Developing a GDOT pavement marking handbook using field test deck evaluation and long-term performance analysis : final report.
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2015-12-01
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Alternative Title:Georgia DOT research project 12-31 : developing a GDOT pavement marking handbook using field test deck evaluation and long-term performance analysis : final report.
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Edition:Final report
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Abstract:This research project comprehensively reviewed the state departments of transportation’s (DOTs) practices on
selecting and inspecting pavement marking materials (PMMs) and evaluated pavement marking
retroreflectivity data collected on the Georgia Department of Transportation (GDOT) Test Deck and the
National Transportation Product Evaluation Program (NTPEP) test decks. A methodology was developed to
enhance the reliability of pavement marking retroreflectivity analysis by systematically identifying and
removing retroreflectivity data with irregular variability, such as inconsistent retroreflectivity along the same
section, as well as irregular temporal jumps in retroreflectivity. Statistical models were further developed to
predict the retroreflectivity and expected service life of selected PMMs. Life-cycle cost analysis (LCCA) was
then conducted to calculate the expected life-cycle cost of each type of material. Results of the comprehensive
review and data analysis were finally integrated into a Pavement Marking Handbook for GDOT to have a
standardized and consistent reference for selecting and inspecting PMMs. An interactive tutorial was also
developed to enhance the content of the Handbook through interactive means such as images, videos, and user
inputs.
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