What signaling must road cleaning or maintenance vehicles activate when their operation poses a danger to traffic?

Question

DentroTest · Accepted Answer

The correct answer is the V-2 Luminous Signal. This signal consists of one or more auto yellow (amber) lights (rotating or flashing) visible in all directions. Detailed explanation:  V-2 Signal: It is mandatory for vehicles performing services, roadworks, or maintenance on the road when they are stopped or moving slowly, constituting an obstacle. Its goal is to alert others of the vehicle's presence without dazzling.  Permanent high beam: Incorrect. Using high beam headlights permanently would dazzle other road users and is not a designation for a service vehicle.  Permanent acoustic signal: Incorrect. The horn is only allowed to avoid imminent accidents or to warn of overtaking in certain cases. Its continuous use would generate noise pollution and confusion.

What signaling must road cleaning or maintenance vehicles activate when their operation poses a danger to traffic?

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