More than 60 percent of markings fall below minimum visibility before they are repainted. Faded lines cut lane guidance at night and in rain, exactly when drivers rely on them most. This guide covers why markings fade and how to schedule re-marking by measured visibility instead of by calendar.
What Is Inside
- How a marking is built, from pavement surface to retroreflective glass beads
- The 1.5 billion dollar global annual spend on marking maintenance
- How AI classifies six marking types and scores visibility
- A condition matrix by retroreflectivity, in mcd/lux/m squared
What Causes Fading
- Traffic abrasion grinding away material, fastest in the wheel paths
- UV and weathering breaking down pigment and binder
- Ploughing and de-icing chemicals scraping markings each winter
- Thin or low-quality application wearing out before its service life
How AI Finds It
- Collect: dashcam on any vehicle or phone, GPS-tagged, no road closures
- Detect: six marking types classified and visibility-scored automatically
- Locate: exact GPS and chainage, with a retroreflectivity estimate attached
- Deliver: network visibility report with retroreflectivity maps and cost estimates
Condition and What To Do
- Good, above 300: bright and clearly visible day and night, routine monitoring
- Fair, 150 to 300: slightly dulled, re-mark this season, within 6 months
- Poor, 100 to 150: hard to see at night or in rain, schedule re-marking within 60 days
- Critical, below 100: nearly invisible, immediate re-marking
Who It Is For
- Road authorities and highway agencies
- Road safety and maintenance teams
- Marking contractors and consultants
Retroreflectivity-based scheduling targets only what is actually fading, instead of a blanket repaint of the whole network.
