The Experts below are selected from a list of 270 Experts worldwide ranked by ideXlab platform
Matthew G. Karlaftis - One of the best experts on this subject based on the ideXlab platform.
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Prediction of Pavement Crack Initiation from In-Service Pavements
Transportation Research Record: Journal of the Transportation Research Board, 2005Co-Authors: Andreas Loizos, Matthew G. KarlaftisAbstract:It is widely accepted that the success of pavement management systems largely depends on the quality of the deterioration models embedded in their structure. As such, much research has concentrated on developing a large array of approaches to model and predict pavement distress and deterioration. This study develops surface distress prediction models for pavement failure times (the initiation of cracking on the surface of flexible and semirigid pavements) on the basis of a large (more that 1,000 observations) and recent (1998) data set collected from in-service pavements in 15 European countries by using the principles of stochastic duration (hazard) models. The results indicate that, as expected, Construction, Traffic, and climatic factors affect pavement distress and that the lognormal functional form, in contrast with the findings of previous studies, best describes the distress initiation process.
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Prediction of Pavement Crack Initiation from In-Service Pavements: A Duration Model Approach
Transportation Research Record, 2005Co-Authors: Andreas Loizos, Matthew G. KarlaftisAbstract:It is widely accepted that the success of pavement management systems largely depends on the quality of the deterioration models embedded in their structure. As such, much research has concentrated on developing a large array of approaches to model and predict pavement distress and deterioration. This study develops surface distress prediction models for pavement failure times (the initiation of cracking on the surface of flexible and semirigid pavements) on the basis of a large (more that 1,000 observations) and recent (1998) data set collected from in-service pavements in 15 European countries by using the principles of stochastic duration (hazard) models. The results indicate that, as expected, Construction, Traffic, and climatic factors affect pavement distress and that the lognormal functional form, in contrast with the findings of previous studies, best describes the distress initiation process.
John M Mounce - One of the best experts on this subject based on the ideXlab platform.
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MISUNDERSTOOD APPLICATIONS OF URBAN WORK ZONE Traffic CONTROL
Transportation Research Record, 1991Co-Authors: Michael A Ogden, John M MounceAbstract:Traffic control manuals do not sufficiently address many of the problems associated with urban arterial work zones. The Traffic control devices applied within these work zones are sometimes misunderstood by the motorist. In order for there to be safe operations within urban roadway work zones, it is important that the Traffic control be applicable to this specific environment. A motorist survey was initiated on Abrams Road in Dallas, Texas, to investigate comprehension of Construction Traffic control devices. Abrams Road is a four-lane undivided major urban arterial roadway. The survey was designed to meet the following objectives: (a) to ascertain knowledge about work zone Traffic control, (b) to determine problematic Construction Traffic control devices with respect to motorist comprehension, (c) to elicit information from motorists concerning overall problems with the Abrams Road project, and (d) to substantiate or negate findings from a similar study in Houston, Texas. Personal interviews were conducted with 345 respondents in the Abrams Road area. These participants were asked to respond to questions regarding work zone signing and other forms of Traffic control devices. The response percentages substantiated most of the findings from the earlier study revealing that motorists have some difficulty comprehending selected work zone Traffic control applications.
Andreas Loizos - One of the best experts on this subject based on the ideXlab platform.
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In situ damage evaluation of geogrid used in asphalt concrete pavement
2017Co-Authors: Cyrille Chazallon, Mai Lan Nguyen, T. Nguyen, E. Godard, Pierre Hornych, D. Doligez, L. Brissaud, Andreas Loizos, Imad Al-qadi, Tom ScarpasAbstract:In this paper we present the first results of the national French project SolDuGri dealing with pavement reinforcement by geogrids. In this project, full scale tests have been performed to evaluate the in situ damage of geogrids in asphalt concrete pavements. The tests consisted in building test sections with four different types of geogrids, and two different compacted asphalt concrete layers above. After Construction, the geogrids have been recovered from different locations on the field sections, where they had been subjected to compaction only, or also to Construction Traffic, and their residual mechanical properties have been evaluated in the laboratory.
