Influence of pavement surface macrotexture on pavement skid resistance (original) (raw)
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Investigation of pavement skid resistance and macrotexture on a long-term basis
International Journal of Pavement Engineering, 2020
Road safety is connected with pavement skid resistance which often triggers pavement maintenance issues. So far, many laboratory studies have been conducted trying to find a link between skid resistance and macrotexture. However, the findings cannot be extrapolated always in the field because of the multi-parametric nature of skid resistance. This triggered the present study that aims to identify key aspects of skid resistance and its main textural components, macro and microtexture. The goal is twofold: to present and assess the effect of seasonal variation on a long-term basis focusing mainly on Mediterranean climate zone and illustrate the cumulative traffic effect on skid resistance and macrotexture in the field, while paying attention to the key-role of microtexture. Study findings showed that under the effect of cumulative traffic, macrotexture and skid resistance start presenting an inverse trend. This trend seems to be related to the equilibrium phase of skid resistance performance, after which seasonal variation becomes less pronounced. In addition, the cumulative traffic in conjunction with weather variations are proved to be critical for the microtexture component. Ultimately, the study findings demonstrated the necessary awareness of constraints in using only macrotexture data to develop models for predicting field skid resistance levels.
Effect of Pavement Surface Characteristics on Skid Resistance
IRJET, 2022
A crucial component of highway safety is skid resistance, which is a result of the frictional force produced at the interface between the tyre and the road surface. Surface texture is one of the many aspects of a pavement's skid resistance that engineers may control. Microtexture of the pavement surface is a result of aggregate asperities, whereas macrotexture is a result of aggregate placement and inclination at the pavement surface. Macrotexture is often assessed using a variety of volumetric and optical methods, with the findings represented as texture or profile depths. Numerous research revealed that the pavement's macrotexture and the aggregate's polished stone value had an impact on skid resistance. The macrotexture values in terms of mean texture depth and skid resistance values in terms of british pendulum number have been computed in this study using the sand patch test and the British pendulum tester respectively. IFI parameters were then calculated using the MTD and BPN values. Finally, a number of findings on the impact of macro- and microtexture on skid resistance have been presented
Impact of Traffic Volume on Pavement Macrotexture and Skid Resistance Long-Term Performance
Transportation Research Record: Journal of the Transportation Research Board, 2019
Pavement skid resistance is influenced by both pavement macrotexture and microtexture, with the two components providing the skid resistance properties required to assist in ensuring road safety. In addition to these factors the cumulative traffic along a pavement is a known determinant factor influencing pavement surface characteristics leading to deterioration. However, previous research efforts in this area have been evaluated based on laboratory experiments that have not proven to be easily extrapolated to represent field conditions. With this in mind, the present study aims to investigate and comprehend the long-term effect of cumulative traffic on both skid resistance and macrotexture evolution based on actual field measurements. The ultimate research goal is to develop a practical approach for analysis and interpretation of in-situ performance characteristics that could be utilized by road agencies in evaluating long-term skid resistance performance. For the investigation, an...
Civil engineering infrastructures journal, 2021
Road accidents are one of the ten major causes of death in the world. Lack of enough friction and skid resistance of the pavement surface are known as important factors in traffic accidents. In this study, to evaluate the relationship between skid resistance and pavement surface macrotexture, five methods of creating macrotexture on concrete pavements were used. Sand Patch test, British Pendulum and Wide Wheel Abrasion tests were employed to obtain mean texture depth, skid resistance and abrasion resistance of the surface, respectively. Results showed that brushing on fresh concrete surface (parallel or perpendicular to the traffic direction) can improve frictional properties of pavement surface, drastically. This method increased British Pendulum Number (BPN) and friction coefficient by 32% and 38% (in average), respectively. Friction coefficient of parallel brushing was quite similar to perpendicular (0.2% discrepancy), while its abrasion resistance was 4% higher. Hence, as a find...
Development of correlation equations between different measurements of skid resistance in pavements
2006
Friction is an indicator of the safety level supplied by a pavement. It is obtained by skid resistance and texture measures performed with static and high performance devices. Because the physical principle applied by each equipment differs from one another, it is necessary to harmonize measures in order to compare them. From literature review different harmonization procedures are identified: equipment direct correlations, high scale harmonization experiments and statistical analysis of skid resistance measures. Harmonization based on direct correlations and statistical analysis has the disadvantage that they do not consider texture as a variable, making them applicable only under certain conditions. In this paper, a harmonization methodology is proposed based on the PIARC (the World Road Association) harmonization procedure. The proposed methodology has the advantage that a reduced amount of data is needed and also texture measures are considered. From the application of the methodology under data simulation it is concluded that under a certain texture range the correlation is almost linear. This range depends on the texture measurement device; as, when using accurate equipments non-linear distortions are deduced under low texture levels.
