United States Department of Transportation
i
Life cycle and economic efficiency analysis phase II : durable pavement markings.
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2011-04-01
[PDF-520.83 KB]
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Abstract:This report details the Phase II analysis of the life cycle and economic efficiency of inlaid tape
and thermoplastic. Waterborne paint was included as a non-durable for comparison purposes
only. In order to find the most economical product for specific traffic and weather conditions,
the project examined the relationship between the pavement marking materials’ retroreflectivity
and input variables. For three to four years, retroreflectivity data was collected from six
locations in the state of Maryland. The sites were selected based on the amount of traffic and
snowfall they received. Phase I of this study was done with one year of data, but that data
collection period could not provide reasonable and reliable estimates of future retroreflectivity.
As hoped, a two-year extension of the data collection period produced better estimates. The
results of this research show that snowfall is a major factor in the deterioration of the
retroreflectivity. The life cycle of each material was estimated under different conditions, and
the installation cost of each material was estimated for the economic efficiency analysis. The
results suggested that specific materials should be applied for specific weather and traffic
conditions. Although inlaid tape’s estimated life cycle was longer than thermoplastic’s,
thermoplastic’s lower cost made it the more economical material for all conditions.
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