Since the 1960s, construction of transportation infrastructure took place rapidly, and major national networks such as expressways, railways, airports, and seaports were built and served as the backbone for continued transportation expansion. Numerous important industries were developed along the Gyeongbu Axis, and in order to service those industries a main transportation network was established to connect Seoul with Busan. With the opening of Gyeongbu Expressway in 1970, the entire nation became more accessible to commuters, making it possible for travelers to move from pointto- point in the country within one day (“One-day Life Zone”). With the opening of Gyeongbu High Speed Railway in 2004, it became even more so. Literally, a “Half-day Life Zone" became available.

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