Claim: 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.
Evidence: In South Korea, highways that are managed by the provincial governments are called Local highways (Korean: 지방도; Hanja: 地方道; RR: Jibangdo). Gyeonggi Province: 300s Usually route numbers have 2~4 digits; the first digit stands for the main province of its manager. A lot of Local highways of Gyeonggi Province were changed in 1996 and 2005. ■(#CCDDCC) is origin or terminus that is not located in Gyeonggi Province. 301 Number Local Route 301 Name Ujeong–Jeongwang Line 302 Local Route 302 Ihwa–Geumgwang Line
Deoksan–Osan Line 305 Local Route 305 Seosin–Choji Line 306 Local Route 306 Yanggam–Yulmyeon Line
Iljuk–Eumseong Line 309 Local Route 309 Poseung–Gwacheon Line 310 Local Route 310 Geumui–Bongmyeong Line 311 Local Route 311 Galgot–Yeongdeok Line 313 Local Route 313 Paengseong–Sasa Line 314 Local Route 314 Jeongnam–Anseong Line 315 Local Route 315 Paengseong–Guseong Line 317 Local Route 317 Pyeongtaek–Giheung Line 318 Local Route 318 Seosin–Janghowon Line 321 Local Route 321 Gongdo–Opo Line 322 Local Route 322 Daebu–Annyeong Line 325 Local Route 325 Geumgwang–Toechon Line
Jincheon–Anseong Line 329 Local Route 329 Iljuk–Daewol Line
Mugeuk–Yongmun Line 330 Local Route 330 Gojan–Mokgam Line 333 Local Route 333 Yulmyeon–Gangha Line
Cheongcheon–Yulmyeon Line 334 Local Route 334 Hagui–Geumgok Line 337 Local Route 337 Janghowon–Mohyeon Line 338 Local Route 338 Seongnam–Toechon Line 341 Local Route 341 Ganam–Danwol Line 342 Local Route 342 Seongnam–Yangdong Line 345 Local Route 345 Jeomdong–Danwol Line 349 Local Route 349 Gangcheon–Cheongun Line
Munmak–Danwol Line 352 Local Route 352 Wabu–Okcheon Line 355 Local Route 355 Yangchon–Haseong Line 356 Local Route 356 Wolgot–Dongsan Line 357 Local Route 357 Deogyang–Gyoha Line 358 Local Route 358 Gimpo–Gwansan Line 359 Local Route 359 Ilsan–Munsan Line 360 Local Route 360 Tongildongsan–Gasan Line 363 Local Route 363 Hwajeon–Tanhyeon Line 364 Local Route 364 Munsan–Gapyeong Line 367 Local Route 367 Byeokje–Jangnam Line 368 Local Route 368 Cheongsan–Jeo kmok Line 371 Local Route 371 Ogeum–Jungmyeon Line 372 Local Route 372 Gunnae–Baegun Line
Gwangdeok–Maengdae Line 375 Local Route 375 Gwangjeok–Misan Line 376 Local Route 376 Jungmyeon–Gwanin Line 379 Local Route 379 Junae–Sinbuk Line 383 Local Route 383 Jigeum–Jinjeop Line 387 Local Route 387 Hwado–Gwanin Line
Naechon–Cheolwon Line 391 Local Route 391 Yangseo–Hwaak Line
Gyeonggang–Sanae Line