ◽  
Repeated Loads

When the car moves, a vertical, longitudinal and transverse dynamic force is generated, where there is a link between the road cover and the wheel. Repeated loads from vehicles and the impact of climatic factors lead to deformation in the pavement and pavement of the road. In deformation and deformation, the geometric dimensions and durability of the road pavement are lost. Disturbances-loss of dimensions and loss of durability of parts of the construction is understood. In practice, all types of deformation and distortion are often regarded as a drawback of road conditions [1].

scholarly journals Porous asphalt pavement for traffic noise reduction and pavement dewatering – the pollution problem

2018 ◽  
Vol 45 ◽  
pp. 00114
Author(s):  
Lesław Bichajło ◽  
Krzysztof Kołodziej
Keyword(s):  
Asphalt Pavement ◽  
Traffic Noise ◽  
Asphalt Mixture ◽  
Porous Asphalt ◽  
The Road ◽  
Road Pavement ◽  
Pollution Problem ◽  
Pavement Construction ◽  
Air Void ◽  
The City

The paper characterizes the porous asphalt mixture used in pavement construction. This kind of pavement can reduce traffic noise and reduce the slipperiness of the road pavement. The effectiveness of the porous asphalt depends on many design and technological aspects, but especially on the air-void clearance in the pavement layer. The paper includes the results of water permeability research based on laboratory tests of specimens from actual road pavement. The research shows the differences between the contamination of the road pavement sections located inside and outside the city. The paper includes recommendations for using porous asphalt based on experiences under Polish conditions.

scholarly journals The equipment for determining the impact of traffic environment on road pavement

2019 ◽  
Vol 13 (2) ◽  
pp. 149-153
Author(s):  
Iryna Solonenko
Keyword(s):  
Sample Type ◽  
The Road ◽  
Road Pavement ◽  
Operational Characteristics ◽  
Traffic Environment ◽  
Equipment Type ◽  
Element Number ◽  
On The Road ◽  
The Impact

The article presents the classification of equipment developed by the author for the research of the operational characteristics of road pavement. The equipment was classified according to the following criteria: type of equipment; type of contact element; mode of interaction with the supporting surface; type of fixture of the suspension element; number of contact elements; sample type; type of load. For illustrations, the classification of the most common equipment was carried out. The research was conducted to compare and select the most rational equipment to study the effect of traffic environment on the road pavement. The research was carried out by the multi-criteria analysis. Based on the conducted research, the most rational installations for conducting experiments were determined.

scholarly journals The Impact of the Pandemic on Vehicle Traffic and Roadside Environmental Pollution: Rzeszow City as a Case Study

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4299
Author(s):  
Miroslaw Smieszek ◽  
Vasyl Mateichyk ◽  
Magdalena Dobrzanska ◽  
Pawel Dobrzanski ◽  
Ganna Weigang
Keyword(s):  
Air Pollution ◽  
Environmental Pollution ◽  
Traffic Flow ◽  
Traffic Volume ◽  
Motor Vehicles ◽  
Vehicle Traffic ◽  
The Road ◽  
The Impact ◽  
The City ◽  
Roadside Environment

The development of the COVID-19 pandemic and the related lockdown had a major impact on vehicle traffic in cities. Based on available data from the selected city of Rzeszow, Poland, it was decided to assess changes in vehicle traffic and the impact of these changes on roadside environmental pollution. As part of the research, data from the first half of 2020 regarding vehicle traffic on selected streets of the city and on the city’s inlet routes were analyzed. For the selected road sections, changes in hourly traffic volume in 2020, compared with 2019, were also determined. With data on traffic volume, an attempt was made to estimate the impact of changes in traffic volume on air pollution in the city. Research on air pollution from motor vehicles was focused on a selected section of a city road that was equipped with an automatic air pollution measurement station located very close to the road. Additionally, at the road intersection and in the vicinity of the measuring station, a sensor was installed in the roadway to count passing vehicles. A preliminary analysis of air pollution data revealed that factors such as wind speed and direction and outside temperature had a large impact on measurement results. To eliminate the influence of these factors and to obtain data concerning only contamination originating from motor vehicles traveling along the road, an appropriate mathematical model of the traffic flow–roadside environment system was built. This model was designed to determine the air pollution in the vicinity of the road generated by traffic flow. The constructed model was verified, and the conditions for its use were determined in order to study the impact of traffic and roadside environment on the level of air pollution from harmful exhaust substances. It was shown that at certain times of the day, especially at low temperatures, other sources of harmful emissions related to home heating play a major role in air pollution in the city.

scholarly journals Sensitivity Analysis of Determining the Material Parameters of an Asphalt Pavement to Measurement Errors in Backcalculations

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 873
Author(s):  
Paweł Tutka ◽  
Roman Nagórski ◽  
Magdalena Złotowska ◽  
Marek Rudnicki
Keyword(s):  
Fatigue Life ◽  
Measurement Errors ◽  
Pavement Condition ◽  
Material Parameters ◽  
The Road ◽  
Nondestructive Tests ◽  
Road Pavement ◽  
Falling Weight ◽  
Pavement Reinforcement ◽  
The Impact

Nondestructive tests of road pavements are among the most widely used methods of pavement condition diagnostics. Deflections of road pavement under a known load are most commonly measured in such tests, e.g., with the use of falling weight deflectometer (FWD). Measured values allow to determine the material parameters of the road structure, corresponding to the obtained results, by means of backcalculations. Among the factors that impact on the quality of results is the accuracy of deflection measurement. Deflection basins with small differences of displacement values may correspond to significantly different combinations of material parameters. Taking advantage of them for mechanistic calculations of road pavement may eventually lead to incorrect estimation of the remaining fatigue life and then inadequate selection of pavement reinforcement. This study investigated the impact of measurement errors on the change of the obtained values of stiffness moduli of flexible road pavement layers. Additionally, the influence of obtained material parameters on the values of key pavement strain, and consequently on its design fatigue life was presented.

scholarly journals Impact of noise barriers on the dispersal of solid pollutants from car emissions and their deposition in soil

2017 ◽  
Vol 68 (1) ◽  
pp. 19-26 ◽  
Author(s):  
Małgorzata Wawer ◽  
Marzena Rachwał ◽  
Joanna Kowalska
Keyword(s):  
Trace Elements ◽  
Magnetic Susceptibility ◽  
Negative Influence ◽  
Soil Samples ◽  
Noise Barriers ◽  
The Road ◽  
Pollution Levels ◽  
Soil Enrichment ◽  
Steel Panels ◽  
The Impact

Abstract Despite the existence of various methods aimed at protecting the environment from the negative influence of roads, there is a lack of adequate techniques for monitoring and reducing the spread of roadside pollution into the air and soils. The aim of this study was to assess the impact of noise barriers (sound walls) on the dispersal and soil deposition of solid pollutants from car emissions, based on both quantitative and qualitative analysis. Magnetic susceptibility measurements, trace elements analyses, and platinum (Pt) and rhodium (Rh) content determinations were performed on soil samples collected in the vicinity of various types of noise barrier. Previous investigations have shown that most traffic emissions are deposited in the close vicinity of roads (up to 10 m), with pollution levels decreasing with increasing distance from the road edge. However, the results of the present study indicate that this distribution is disturbed in areas in which noise barriers are located. Moreover, additional soil enrichment with trace elements was observed at approx. 10-15 m behind the barriers. The spatial distribution of trace elements contents in the tested soil samples corresponded to the magnetic susceptibility values. High Fe, Zn, Mn and Pb levels were observed adjacent to noise barriers composed of sawdust concrete and steel panels.

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