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  • Technical Report Documentation Page 1. Report No. FHWA/TX-06/0-4471-3

    2. Government Accession No.

    3. Recipient's Catalog No.

    4. Title and Subtitle DURABILITY OF PREFORMED THERMOPLASTIC PAVEMENT MARKINGS FOR HORIZONTAL SIGNING APPLICATIONS

    5. Report Date December 2005 Published: April 2006

    6. Performing Organization Code

    7. Author(s) Susan T. Chrysler, Steven D. Schrock and Timothy J. Gates

    8. Performing Organization Report No. Report 0-4471-3 10. Work Unit No. (TRAIS)

    9. Performing Organization Name and Address Texas Transportation Institute The Texas A&M University System College Station, Texas 77843-3135

    11. Contract or Grant No. Project 0-4471 13. Type of Report and Period Covered Technical Report: September 2002 October 2005

    12. Sponsoring Agency Name and Address Texas Department of Transportation Research and Technology Implementation Office P. O. Box 5080 Austin, Texas 78763-5080 URL: http://tti.tamu.edudocuments/0-4471-3.pdf

    14. Sponsoring Agency Code

    15. Supplementary Notes Project performed in cooperation with the Texas Department of Transportation and the Federal Highway Administration. Project Title: Evaluation of Horizontal Signing Applications URL: http://tti.tamu.edu/documents/0-4471-3.pdf 16. Abstract The results of two-year durability tests of preformed thermoplastic pavement marking materials are reported. A survey of material manufacturers is also presented. Pavement marking materials in the form of transverse lines, arrowheads, and sections of the letter S were installed at test decks on three Texas roadways. Small square sections of colored pavement marking materials were also tested for some of the manufacturers. Manufacturers representatives performed the installations. Three types of pavement surface were tested: concrete, asphalt, and seal coat. Retroreflectivity and color measurements of the materials were made at the time of installation, after one year, and after two years. Thickness of the material was measured prior to installation and at the same time intervals using video microscopy of samples chiseled from the roadway. 17. Key Words Horizontal Signing, Pavement Marking Symbols, Pavement Marking Materials, Durability Testing

    18. Distribution Statement No restrictions. This document is available to the public through NTIS: National Technical Information Service Springfield, Virginia 22161 http://www.ntis.gov

    19. Security Classif.(of this report) Unclassified

    20. Security Classif.(of this page) Unclassified

    21. No. of Pages 152

    22. Price

    Form DOT F 1700.7 (8-72) Reproduction of completed page authorized

    http://tti.tamu.edudocuments/0-4471-3.pdfhttp://tti.tamu.edu/documents/0-4471-3.pdfhttp://www.ntis.gov

  • DURABILITY OF PREFORMED THERMOPLASTIC PAVEMENT MARKINGS FOR HORIZONTAL SIGNING APPLICATIONS

    by

    Susan T. Chrysler Research Scientist

    Center for Transportation Safety Texas Transportation Institute

    Steven D. Schrock, P.E.

    Assistant Research Engineer Transportation Operations Group

    Texas Transportation Institute

    and

    Timothy J. Gates Assistant Transportation Researcher

    Transportation Operations Group Texas Transportation Institute

    Report 0-4471-3 Project 0-4471

    Project Title: Evaluation of Horizontal Signing Applications

    Performed in Cooperation with the Texas Department of Transportation

    and the Federal Highway Administration

    December 2005 Published: April 2006

    TEXAS TRANSPORTATION INSTITUTE The Texas A&M University System College Station, Texas 77843-3135

  • v

    DISCLAIMER

    The contents of this report reflect the views of the authors, who are responsible for the

    facts and the accuracy of the data presented herein. The contents do not necessarily reflect the

    official view or policies of the Federal Highway Administration (FHWA) or the Texas

    Department of Transportation (TxDOT). This report does not constitute a standard, specification,

    or regulation. The researcher in charge of this project was Dr. Susan Chrysler. The engineer in

    charge of this project was Steven D. Schrock, P.E., Texas License #92982.

    The materials included in this evaluation include several trademarked products, these are:

    Flametape registered trademark of Ennis Paint, Inc.

    PREMARK registered trademark of Flint Trading, Inc.

    HotTape registered trademark of Avery Dennison Corporation

    ThermaLine registered trademark of LaFarge, Inc. This product line was sold to Ennis

    Paint, Inc. in June 2003.

    Rocbinda registered trademark of Jobling Purser, Ltd.

    DigiMark registered trademark of Digital Markings, Ltd.

    StreetPrint registered trademark of Integrated Paving Concepts, Inc.

    The United States Government and the State of Texas do not endorse products or

    manufacturers. Trade or manufactures names appear herein solely because they are considered

    essential to the object of this report.

  • vi

    ACKNOWLEDGMENTS

    This project was conducted in cooperation with TxDOT and FHWA. The authors would

    like to acknowledge the support of Roy Wright of the Abilene District, who served as project

    director, Sally Wegman of the Houston District, who served as program coordinator, Greg

    Brinkmeyer of the Traffic Operations Division, who served as project advisor, and Wade Odell,

    the RTI Research Engineer. Jerry Howell and Herb Smart of the Construction Division also

    provided invaluable assistance with the durability testing. Dock Gee and Mike Manor of the

    Houston and Abilene Districts provided logistical support with test deck installations in those

    locations. This project enjoyed the great cooperation of the many pavement marking vendors

    who all provided their materials and installation technical service free of charge.

  • vii

    TABLE OF CONTENTS

    Page List of Figures............................................................................................................................. viii List of Tables ............................................................................................................................... xii Chapter 1: Pavement Marking Material Selection.................................................................... 1

    Vendor Survey ............................................................................................................................ 1 NTPEP Reports........................................................................................................................... 2

    Chapter 2: Test Deck Installation ............................................................................................... 7 Test Deck Materials and Configuration...................................................................................... 7 Test Instruments and Procedure................................................................................................ 10

    Material Thickness................................................................................................................ 11 Size of Marking..................................................................................................................... 12 Retroreflectivity .................................................................................................................... 13 Color Measurements ............................................................................................................. 13

    Test Deck Locations ................................................................................................................. 14 Asphalt Pavement: Austin..................................................................................................... 14 Concrete Pavement: Houston................................................................................................ 15 Chip-Seal Pavement: Abilene ............................................................................................... 15

    Chapter 3: Results of Durability Testing.................................................................................. 25 Retroreflectivity ........................................................................................................................ 25 Thickness .................................................................................................................................. 28 Color Measurements ................................................................................................................. 32

    Chapter 4: Recommendations for Additions or Revisions to TxDOTs Traffic Control Standards Sheets ........................................................................................................................ 43 Chapter 5: Conclusions and Recommendations ...................................................................... 45 References.................................................................................................................................... 47 Appendix A: Vendor Surveys ................................................................................................... A1 Appendix B: NTPEP Field Testing Procedures for Pavement Markings .............................B1 Appendix C: Materials Installed and Measurements Taken................................................. C1 Appendix D: Photographs of Test Decks................................................................................. D1 Appendix E: Retroreflectivity Data by Product and Location...............................................E1

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