scholarly journals Analyses and research of needs and possibilities of protection against noise in surrounding of provincial roads in Silesian Voivodship

2016 ◽  
Vol 15 (1) ◽  
pp. 259-268
Author(s):  
Zbigniew Tabor ◽  
Janusz Bohatkiewicz
Keyword(s):  
Large Volume ◽  
Road Traffic ◽  
Road Surface ◽  
Limited Availability ◽  
The Road ◽  
University Of Technology ◽  
Road Surfaces ◽  
Noise Impacts ◽  
Surface Improvement ◽  
Selection Of

One of the tasks of provincial road administration authorities is roadmaintenance ensuring that the noise impacts coming from road traffic are restricted to thelimit values. Due to the large volume of traffic, limited availability of space and limitedresources, this task is practically impossible to perform. Nowadays, the primary objectiveof the reconstruction of provincial roads is the road surface improvement. In many places itrequires large financial expenses. For several years, some provincial roads authorities havetaken first attempts to combine the needs of resurfacing with acoustic protection by usingnoise reducing road surfaces. Provincial Roads Authority in Katowice took action in thisarea using existing national and foreign experiences associated with the use of noise reducingsurfaces. These activities focused mainly on the selection of types of road surfaces thatwould be used on the provincial roads of Silesian Voivodship and criteria that indicated theorder in which road sections would be rebuild – systematic pavement replacement is needed.Prioritization of the activities and selection of the road sections planned for the reconstructionor renovation were obtained by taking into account several criteria: the results ofthe noise control plans, condition of the existing pavements, interventions of the inhabitantsand investment plans which included the needs of the development of the road network.The article presents the results of the analysis and research on the usage of noise reducingsurfaces and the selection of priority sections of provincial roads of Silesian Voivodshipplanned to be rebuild.The article present a joint result of the cooperation between Provincial Roads Authorityin Katowice and the Department of Roads and Bridges (Lublin University of Technology).

Tire-Road Interactions — Harmony or Conflict?

1989 ◽  
Vol 17 (1) ◽  
pp. 66-84
Author(s):  
A. R. Williams
Keyword(s):  
Rolling Resistance ◽  
Major Effect ◽  
Road Surface ◽  
Interactive Effects ◽  
Central Theme ◽  
Water Drainage ◽  
The Road ◽  
Truck Tires ◽  
Road Surfaces ◽  
Tire Wear

Abstract This is a summary of work by the author and his colleagues, as well as by others reported in the literature, that demonstrate a need for considering a vehicle, its tires, and the road surface as a system. The central theme is interaction at the footprint, especially that of truck tires. Individual and interactive effects of road and tires are considered under the major topics of road aggregate (macroscopic and microscopic properties), development of a novel road surface, safety, noise, rolling resistance, riding comfort, water drainage by both road and tire, development of tire tread compounds and a proving ground, and influence of tire wear on wet traction. A general conclusion is that road surfaces have both the major effect and the greater potential for improvement.

scholarly journals Laboratory experiment on the nano-TiO2 photocatalytic degradation effect of road surface oil pollution

2020 ◽  
Vol 9 (1) ◽  
pp. 922-933
Author(s):  
Qing’e Wang ◽  
Kai Zheng ◽  
Huanan Yu ◽  
Luwei Zhao ◽  
Xuan Zhu ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Oil Pollution ◽  
Road Surface ◽  
Test Method ◽  
Driving Safety ◽  
The Road ◽  
Road Surfaces ◽  
The Many ◽  
The Impact ◽  
Degradation Effect

AbstractOil leak from vehicles is one of the most common pollution types of the road. The spilled oil could be retained on the surface and spread in the air voids of the road, which results in a decrease in the friction coefficient of the road, affects driving safety, and causes damage to pavement materials over time. Photocatalytic degradation through nano-TiO2 is a safe, long-lasting, and sustainable technology among the many methods for treating oil contamination on road surfaces. In this study, the nano-TiO2 photocatalytic degradation effect of road surface oil pollution was evaluated through the lab experiment. First, a glass dish was used as a substrate to determine the basic working condition of the test; then, a test method considering the impact of different oil erosion degrees was proposed to eliminate the effect of oil erosion on asphalt pavement and leakage on cement pavement, which led to the development of a lab test method for the nano-TiO2 photocatalytic degradation effect of oil pollution on different road surfaces.

