Section 5: Pavement Marking Management Programs
Introduction
Recent advancement in mobile retroreflectometer technology
has provided transportation agencies with an objective field measurement
tool to evaluate nighttime pavement marking brightness. As a result,
some state agencies have initiated pavement marking management programs
using mobile pavement marking retroreflectometers to provide an
objective measure of marking quality, assisting in the optimization
of material selection and restriping cycles.
Advantages
Because TxDOT spends millions of dollars on pavement markings
each year, markings should be looked upon as a manageable asset.
Pavement marking management can be viewed simply as a method of
managing resources to optimize the cost-effectiveness of a pavement
marking program. Pavement marking management is based largely on
retroreflectivity performance over time. If used correctly, pavement
marking management provides a comprehensive approach to designing, constructing,
maintaining, and rehabilitating pavement markings in the most cost-effective
manner.
Current Circumstances
TxDOT currently does not have an objective statewide pavement
marking management program, although one may be developed in the
near future. Very little engineering is currently involved with
the selection and construction of pavement marking materials and
the maintenance and rehabilitation of markings. Most districts
base restripe decisions on visual observations performed on an annual
basis, while some restripe based on a regular cycle. On many occasions,
markings are restriped before or after their end of service life,
wasting monetary resources and presenting safety issues. In addition,
activities at the federal level suggest that in the future markings
will be required to meet minimum in-service levels of retroreflectivity.