The local highways of South Korea in the Gyeonggi Province are numbered in the 500s as the first digit stands for the main province of its manager and the longest being the Seosin–Janghowon Line.
The local highways of South Korea in the Gyeonggi Province are numbered in the 500s as the first digit stands for the main province of its manager and the longest being the Seosin–Janghowon Line.