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Please note that the English version of this text has been prepared with the assistance of AI, and in some instances, it may not have been subsequently reviewed or edited by the authors.
Description
At night, approximately 30% of road fatalities in the EU involve vehicle run-off-road accidents, especially on curves where road signs fall outside the headlight reflection cone. This solution enables low-cost, energy-efficient upgrading of existing signage and guardrails by directly depositing on to the substrate thin, dense, and durable SrAl2O4:Eu,Dy stripes that glow for several hours after excitation by vehicle headlights or daylight.
The Achievable Results
Develop a programmable laser direct-write technology for integrating long-lasting luminescent materials (SrAl₂O₄:Eu,Dy) onto standard road signs and infrastructure surfaces. Create functional prototypes (road signs, guard rails, markings) with integrated afterglow.
The Anticipated Benefit
Impact: fewer nighttime accidents, improved safety on rural roads, resilience during power outages, and lower operating costs. The benefit to the Latvian economy is also significant – exportable innovative product (IP) and an expanded range of services for local sign manufacturers, creating high-value jobs.
The Allocated Funding
189,571 EUR by 03/01/2026.
Team
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