Temporary All-Weather Pavement Markings for Work Zones
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Slide 1
Temporary All-Weather Pavement Markings for Work Zones
Project Team: 3M and TTI
Award: $499,277
Slide 2
Need
- Retroreflectivity of conventional pavement markings diminishes signifigantly under wet weather conditions at night, which severely reduces their visibility
- Reduced pavement marking guidance can compromise motorist safety, especially in work zones, where unusual traffic patterns are common
- There is a growing need for pavement markings that sustain visibility under all weather conditions, customized for work zone applications and requirements
Slide 3
Proposed Solution
- Unique optical elements made of a ceramic core surrounded by very high-refractive index beads that provide retroreflectivity under wet conditions, both during and after rain events
- These optical elements are applied together with typical glass beads onto paint using conventional application methods
- Resulting optical system offers a promising and economic solution to improve wet-weather visibility of pavement markings in work zones
Slide 4
Night-Wet Conditions
Conventional Pavement Markings
All-Weather Pavement Markings
Slide 5
3M elements help yellow pavement markings reflect their color at night.
Slide 6
Conventional and All-Weather Markings Under Different Conditions
Day-Dry
Night-Dry
Slide 7
Night-Wet Conditions
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