Benefits


 

    Maintenance Methods Require Crew Training

    Higher costs for maintenance generally produce a lower percentage of non-compliant signs.(14)

    Research offers several conclusions relative to sign management and maintenance.(14)
    • Visual inspection is one cost-effective sign maintenance strategy.
    • Regular daytime sign inspections can reduce the number of damaged signs between nighttime inspections.
    • Sign crews need training to bring their visual assessments in line with the new FHWA standard.
    • With training, a 10% increase in sign costs could reduce non-compliant signs from 19% to less than 10%.
    • NCDOT costs analyses in 2006 determined an average maintenance cost of $3.78 per sign to yield 91% compliance (9% non-compliant).



    14 Harris, E.A., Road sign deterioration and management, 2006 NCDOT Traffic Engineering Conference for Operations and Safety
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