scholarly journals Applying the METRo model for road-condition forecasting in Norway 

2021 ◽  
Author(s):  
Stephanie Mayer ◽  
Fabio Andrade ◽  
Torge Lorenz ◽  
Luciano de Lima ◽  
Anthony Hovenburg ◽  
...  
Keyword(s):  
Surface Temperature ◽  
Heat Dissipation ◽  
Road Traffic ◽  
Weather Forecast ◽  
Road Surface ◽  
Balance Model ◽  
Weather Station ◽  
The Road ◽  
Road Surface Temperature ◽  
Road Condition

<p>According to the 14<sup>th</sup> Annual Road Safety Performance Index Report by the European Transport Safety Council, annually more than 100,000 accidents occur on European roads, of which 22,660 people lost their lives in 2019. The factors contributing to road traffic accidents are commonly grouped into three categories: environment, vehicle or driver. The European accident research and safety report 2013 by Volvo states in about 30% of accidents contributing factors could be attributed to weather and environment leading for example to unexpected changes in road friction, such as black ice. In this work, we are developing a solution to forecast road conditions in Norway by applying the <em>Model of the Environment and Temperature of Roads – METRo</em>, which is a surface energy balance model to predict the road surface temperature. In addition, METRo includes modules for water accumulation at the surface (liquid and frozen) and vertical heat dissipation (Crevier and Delage, 2001). The road condition is forecasted for a given pair of latitude, longitude and desired forecast time. Data from the closest road weather station and postprocessed weather forecast are used to initialize METRo and provide boundary conditions to the road weather forecast. The weather forecasts are obtained from the THREDDS service and the road weather station data from the FROST service, both provided by MET Norway. We develop algorithms to obtain the data from these services, process them to match the METRo model input requirements and send them to METRo’s pre-processing algorithms, which combine observations and forecast data to initialize the model. In a case study, we will compare short-term METRo forecasts with observations obtained by road weather stations and with observations retrieved by car-mounted environmental sensors (e.g., road surface temperature). This work is part of the project <em>AutonoWeather - Enabling autonomous driving in winter conditions through optimized road weather interpretation and forecast</em> financed by the Research Council of Norway in 2020. </p>

scholarly journals An analysis of road pavement collapses and traffic safety hazards resulting from leaky sewers

2016 ◽  
Vol 11 (4) ◽  
pp. 251-258 ◽  
Author(s):  
Emilia Kuliczkowska
Keyword(s):  
Traffic Safety ◽  
Road Traffic ◽  
Safety Hazards ◽  
Sewer Pipes ◽  
The Road ◽  
Road Traffic Safety ◽  
Road Pavement ◽  
Linear Defects ◽  
University Of Technology ◽  
Pavement Damage

In this paper, road pavement collapses resulting from sewer leakage are divided into six categories: negligible, marginal, considerable, serious, very serious and catastrophic, with the categorization being based on two criteria, both related to traffic safety, i.e., the number of fatalities caused by sinkholes, and the extent of the road pavement damage. The causes of road pavement collapses are also discussed. The study involved analyzing the deterioration of sewer pipes with long service lives, focusing on the most common materials, i.e., concrete and vitrified clay. The results of the sewer inspections performed by the Kielce University of Technology suggest that the spot and linear defects detected in sewers of this type can be divided into three groups. The findings were used to formulate some recommendations on how to improve road traffic safety by preventing road pavement collapses.

scholarly journals ANALISIS TINGKAT KEAUSAN TERHADAP PEMAKAIAN BAN MEREK A, B DAN C MENGGUNAKAN BAN STANDAR 90/90-14 46 P

2021 ◽  
Vol 8 (1) ◽  
pp. 282-288
Author(s):  
Afdan Ufriandi
Keyword(s):  
Wear Rate ◽  
Direct Contact ◽  
Road Surface ◽  
Total Load ◽  
The Road ◽  
Selection Of

