The competitive advantage of the system lies in its ability to provide early hazard detection through distance sensing, allowing risks to be identified from 60–100 metres away. This enables timely alerts to workers via multiple warning channels, including a siren, emergency light, and wireless vibrator. By delivering early and multi-sensory notifications, the system significantly enhances situational awareness and improves safety for highway workers in high-risk roadside environments.

Safety signages alone are often insufficient to adequately alert construction workers to potential hazards, as they are primarily designed to warn approaching vehicle drivers about maintenance activities ahead. As a result, they may not provide timely or effective warnings to highway construction workers themselves in the event of imminent danger, leaving a critical gap in on-site safety protection.

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The Signal Warning Detection (SWAD) System is designed to enhance highway worker safety by detecting approaching hazards from behind within a 60–100 metre range using a distance sensor. It alerts workers through a siren, emergency light, and a wireless vibrator, helping to prevent accidents in highway emergency lanes and roadside work areas.

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The SWAD System is an innovation that improves highway worker safety by detecting approaching hazards from 60–100 metres behind using distance sensing technology. Unlike traditional safety signage, it provides early, multi-sensory alerts through a siren, emergency light, and wireless vibrator, enabling faster response and helping to prevent accidents in roadside and highway work zones.

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