In Tashkent, Uzbekistan, a traffic light synchronization system called 'Green Wave' was implemented on a two-kilometer section of road between Furkat and Shota Rustaveli streets. This measure allowed for a reduction in peak hour travel time from nine to seven minutes.
Specialists from the Tashkent City Traffic Management Center configured the traffic lights according to the direction of traffic flow both in the morning and in the evening. The system is designed for an average speed of about 45–55 km/h.
In the morning, 'Green Wave' operates in the direction from Furkat Street to Shota Rustaveli Street. In the evening, the synchronization works in the opposite direction—from Shota Rustaveli Street to Furkat Street.
After the changes were made, the travel time on the congested section decreased by two minutes, from nine to seven minutes, which represents a reduction of approximately 22%. It is important to note that this improvement is achieved not by increasing vehicle speed, but by coordinating the operation of neighboring intersections.
Coordinated traffic lights contribute to smoother traffic movement, minimizing the number of stops, repeated braking, and accelerations. For comparison, under free-flowing conditions, this section usually takes six to seven minutes, but after launching 'Green Wave', the travel time during rush hour remains around seven minutes.
Thus, the synchronization of nine traffic light installations along the two-kilometer section led to a reduction in congestion periods by almost a quarter. Work on the sequential adjustment and synchronization of traffic lights in Tashkent continues.