The tire is the part of the motorbike that is in direct contact with the road surface. Selection of the correct tires, greatly determines the safety of riders from the dangers of slides on certain roads. In this research, the author aims to determine the wear rate of standard tires for Products A, B and C 90 / 90-14 M / C 46P when traveling, to prevent damage or wear of tires. In the comparison of Speeds 3,000 rpm, 3500 rpm and 4000 rpm with total load 223 Kg, 233 Kg and 243 Kg, with 1 hour in 3 times of testing. The erosion that occurs in the new tire A is 192 grams with 8.14% erosion and 7588 km / hour in tire mileage. Meanwhile, the new B tires are 182 grams, 5.71% scraping and 10,568 km / hr of the tire mileage. While the new C tire is 188 grams, 5.54% erosion and 11384 km / hour tire mileage.

scholarly journals Studi komparasi traffic island Ciung Wanara di Gianyar dengan traffic island Satrya Gatotkaca di Tuban

2019 ◽  
pp. 27
Author(s):  
I Komang Priyanata ◽  
Cokorda Gede Alit Semarajaya ◽  
Ni Wayan Febriana Utami
Keyword(s):  
Comparative Study ◽  
Field Survey ◽  
Road Traffic ◽  
The Road ◽  
Interview Research ◽  
Large Size ◽  
The Right ◽  
Lower Plants ◽  
Selection Of

Comparative study of Ciung Wanara traffic island in Gianyar with Satrya Gatotkaca traffic island In Tuban. Traffic island is an island in the middle of the road that serves to direct the flow of traffic and a waiting place for the user to cross the road. Traffic island of Ciung Wanara in Gianyar and Traffic island of Satrya Gatotkaca in Tuban had turned their function of being a place of recreation for the community. The purpose of this study is to invent existing condition of Ciung Wanara and Satrya Gatotkaca traffic island. This study also provides recommendations in the form of designs that can improve the function of the site. The method used in this research was field survey by conducting observation, distributing questioner and doing interview. Research showed that, users in Ciung Wanara traffic island were dominated by student while users who came to the traffic island Satrya Gatotkaca were dominated by employees. The selection of vegetation bettwen the traffic island of Ciung Wanara and traffic island of Satrya Gatotkaca very different. Vegetation in the traffic island of Ciung Wanara used more of large size vegetation that can block the view of the user of the vehicle, while the vegetation used in the traffic island of Satrya Gatotkaca use lower plants size. The recommendation given in both locations was to add access to traffic island of Ciung Wanara so as to make easier for users to find the right place to cross, while traffic island of Satrya Gatotkaca was arraged it crossing space for more convenient and secure for users to passed the crosswalk.

A new procedure for determining the road surface reduced luminance coefficient table by on-site measurements

2018 ◽  
Vol 51 (1) ◽  
pp. 65-81 ◽  
Author(s):  
N Strbac-Hadzibegovic ◽  
S Strbac-Savic ◽  
M Kostic
Keyword(s):  
Road Surface ◽  
Surface Reflection ◽  
The Road ◽  
Road Lighting ◽  
Average Luminance ◽  
Road Surfaces ◽  
Q Values

Numerous measurements have shown that the standard R classes do not represent adequately many road surfaces used nowadays. Therefore, the construction of portable reflectometers intended for on-site measurements of road surface reflection properties has been given particular attention during the last decade. This paper presents a new procedure for the improvement of the accuracy of such a portable reflectometer. Optimally extrapolating the values of the 20 luminance coefficients (q), each measured by the portable reflectometer for a set of angles of observation (α = 5°–80°), the 20 q-values referring to α = 1° are calculated. This enables their comparison with the corresponding q elements from each of the 447 reduced q-tables derived from the available r-table database, obtained by using a precise laboratory reflectometer on a wide variety of road samples. Selecting the closest reduced q-table, the corresponding r-table and the actual average luminance coefficient can be determined. In order to validate the proposed procedure, which can also be applied to other similar portable reflectometers, measurements of the luminance and overall and longitudinal luminance uniformities were carried out on eleven road-lighting installations. They showed that the results obtained by this procedure deviate only slightly from those obtained using r-tables determined by the laboratory reflectometer.

scholarly journals Mobile Laser Scanning Data for the Evaluation of Pavement Surface Distress

