What if traffic lights could leave their posts to hover over crowded intersections?
In eastern China, Jinhua’s traffic police in Zhejiang Province are testing an unusual solution: a drone carrying a temporary tricolor traffic light above the roadway. The device was tested during the Chinese National Day holidays, at the beginning of October 2026, to help manage the flow of cars and pedestrians.
According to Xinhua News Agency, these “flying lights” can be deployed on demand when a sudden influx of vehicles or visitors complicates traffic.
A luminous cube suspended above the intersection
The experimentation took place notably in the historic district of Guzi Cheng, in Jinhua. During the holidays, this tourist area welcomes many visitors, particularly in the evening. On Piaoping Road, near Baoning Gate, the simultaneous movement of pedestrians and motorists creates difficulties for the officers responsible for directing traffic.
The police therefore launched a drone equipped with a luminous cube whose faces display the usual indications: red to stop, green to go. The device remains visible above the intersection and reinforces the instructions given by the officers on the ground.
According to local radio Zhejiang Traffic Radio (FM93), the pilot changes the signal shown to road users by rotating the drone. The system can also broadcast vocal announcements to guide pedestrians and drivers, Xinhua notes.
Why make a traffic light fly?
The aim is to have a temporary tool at places where traffic suddenly increases, especially around tourist sites, during holidays or major gatherings.
Installing fixed traffic lights at every intersection that becomes occasionally congested is not always suitable, particularly in the narrow streets of historic neighborhoods. A drone, by contrast, can be moved to the intersection that needs it, then removed when the situation returns to normal.
The system does not replace the police: in Jinhua, it was used in coordination with the officers deployed on the street. The aerial signaling is primarily to make their instructions more visible from a distance and to facilitate sharing of the roadway between vehicles and pedestrians.
A promising experiment, but still without numerical results
This initiative illustrates a new use of drones in urban services. Beyond traffic surveillance, these devices could become mobile equipment for assistance during occasional traffic disruptions.
The system remains experimental, however. Local reports describe assistance to intersection management, but the information published by Xinhua does not provide either measured reductions in congestion, or figures on waiting times, or a timetable for rollout.
Its effectiveness on a larger scale will depend in particular on deployment conditions and good coordination with road signage and law enforcement. For now, the innovation mainly shows that a traffic light can become mobile and aerial, rather than fixed at the roadside.
