Abstract
Global cities are confronting challenges to seek usable sites, particularly public domains including brownfield and underused infrastructures to provide open space, inexpensive housing and other infill developments. Railroad yard is a large-scale urban planning infrastructural complex containing series of railroad tracks and supporting operational facilities which offers vast amount of open space to be built at multi-level. This study examines a unique railroad site of Shinjung Railroad Yard that has integrated an artificial ground to provide public housing. Nevertheless, currently the multi-level development is confronted with noise vibration problem, community severance design issue and discriminative perspectives toward to social housing. Relevant international precedents of multi-level and multi-use developments among railroad yard are analyzed regarding environmental, physical and social implications to derive implications for enhancing the Shinjung Railroad Yard. The result demonstrates the necessity to strengthen regional and communal connectivity through creating various public spaces on the artificial ground level, attract alternative public programs in proper locations, and develop the adjacent unexploited sites. The resolutions of the housing development integrated to an underused urban infrastructure in the case of Shinjung Railroad site further contributes to provide preliminary design instructions and implementational considerations in terms of future multi-level and mix-used infill developments among obsolete, underused urban planning facilities.