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Prediction of Pavement Crack Initiation from In-Service Pavements
Transportation Research Record: Journal of the Transportation Research Board, 2005Co-Authors: Andreas Loizos, Matthew G. KarlaftisAbstract:It is widely accepted that the success of pavement management systems largely depends on the quality of the deterioration models embedded in their structure. As such, much research has concentrated on developing a large array of approaches to model and predict pavement distress and deterioration. This study develops surface distress prediction models for pavement failure times (the initiation of cracking on the surface of flexible and semirigid pavements) on the basis of a large (more that 1,000 observations) and recent (1998) data set collected from in-service pavements in 15 European countries by using the principles of stochastic duration (hazard) models. The results indicate that, as expected, Construction, Traffic, and climatic factors affect pavement distress and that the lognormal functional form, in contrast with the findings of previous studies, best describes the distress initiation process.
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Prediction of Pavement Crack Initiation from In-Service Pavements: A Duration Model Approach
Transportation Research Record, 2005Co-Authors: Andreas Loizos, Matthew G. KarlaftisAbstract:It is widely accepted that the success of pavement management systems largely depends on the quality of the deterioration models embedded in their structure. As such, much research has concentrated on developing a large array of approaches to model and predict pavement distress and deterioration. This study develops surface distress prediction models for pavement failure times (the initiation of cracking on the surface of flexible and semirigid pavements) on the basis of a large (more that 1,000 observations) and recent (1998) data set collected from in-service pavements in 15 European countries by using the principles of stochastic duration (hazard) models. The results indicate that, as expected, Construction, Traffic, and climatic factors affect pavement distress and that the lognormal functional form, in contrast with the findings of previous studies, best describes the distress initiation process.
Matthew Thompson - One of the best experts on this subject based on the ideXlab platform.
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EFFECT OF MATERIAL, DESIGN, AND Construction VARIABLES ON SEAL-COAT PERFORMANCE
Transportation Research Record, 1991Co-Authors: R Roque, David Anderson, Matthew ThompsonAbstract:A field study conducted at the Pavement Durability Research Facility of the Pennsylvania Transportation Institute and on Pennsylvania Route 64 to determine the effect of specific Construction, Traffic, and materials variables on the performance of bituminous seal coats is described. The condition of the existing surface (worn or leveled), emulsion application rate, rolling patterns, time between Construction operations and opening to Traffic, and polymer modification were among the study variables. Accelerated Traffic was applied to the sections for 1 year, and the performance, skid resistance, visual evaluations, and mean texture depth were documented. Design and construciton variables were found to diminish the other study variables. Conclusions are presented that relate to the different phases of a seal-coat operation, including surface preparation, materials selection and specification, seal-coat design, Construction procedures, and quality control.
Michael A Ogden - One of the best experts on this subject based on the ideXlab platform.
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MISUNDERSTOOD APPLICATIONS OF URBAN WORK ZONE Traffic CONTROL
Transportation Research Record, 1991Co-Authors: Michael A Ogden, John M MounceAbstract:Traffic control manuals do not sufficiently address many of the problems associated with urban arterial work zones. The Traffic control devices applied within these work zones are sometimes misunderstood by the motorist. In order for there to be safe operations within urban roadway work zones, it is important that the Traffic control be applicable to this specific environment. A motorist survey was initiated on Abrams Road in Dallas, Texas, to investigate comprehension of Construction Traffic control devices. Abrams Road is a four-lane undivided major urban arterial roadway. The survey was designed to meet the following objectives: (a) to ascertain knowledge about work zone Traffic control, (b) to determine problematic Construction Traffic control devices with respect to motorist comprehension, (c) to elicit information from motorists concerning overall problems with the Abrams Road project, and (d) to substantiate or negate findings from a similar study in Houston, Texas. Personal interviews were conducted with 345 respondents in the Abrams Road area. These participants were asked to respond to questions regarding work zone signing and other forms of Traffic control devices. The response percentages substantiated most of the findings from the earlier study revealing that motorists have some difficulty comprehending selected work zone Traffic control applications.