Asphalt pavements surface texture and skid resistance — exploring the reality
Canadian Journal of Civil Engineering, 2012
Wet pavement skidding due to inadequate surface texture or friction contributes to 20% to 35% of all wet weather crashes. Many of the past studies of pavement surface texture and friction have deficiency in selecting the model forms or variables and interpreting the models and (or) the findings or have recommended further investigation. These pose a challenge for the highway agencies in selecting the appropriate surface layer and (or) measuring tools. This study was undertaken to re-examine some of the pavement surface texture and skid resistance related issues and aid the highway agencies in this area. Pavement surface texture and skid resistance aspects were carefully examined using the data collected from nine asphalt concrete (AC) surfaces. Pavement surface texture was measured using the sand patch method and a high speed texture laser. Skid resistance was measured using a British Pendulum and a skid trailer. The analysis has reinstated that aggregate quality is the predominant factor for AC surface skid resistance. Both texture depth and ribbed tire skid resistance was shown to increase with an increase in coarse aggregate (CA) content proving their interdependency. Neither the voids in mineral aggregate (VMA) or air voids (AV) contents showed a meaningful or statistically significant correlation with the surface texture or skid resistance. Fairly good correlations were found among the British Pendulum number (BPN), ribbed tire skid number (SN) and mean texture depth (MTD) rejecting the hypothesis that BPN is a measure of only surface microtexture and ribbed tire skid number is insensitive to surface texture.
Pavement Surface Macrotexture Measurement and Applications
optimized, especially for the wearing surface mixes. Construction specifications for smoothness have been implemented by several states (1, 2). HMA safety-related texture and skid properties are not yet quantitatively included in most specifications. Since surface macrotexture can be measured quite efficiently using noncontact technologies and since it provides important information regarding pavement safety and HMA construction quality (uniformity), this parameter could be efficiently included in the quality control procedures.
Threshold value of skid resistance and texture depth for Malaysia road
IOP Conference Series: Materials Science and Engineering
Skid resistance is an important pavement characteristic for roads, which determines the friction between the road surface and vehicle tyres. The level of friction is largely influenced by the pavement surface aggregates micro texture, macro texture, and drainage attributes. The objective of this paper is to present the findings of the research and analysis conducted on Skid Resistance Value (SRV), Mean Texture Depth (MTD) and Skid Number (SN) obtained from the data collected on federal roads over the years since 2008. This research also attempted to determine the appropriate limiting values for SRV (microtexture), MTD (macrotexture) and SN for the federal roads. The result of analysis indicated that the average value of SRV at the locations of wet surface accident is 52.31 + 8.54. While for MTD, the accident risk is higher when MTD value is below the average of 0.45 + 0.025. The SRV and MTD results were correlated to each other and it can be concluded that accident risk increases significantly when SN value is below the average value of 31.49 + 7.87. Based on these findings, it is concluded that the minimum desirable values for SRV and SN for Malaysia's Federal roads to be 55 and 30 respectively.
Correlating Laboratory Test Methodologies to Measure Skid Resistance of Pavement Surfaces
Transportation Research Record: Journal of the Transportation Research Board, 2015
The skid resistance performance of surface aggregates can be assessed in the laboratory with a polishing device that is designed to simulate traffic polishing actions, coupled with a skid resistance measuring device. The standard laboratory test has historically been the polished stone value (PSV) test, as specified in British Standard EN 1097-8:2009. However, as the technology has advanced and traffic volume and composition on the roads have changed, other devices and methodologies have been developed in an attempt to provide better assessment of the skid resistance performance of surface aggregates. This study compared two alternative laboratory tests, the Auckland pavement polishing device (APPD) and the Wehner–Schulze (WS) devices, in assessing the skid resistance performance of three New Zealand greywacke aggregates. This paper discusses the variations in APPD and its corresponding skid resistance measuring device, the dynamic friction tester (DFT) and the effect of macrotextur...
Pavement Friction and Skid Resistance Measurement Methods: A Literature Review
Open Journal of Civil Engineering, 2016
Driving safety is of significance in the automobile industry and transportation systems. Pavement skid resistance has long been recognized as the most important parameter in reducing traffic accidents especially in wet conditions. The knowledge of the friction coefficient and skid resistance is very valuable information for safety enhancement of roads. Thus, it is important to find proper methods for measuring skid resistance and frictional properties of the pavement surface. There is a wide range of measurement methods and devices for measuring skid resistance. This paper presents a review on the research studies that have been done on characterization of the frictional properties of the pavement surface and discussed methods used for measurement and evaluation of texture characteristics and the strengths and weaknesses of these methods. Finally, some ideas have been suggested to develop new methods for better and proper measurement of skid resistance.