safety dummies with electric flag-bearers
Every dusty construction site has an engineering puppet standing on the road directing traffic or blessing peace like a god, and they are standard equipment listed in regulations: electric flagman.
High-speed Bureau Electric Flagship 110V AC/DC Dual Use + Speed Regulator
Raincoat vest flag should have reflective strips
Standard Electric Flagger 110V AC/DC Dual Use - Trolley Base
There are small solar warning lights on the head and the tail of both arms.