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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:
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: Highway Innovative Technology Evaluation Center (U.S.)
Publisher: ASCE Publications
ISBN: 9780784474891
Category : Technology & Engineering
Languages : en
Pages : 84
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Book Description
Prepared by the Highway Innovative Technology Evaluation Center (HITEC), a CERF Innovation Center. This report summarizes the results of detailed evaluations performed on four handheld and two mobile pavement marking retroreflectometers. The evaluations were designed to test the measurement bias, repeatability, and reproducibility of handheld and mobile retroreflectometers produced by several manufacturers.
Author: Michael J. Markow
Publisher: Transportation Research Board
ISBN: 0309143209
Category : Business & Economics
Languages : en
Pages : 223
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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--
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: Zongzhi Li
Publisher:
ISBN:
Category : Highway departments
Languages : en
Pages : 156
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Book Description
Author:
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 466
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Book Description
Author: Highway Innovative Technology Evaluation Center (U.S.)
Publisher: ASCE Publications
ISBN: 9780784474808
Category : Technology & Engineering
Languages : en
Pages : 82
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Book Description
Prepared by the Highway Innovative Technology Evaluation Center (HITEC), a CERF service center. This report presents the results of a detailed evaluation ofĂthe MX 30 pavement marking 30-meter retroreflectometer. The evaluation is designed to test the measurement bias, repeatability, and reproducibility of handheld and mobile retroreflectometers produced by several manufacturers.
Author: Eli Cuelho
Publisher:
ISBN:
Category : Road markings
Languages : en
Pages : 38
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Book Description
The objective of this study is to provide the Montana Department of Transportation (MDT) with information that will be useful in selecting cost effective pavement marking systems. This report begins with a description of available pavement marking technologies, including a discussion of performance parameters of importance and the advantages and disadvantages offered by the various technologies. A review of some of the pertinent studies completed by other states (Pennsylvania, Kansas, Minnesota, Virginia, Wyoming, North Dakota, and Idaho) on their pavement marking programs is subsequently presented. Based on the summary of the states included in this study, pavement markings such as conventional paints are viable in areas where pavement markings do not experience high levels of wear due to traffic or winter maintenance activities. In areas where more durability is required, such as intersections, highways in snowy areas, etc., durable products like epoxy paints or thermoplastics are justified. Since the MDT is able to procure epoxy paint markings for a very reasonable cost, greater use of this durable pavement marking is certainly justified, especially considering the level of wear Montana state highways experience from snowplowing and sanding. MDT investigation of the use of mid-durable paints is warranted due to increased durability and lower cost of these products. In spite of their high cost, extruded thermoplastics and preformed tapes are still viable in areas of high wear, such as intersections and urban streets, according to the results of the studies reviewed in this report.
Author: Adam Matthew Pike
Publisher: Transportation Research Board
ISBN: 0309283582
Category : Transportation
Languages : en
Pages : 151
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Book Description
"TRB's National Cooperative Highway Research Program (NCHRP) Report 759: Effective Removal of Pavement Markings aids in the selection of safe, cost-effective, and environmentally acceptable practices for the removal of work zone and permanent pavement markings. The practices highlighted in this report emphasize minimal damage to the underlying pavement or visible character of the surface course." -- Publisher's description
Author: Highway Innovative Technology Evaluation Center (U.S.)
Publisher: ASCE Publications
ISBN: 9780784475058
Category : Technology & Engineering
Languages : en
Pages : 132
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Book Description
This report describes a HITEC evaluation designed to determine the basic capabilities and limitations of CON/SPAN Wingwalls for use as a precast retaining wall system. The evaluation was conducted based on design, construction, performances, and quality assurance information outlined in the HITEC Protocol.
