The Gyeongbu Expressway is the second oldest and most heavily travelled expressway in South Korea, connecting Seoul to Suwon, Daejeon, Gumi, Daegu, Gyeongju, Ulsan and Busan. It has the route number 1, signifying its role as South Korea's most important expressway. The entire length from Seoul to Busan is 416 kilometers (258 mi) and the posted speed limit is 100 kilometers per hour (62 mph), enforced primarily by speed cameras.
Gyeongbu Expressway in Seongnam, Gyeonggi Province
Highway bus lane on Gyeongbu Expressway in Gyeonggi Province
Korean is the native language for about 81 million people, mostly of Korean descent. It is the official and national language of both North Korea and South Korea. The language has notable differences in each of the Koreas, in part owing to different official standardizations of the language. They are still largely mutually intelligible, however. South Korean newspaper Daily NK has claimed North Korea criminalizes the use of the South's standard language with the death penalty, and South Korean education and media often portray the North's language as alien and uncomfortable.
The oldest Korean dictionary (1920)
The Latin alphabet used in romanization on road signs, for foreigners in South Korea
Highway sign in Korean, Reunification Highway, Pyongyang, North Korea
Highway sign in Korean and English, Gyeongbu Expressway, Daegu, South Korea