At what point must a special roadwork or service vehicle activate its V-2 warning light when travelling on a motorway?

Question

DentroTest · Accepted Answer

The correct answer is 'When entering the motorway'. The V-2 signal (yellow rotating beacon) indicates the position of vehicles performing services, stopped, or moving at reduced speed, thereby constituting an obstacle on the road. On high-speed roads like motorways, it is mandatory to activate this signal from the moment of entering the road to warn other users of the presence of a special vehicle that is likely travelling slower than the traffic flow. Waiting until arriving at the work zone or switching it on only at night would be dangerous and insufficient.

At what point must a special roadwork or service vehicle activate its V-2 warning light when travelling on a motorway?

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