Comparative Performance Analysis of Thermoplastic and High-build Pavement Markings PDF Download
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Author: Donnie DeBerry (Jr)
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 162
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Book Description
Performance data was collected and analyzed for the following pavement marking materials: Waterborne High-Build Paints, Forty (40) mil High-Binder Thermoplastics, and Ninety (90) mil Thermoplastics for life expectancy, application procedures, and governing policies. The data was obtained from the National Transportation Product Evaluation Program (NTPEP), a nationally accredited program that test pavement marking materials. Several key controlling measures used in the data collection include in-situ data from the same geographical location experiencing the same type of weather conditions, annual average daily traffic (AADT), and whether or not the materials were installed at the same time. This research will assist the Maryland Department of Transportation in selecting pavement marking materials for application throughout Maryland's highway infrastructure. -- Abstract.
Author:
Publisher:
ISBN:
Category : Road markings
Languages : en
Pages : 222
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Book Description
This research evaluated pavement marking performance and developed useful degradation models for thermoplastic and paint pavement markings which can help North Carolina meet the pending FHWA minimum retroreflectivity requirements. The impacts of several important factors (such as lateral location, directionality, region, and pavement roughness) on pavement marking retroreflectivity were evaluated. With two large datasets in hand, the authors determined whether these factors had significant impacts on marking retroreflectivity. Image processing techniques were used to analyze pavement marking surface glass bead density. The authors were able to explain why paint marking retroreflectivity values degraded over time by evaluating the impact of bead density on paint marking retroreflectivity. The research reviewed existing marking retroreflectivity degradation models and developed useful new models for both thermoplastic and paint pavement markings in North Carolina. The research presented a transportation asset management system framework for estimating the current and future condition of pavement markings. The research outcomes enable the North Carolina Department of Transportation to have a better understanding of thermoplastic and paint pavement marking performance, which can lead to cost saving by maximizing pavement marking service lifecycles.
Author: Donnie DeBerry (Jr)
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 162
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Book Description
Performance data was collected and analyzed for the following pavement marking materials: Waterborne High-Build Paints, Forty (40) mil High-Binder Thermoplastics, and Ninety (90) mil Thermoplastics for life expectancy, application procedures, and governing policies. The data was obtained from the National Transportation Product Evaluation Program (NTPEP), a nationally accredited program that test pavement marking materials. Several key controlling measures used in the data collection include in-situ data from the same geographical location experiencing the same type of weather conditions, annual average daily traffic (AADT), and whether or not the materials were installed at the same time. This research will assist the Maryland Department of Transportation in selecting pavement marking materials for application throughout Maryland's highway infrastructure. -- Abstract.
Author: Neville A. Parker
Publisher:
ISBN:
Category : Reflectors (Safety devices)
Languages : en
Pages : 122
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Book Description
Author: James Migletz
Publisher: Transportation Research Board
ISBN: 0309069246
Category : Road markings
Languages : en
Pages : 165
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Book Description
TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 306: Long-Term Pavement Marking Practices documents the current and best practices for managing pavement marking systems, identifies future needs, and addresses driver needs and methods of communicating information to drivers, selection criteria (e.g., reflectivity, pavement service life, wet weather performance), materials (e.g., color, durability, cost), specifications, construction practices, inventory management systems, and more.
Author: Anthony L. Andrady
Publisher: Transportation Research Board
ISBN: 9780309060646
Category : Bridges
Languages : en
Pages : 72
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
This research provides the evaluation of the technical measurements of pavement marking materials from a two-year data collection on 2002 National Transportation Product Evaluation Program (NTPEP)?s Mississippi Test Deck from June, 2002 to June 2004. The materials studied in this research were divided into permanent and temporary material groups on two different pavement surfaces ---- asphalt and concrete. The retro reflectivity and durability of permanent marking materials among different surfaces, colors and groups were studied. Also the characteristics for temporary tapes, which include internal tape strength, adhesion, tackiness and dicernablity were compared and regressed. This correlation analysis is to see whether these ratings are correlated to each other. The results of this study can be used for estimating service lives of pavement marking materials. They also can be used by states to select appropriate pavement marking materials for different needs.