2020 ◽  
Vol 12 (6) ◽  
pp. 942 ◽  
Author(s):  
Maria Rosaria De Blasiis ◽  
Alessandro Di Benedetto ◽  
Margherita Fiani
Keyword(s):  
Point Cloud ◽  
Laser Scanning ◽  
Road Traffic ◽  
Single Point ◽  
Three Dimensional ◽  
Point Clouds ◽  
Road Surface ◽  
Important Indicator ◽  
The Road ◽  
Laser Systems

The surface conditions of road pavements, including the occurrence and severity of distresses present on the surface, are an important indicator of pavement performance. Periodic monitoring and condition assessment is an essential requirement for the safety of vehicles moving on that road and the wellbeing of people. The traditional characterization of the different types of distress often involves complex activities, sometimes inefficient and risky, as they interfere with road traffic. The mobile laser systems (MLS) are now widely used to acquire detailed information about the road surface in terms of a three-dimensional point cloud. Despite its increasing use, there are still no standards for the acquisition and processing of the data collected. The aim of our work was to develop a procedure for processing the data acquired by MLS, in order to identify the localized degradations that mostly affect safety. We have studied the data flow and implemented several processing algorithms to identify and quantify a few types of distresses, namely potholes and swells/shoves, starting from very dense point clouds. We have implemented data processing in four steps: (i) editing of the point cloud to extract only the points belonging to the road surface, (ii) determination of the road roughness as deviation in height of every single point of the cloud with respect to the modeled road surface, (iii) segmentation of the distress (iv) computation of the main geometric parameters of the distress in order to classify it by severity levels. The results obtained by the proposed methodology are promising. The procedures implemented have made it possible to correctly segmented and identify the types of distress to be analyzed, in accordance with the on-site inspections. The tests carried out have shown that the choice of the values of some parameters to give as input to the software is not trivial: the choice of some of them is based on considerations related to the nature of the data, for others, it derives from the distress to be segmented. Due to the different possible configurations of the various distresses it is better to choose these parameters according to the boundary conditions and not to impose default values. The test involved a 100-m long urban road segment, the surface of which was measured with an MLS installed on a vehicle that traveled the road at 10 km/h.

Observations on the Physical Aspects of Resistance to Skidding on Dry Roads and Particularly on Wet Roads

1956 ◽  
Vol 29 (4) ◽  
pp. 1425-1433 ◽  
Author(s):  
K. Knauerhase
Keyword(s):  
Great Influence ◽  
Boundary Surface ◽  
Road Surface ◽  
Motor Vehicles ◽  
Vector Diagram ◽  
Surface Adhesion ◽  
The Road ◽  
Wet Friction ◽  
Road Surfaces ◽  
Wetting Power

Abstract To ensure safety from skidding, attention has up to now been devoted to building rough surface roads, to the development of the proper vehicle construction with respect to this feature, and to the factor most directly involved, the tires. Special attention has been directed in connection with this latter phase to a much more open tread patterning and to the effect of decreasing tire inflation, both of which affect the life of the tire adversely. These steps neglected to take advantage of the physical effect of adhesion, which, without lowering the durability, now makes possible an enhanced contribution to the cohesive friction by the profile grooves which are of necessity retained to keep the weight down. The goal is, therefore, to provide the smooth surfaces of the tread pattern that come in contact with the road with the greatest possible physical gripping power, or adhesion. After illustrating the interfacial magnitudes with the help of a vector diagram, we shall survey the laws of boundary surface adhesion. Here the great influence of the liquid involved in wet friction becomes clear and the particularly favorable interfacial tension property of water can be assessed. Since skidding can occur only at the interfaces : rubber-water, or water-road, the requirement is as follows : both the greatest possible wetting power between rubber and water, and also between water and road surface, that is, hydrophilic properties in the rubber and hydrophilic road surfaces, in order to reduce the danger of skidding. Good insurance against skidding requires hydrophilic rubber and a hydrophilic road surface, for a tire that has been developed to be nonskidding holds on a hydrophilic road surface and skids on a hydrophobic road surface. A hydrophobic tire, on the other hand, skids on any wet road. Although considerable advances have been made with respect to safety from skidding since rubber tires were first developed for motor vehicles, with increase of speeds this problem demands our attention to a greater and greater degree. Safety from skidding can result only from the combined efforts of road and car builders, tire makers, and the chemists and physicists of all three groups.

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