TECHNOLOGY · ANALYSIS
Autonomous vehicles: NHTSA proposes cyan signal lights
NHTSA proposes a framework for signaling that a vehicle is operating autonomously without a human occupant monitoring the road. According to TechCrunch, the proposed system includes steady cyan lights visible from all sides, without making their adoption mandatory.
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How can people recognize a vehicle operating in autonomous mode without a human occupant monitoring the road? TechCrunch describes a proposal by the National Highway Traffic Safety Administration, NHTSA, to establish standards for dedicated signal lights. The exact date the proposal was submitted is not specified in the account.
The agency suggests cyan lights, a blue-green color, that remain steadily illuminated and are visible from the front, rear and sides of the vehicle. The proposal defines, among other things, their placement, color and activation conditions. According to the account, however, it would not make these lights mandatory: the proposed specifications for the system therefore do not constitute a general requirement to install it.
The text also proposes removing requirements relating to manual controls for turn signals, high beams and hazard lights. These provisions accompany a broader consideration of adapting rules to autonomous vehicles, discussed by the agency.
The issue can be understood as a question of clarity in public spaces: a common signal could help identify a vehicle’s operating mode. However, the information reported demonstrates neither that other road users understand it nor that it has an effect on safety. At this stage, it is a regulatory proposal, and the account provides no timetable for its adoption.