Ministry of Transporation SHOULD learn from South Korea.
Paint the roads with different colors to reduce the accident and congestion.
Check this video(in Korean)
https://youtu.be/5nG7zgVl75Y?si=fG-JKVYA-ii4a6_c

(쳇번역)
Even when driving with intense focus and navigation turned on, hearing the announcement "You have deviated from the route" can break anyone's mental composure. These situations often occur at crucial interchanges that you must exit, complex intersections, or junctions. Drivers whose mental composure is shattered may slam on the brakes or stop abruptly to turn back, potentially leading to serious accidents. Someone who first recognized this inconvenience and proposed a solution was Assistant Manager Yoon Seok-deok of the Korea Expressway Corporation.

한국에서 일어난 도로 위 혁명, 한국인은 잘 모르지만 전 세계가 주목하는 이것 / 디씨멘터리

https://youtu.be/5nG7zgVl75Y?si=NFpkUkFo56zRlry6