Safety Digital Box

The Voice Prior the Hand: Active Notification that Saves Time and Lives

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Hazards of At-Grade Crossings Without Advanced Warnings (AWS)

In contrast to crossings with full AWS, these examples show real locations where minimal warning infrastructure leaves pedestrians and cyclists relying on reactive cues only.

Evening view of a wide crosswalk near rail with traffic lights and cars
Fig. 1 — Dusk conditions reduce visibility and increase distraction risk.
Busy daylight intersection with vehicles and a person on a scooter near tracks
Fig. 2 — Complex traffic mixes (cars, scooters) compete for attention.
Pedestrians near a transit station crossing embedded rails
Fig. 3 — Near stations, frequent crossings with limited proactive alerts.
Urban crossing with rails, signs and pedestrians across a boulevard
Fig. 4 — Wide boulevards and long walks add delay pressure.
Very wide intersection with crosswalk markings and overhead wires
Fig. 5 — Large intersections increase exposure time on foot or bike.
Close view of rail tracks intersecting a crosswalk with a person crossing
Fig. 6 — Embedded rails can be mistaken for refuge space.
Crossing area near a gas station with traffic and pedestrians
Fig. 7 — Commercial activity adds visual and auditory distraction.
Night intersection scene with reflective crosswalks and traffic lights
Fig. 8 — Nighttime glare and low contrast hinder hazard recognition.

Environmental conditions, human factors, and layout complexity combine to increase risk at passive crossings—illustrating why layered, event-linked alerts are needed.

A Signal Hand is NOT Enough!

A single hand signal or basic sign is inadequate against the hazards and vulnerabilities shown above.

Introducing Safety Digital Box

Safety Digital Box: The voice prior the hand—active notifications that save time and lives.

SDB delivers staged, multi-sensory alerts (visual + multilingual audio) tied to train approach, direction, and proximity—bringing proactive awareness to passive crossings.

How Safety Digital Box Works

As a train approaches, SDB activates caution with flashing visuals and clear audio. If risk escalates, SDB shifts to danger with urgent warnings that halt entry. When dual threats emerge, alerts intensify and announce directions for safe decision-making.

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