Evaluation Off Alternative Pavement Marking Materials

Evaluation Off Alternative Pavement Marking Materials
Author:
Publisher:
Total Pages: 50
Release: 1995
Genre:
ISBN:

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This study was undertaken to evaluate potential alternative marking materials for use on airport pavement marking systems. The materials were evaluated for conspicuity, durability, rubber buildup, color retention, friction, environmental acceptability, and cost benefits. In all, five materials (two water-borne, two epoxies, and one methacrylic resin) were evaluated at three test airports around the country for a period of one year. The three test airports, chosen for their different climatic conditions, were Atlantic City, Greater Pittsburgh, and Phoenix Sky Harbor International airports. Epoxies and resins were more durable than water-borne paints in areas subject to heavy snowfall and snowplow activity, particularly when applied to Portland cement concrete surfaces. The epoxies tested, however, did show signs of yellowing after extensive ultraviolet exposure. It was also determined that the addition of silica and/or glass beads improved the conspicuity of the markings, improved friction, and minimized rubber adherence. The cost-benefit analysis showed that more durable materials and the addition of silica and/or beads does increase the initial cost of marking the airport surfaces but could reduce the number of painting cycles on many portions of the airport from several times per year to once every several years.

Evaluation of Construction-zone Pavement Marking Materials

Evaluation of Construction-zone Pavement Marking Materials
Author: Kenneth R. Agent
Publisher:
Total Pages: 30
Release: 1987
Genre: Reflectors (Safety devices)
ISBN:

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The objectives of this study were to evaluate available foil-back and removable tapes as well as construction-zone raised pavement markers and to recommend materials that should be included on approved lists for use by the Kentucky Department of Highways. Tapes and markers were placed on transverse test sections and the reflectivity, durability, and appearance were observed. Tapes to be included on the approved lists for foil-back and removable tapes were recommended. Tapes manufactured by 3M, Flex-O-Lite, Cataphote, and Swarolite were included on the list of acceptable foil-back tapes. Recommended removable tapes were the 3M and Cataphote removable tapes. Stimsonite 66 and Flex-O-Lite construction-zone markers were included on the approved list for construction-zone raised pavement markers. More specific guidelines were developed to use in future evaluations of construction-zone preformed tape and markers.

Long-term Pavement Marking Practices

Long-term Pavement Marking Practices
Author: James Migletz
Publisher: Transportation Research Board
Total Pages: 165
Release: 2002
Genre: Road markings
ISBN: 0309069246

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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.

Pavement Marking Materials

Pavement Marking Materials
Author: Anthony L. Andrady
Publisher: Transportation Research Board
Total Pages: 72
Release: 1997
Genre: Bridges
ISBN: 9780309060646

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Synthesis of Benefits and Costs of Alternative Lane Marking Strategies

Synthesis of Benefits and Costs of Alternative Lane Marking Strategies
Author: Michael D. Fontaine
Publisher:
Total Pages: 70
Release: 2009
Genre: Road markings
ISBN:

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The Virginia Department of Transportation (VDOT) currently uses snowplowable raised pavement markers (SRPMs) to supplement longitudinal pavement markings on some facilities. SRPMs are much more visible than traditional longitudinal markings under wet, nighttime conditions. SRPMs have been reported to dislodge from pavement, however, which has raised the question as to whether alternative marking materials might be able to replace SRPMs. The purpose of this study was to investigate the visibility performance of longitudinal pavement marking materials currently on the market. The specific objectives of this study were (1) to determine whether or not new pavement marking materials could be used in place of SRPMs; (2) if SRPMs were to be used, to develop guidelines for their installation and maintenance; and (3) to determine the costs and benefits of using SRPMs to the maximum extent possible. No new data on the visibility or durability of pavement marking materials were collected for this study. The study primarily synthesized existing research on the characteristics of different marking materials and then applied information derived from the synthesis to Virginia-specific data to estimate the impacts of using different materials. National practices for installing, inspecting, and maintaining SRPMs were also reviewed. The results of the literature review indicated that SRPMs remain the only marking system that provides sufficient nighttime preview time at high speeds, especially under wet conditions. Further, SRPMs can improve safety in certain situations, but they can also degrade safety in other situations since drivers may travel at higher speeds when the distance they can see down the road at night increases. Proposed guidelines for the installation and maintenance of SRPMs were developed. They recommend that SRPMs be installed on all limited access freeways, on all two-lane roads with an average daily traffic volume above 15,000 vehicles per day, and on all roads with a posted speed limit of 60 mph or greater. Several other situations where SRPMs might be installed based on engineering judgment were also identified. A proposed maintenance schedule that requires inspections every 2 to 3 years was also developed. A conservative economic analysis indicated that the benefits of installing and maintaining SRPMs using the guidelines developed in this study outweighed the costs by more than 80 to 1, based purely on potential safety improvements on road geometries where SRPMs have been shown to improve safety. Further, VDOT can realize cost savings by discontinuing SRPM usage on low-volume facilities and by revising particular SRPM standards.

Development of a Pavement Marking Material Matrix for ODOT District 11

Development of a Pavement Marking Material Matrix for ODOT District 11
Author: Ala R. Abbas
Publisher:
Total Pages:
Release: 2016
Genre: Road markings
ISBN:

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This study was initiated by ODOT to evaluate the performance of four pavement marking materials (fast dry traffic paint, polyester, extruded thermoplastic and epoxy) in order to determine which materials are most suitable for the environmental and traffic conditions in ODOT District 11, which contains mostly rural roads with relatively low traffic levels (ADT less than 5,000 vehicles per day) and some areas of mountainous terrain. The main focus of this study was to evaluate the performance of fast dry traffic paint and polyester as restriping materials; however, epoxy and thermoplastic were included in the evaluation for comparison purposes. The four materials were installed at 11 test sites distributed across the district on two-lane and four-lane highways having a variety of pavement types, pavement geometries, and traffic volumes. The performance of the pavement markings was evaluated in the field for a period of two years in terms of dry retroreflectivity, daytime color, and durability. Laboratory test procedures were also included to examine the quality of the glass beads used in this study. The field performance results were analyzed to determine the service life of the various marking materials. In addition, the results were used to estimate the life cycle cost of these materials and develop a material selection matrix for use in District 11. Based on the outcome of this study, it was recommended that District 11 continue to use epoxy on new asphalt and concrete surfaces and to use traffic paint for restriping applications. For two-lane roads with asphalt surfaces, it was recommended to restripe the edge lines every two years and restripe the centerlines every year. On selected roads with sharp curves that slope towards the Ohio River, it was recommended to restripe the centerlines as well as the edge lines on an annual basis to avoid run-off road crashes. For multi-lane roads with asphalt surfaces, it was recommended to restripe locations with low traffic and good pavement condition every two years and restripe all lines at locations with high traffic (ADT greater than or equal to 10,000 vehicles per day) or rough pavement condition (pavement condition rating (PCR) less than 80) every year. For all roads with concrete surfaces, it was recommended to restripe all lines every year regardless of the traffic level and pavement condition. One material that is increasingly being used in Ohio for striping and restriping applications on asphalt surfaces is spray thermoplastic. This material was not included in this study because it is not compatible with epoxy, which was previously installed on several of the test sites prior to the beginning of this project. Some districts reported favorable results from using spray thermoplastic. Therefore, District 11 is encouraged to look into using this less expensive material as an alternative for epoxy markings on new asphalt surfaces. It should be emphasized that the previous recommendations are specific to District 11 and may not be applicable to other ODOT districts due to variations in traffic levels, environmental conditions, and pavement marking material selection practices.