According to the Traffic Police Department (CSGT) - Yen Bai Provincial Police, the purpose of the adjustment is to ensure compliance with road signs, effectively serve the work of ensuring traffic order and safety and handling administrative violations in the field of road traffic in the area.
Light signals at adjusted intersections include:
At the intersection of Nam Cuong Intersection and the Intersection of the old Obstetrics and Pediatrics Hospital: vehicles are not allowed to turn right when there are red light signals.
At Km4 Intersection on Dien Bien Street (2 directions of traffic): install a signboard "Motors, motorbikes, and rudimentary vehicles are allowed to turn right" when there are red light signals.

At Cao Lanh 5-way intersection: Bach Lam and Dien Bien bridge axes are installed with signs "Motors, motorbikes, and rudimentary vehicles are allowed to turn right" when there are red light signals.
Hoang Hoa Tham and Ly Thuong Kiet streets: vehicles are not allowed to turn right when there are red light signals.
At Km2 Intersection (intersection of Dien Bien - Cao Thang Road) on Dien Bien Road (2 directions of traffic): vehicles are not allowed to turn right when there are red light signals.
At the Km3 bridge intersection (intersecting Dien Bien - Kim Dong road) on Dien Bien road, Km4 towards Km2: install a sign "Motors, motorbikes, and rudimentary vehicles are allowed to turn right" when there is a red light signal.

At the intersection of Nguyen Tat Thanh - Nguyen Quang Bich - Luong Yen streets: Nguyen Quang Bich street: vehicles are not allowed to turn right when there are red light signals.
Luong Yen Street: vehicles are not allowed to turn right when there are red light signals.
The authorities coordinated with the traffic police to conduct inspections, reviews, repairs, and fix problems with faulty, damaged, and inoperative traffic lights... to ensure the system operates stably and continuously.
Through patrolling and controlling, the Traffic Police will continue to inspect and review intersections with traffic lights to adjust the traffic light system to suit the traffic organization situation in the area.
Effectively serve the work of commanding and controlling traffic, preventing congestion and traffic accidents, ensuring order, safety and smoothness.
From May 12, the Yen Bai Traffic Police will continue to punish traffic violations according to the command of the new adjusted traffic light.