traffic light

Hanoi replaces and repairs nearly 3,000 traffic signs and lights

VietNamNet

11/03/2025

Hanoi police deny information 'man arbitrarily adjusted traffic lights'

VietNamNet

15/02/2025

Can traffic lights be hacked?

Báo Tuổi Trẻ

05/01/2025

Expert: Applying or removing the countdown clock system needs careful consideration

Việt Nam

07/07/2024