The current hazard light system in vehicles uses a single flashing amber light, which can create ambiguity in situations like turns or poor visibility. This often leaves other drivers unsure whether a vehicle is turning left, right, or simply stopped, increasing the risk of accidents.

A Multicolor Signaling Solution

One way to address this could be enhancing hazard lights with directional signaling by using different colors:

• Blue flashes for left turns,
• Green flashes for right turns,
• Amber for general hazard warnings (e.g., breakdowns).

This could be implemented using multi-color LEDs controlled by the existing turn signal stalk or a dedicated switch. Holding the turn lever while activating hazards could trigger the corresponding directional flash, reverting to standard turn signals once the vehicle reaches a certain speed.

Why This Could Work

This approach builds on existing vehicle lighting systems while adding clarity. Traditional turn signals use only amber, and while some advanced systems alter flash patterns for emergencies, none incorporate directional color-coding. Introducing standardized colors—similar to maritime or aviation signals—could reduce confusion. Automakers might adopt it as a premium safety feature, while regulators could endorse it if pilot programs prove it reduces collisions. Retrofitting older vehicles with aftermarket kits could also make it accessible.

Next Steps for Exploration

Testing could start with a prototype using modified LED assemblies and simulator studies to gauge driver reactions. Engaging regulators early would help align with lighting standards. A phased rollout—first in high-end cars, then mass-market models—could ease adoption. Potential challenges include driver familiarity and color visibility in fog, but high-intensity LEDs and public awareness campaigns might mitigate these.

By making vehicle intentions unmistakable, this idea could make roads safer without requiring major infrastructure changes.