Radiant Roadways

Intelligent · Illuminated · Connected

RADROAD‑APEX

Radar-triggered illuminated signs. Solar-autonomous. Remotely monitored. Built for the road.

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Internally illuminated legends. Proven superior.

A controlled Texas A&M Transportation Institute study tested nine sign treatments head-to-head. Internally illuminated legends — the technology behind RADROAD-APEX — dominated every metric.

+267% Legibility distance vs. standard retroreflective signs
42% Crash reduction at LED-enhanced intersections
52.9% Fewer stop-sign blow-throughs by distracted drivers
87% Of drivers 55+ prefer illuminated legends for reading signs at night

Sources: Texas A&M TTI LegendViz Study (2021) · Minnesota DOT (2014) · FHWA Report FHWA-HRT-11-067 (2011)

See the full evidence →
150 mph Wind Rating
≥ 50,000 hr Target MTBF
AC · DC · Solar Power Options
5 Year Warranty

Three tiers. One system.

01

APEX I — Illuminate

Internally illuminated. Even, uniform luminance across the entire sign face. Visible at 1,000+ ft. Learn more →

02

APEX II — Detect

Radar detection triggers on approaching vehicles. Configurable zones. Day and night. Learn more →

03

APEX III — Connect

Cellular telemetry. Battery SoC, temperature, luminance retention, tamper alerts. Learn more →

Endure

Aluminum chassis · Polycarbonate face · IP67 · –40°F to +135°F · 150 mph wind-rated

RADROAD-APEX illuminated stop sign
UL UL 48 Listed
FCC FCC Part 15
MUTCD MUTCD Compliant
BABA Buy America Eligible

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Deploy smarter signs.

Pilot programs available for DOT and municipal agencies.

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