Which device can enhance work zone visibility in addition to warning signs?

Flashing lights play a crucial role in enhancing work zone visibility by capturing the attention of drivers more effectively than static signs alone. These lights can be mounted on warning signs, placed at intervals along the road, or even attached to vehicles in the work zone. The blinking or fluctuating nature of the lights makes them highly effective at alerting motorists to potential hazards or changes in traffic patterns, particularly in low-light conditions or adverse weather where visibility is compromised.

While other options like traffic cones, speed bumps, and road paint also contribute to safety and visibility in a work zone, they have limitations. Traffic cones are typically stationary and may not attract as much attention as the dynamic nature of flashing lights. Speed bumps serve a different purpose—regulating vehicle speed rather than enhancing visibility. Road paint can mark lanes or boundaries but does not provide proactive alerts to drivers regarding upcoming work zones. Therefore, flashing lights are the most effective choice for improving visibility in work zones, ensuring a higher level of awareness and safety for both workers and motorists.