Author: Benjamin H. Cottrell
Publisher:
ISBN:
Category : Road markings
Languages : en
Pages : 38
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Book Description
The purpose of this research was to determine the safety, motorist opinion, and cost-effectiveness of pavement marking materials used by the Virginia Department of Transportation and to develop guidelines, where possible, as to when each type of material should be used. Interstate and primary road segments that had been remarked with a different type of pavement marking material were identified to perform a before-and-after accident analysis. When possible, segments that were remarked using the same pavement marking material were included to provide comparison sections. The number of sites and accident count data were insufficient to support a finding that the use of a particular pavement marking material reduces the number of target accidents. The results of a motorist survey indicated that the participating drivers were more satisfied with pavement markings with higher retroreflectivity values than those with lower values. Participating drivers over the age of 65 were generally less satisfied with the brightness of the pavement markings than were participating drivers under the age of 65. Using a large contract for paint was the most cost-effective for two-lane roads under most volume conditions and four- and six-lane low-volume roads. Using polyurea and a large contract for paint were the most cost-effective for high-volume two- and four-lane roads. Polyurea and waffle tape were the more cost-effective durable markings for high-volume six-lane roads. Changes in the use of pavement markings were recommended. Specifically, the Virginia Department of Transportation should (1) consider increasing the use of large paint contracts and minimizing its use of small paint contracts when possible; (2) consider a performance-based specification for durable markings; (3) continue consideration of a holistic approach for pavement management and markings, and (4) re-evaluate its pavement marking policy and include the recommendations of this study.
Author: Conglong Yu
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages :
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Book Description
This research provides the evaluation of the technical measurements of pavement marking materials from a two-year data collection on 2002 National Transportation Product Evaluation Program (NTPEP)'s Mississippi Test Deck from June, 2002 to June 2004. The materials studied in this research were divided into permanent and temporary material groups on two different pavement surfaces -- asphalt and concrete. The retro reflectivity and durability of permanent marking materials among different surfaces, colors and groups were studied. Also the characteristics for temporary tapes, which include internal tape strength, adhesion, tackiness and dicernablity were compared and regressed. This correlation analysis is to see whether these ratings are correlated to each other. The results of this study can be used for estimating service lives of pavement marking materials. They also can be used by states to select appropriate pavement marking materials for different needs.
Author: Songquan Wang
Publisher:
ISBN:
Category : Road markings
Languages : en
Pages : 137
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Book Description
"Pavement markings are used on roadways to provide guidance and information to drivers and pedestrians. They include longitudinal markings (centerlines, lane lines, and edge lines), transverse markings (stop lines, yield lines, and crosswalk markings), and special markings (arrows, words, symbol markings, red or blue raised pavement markers, cross-hatching, dotted lines, reversible lane markings, two-way left turn lane markings, speed hump markings, and parking space markings). They come in different configurations and designs, making it possible for drivers and pedestrians to instantly recognize the meanings of the markings and quickly react to them so that they can travel safely and efficiently along the roadway. A wide range of marking materials are available, including traffic paints (solvent-base and water-base), polyester, thermoplastic, epoxy, modified urethane, polyurea, methyl methacrylate, preformed thermoplastic, and preformed tape. These materials vary in cost, effectiveness in providing a contrast in color from that of the underlying surface, visibility under adverse weather conditions such as rain and fog, adherence to different pavement surfaces, and durability under different traffic and environmental conditions. This research presents a comparative and statistical analysis study of pavement marking materials from the National Transportation Product Evaluation Program (NTPEP). The performance of seven types of pavement markings (thermoplastic, preformed thermoplastic, epoxy, polyurea, modified urethane, durable tapes, and methyl methacrylate) was compared based on retroreflectivity, durability, and color. These materials were selected from four different NTPEP test decks (Mississippi, Pennsylvania, Wisconsin, and Utah). The performance evaluation results were compared to preselected milestone performance criteria. In addition, their service life was predicted using four mathematical models (exponential, linear, power and natural logarithmic model). Pavement marking service life is defined as the time required for retroreflectivity to drop to a threshold value of 150 mcd/m2/lux for yellow markings. The outcome of this study can assist state highway agencies in selecting appropriate marking materials for different needs."--Abstract.
Author: Michael J. Markow
Publisher: Transportation Research Board National Research
ISBN:
Category : Business & Economics
Languages : en
Pages : 68
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Book Description
TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 408: Pavement Marking Warranty Specifications presents information on the use of pavement marking warranties by United States and Canadian transportation agencies, including agency specifications. European experience is also included in the report for comparison purposes. Appendices D and E for NCHRP Synthesis 408 are available online--
