Measurement of 30-Year Urban Expansion Using Spatial Entropy in Changwon and Gimhae, Korea

Entropy is widely used for measuring the degree of urban sprawl. However, despite intense use entropy concept in sprawl, entropy’s spatial context has been largely ignored. In this study, we analyzed sprawl Changwon and Gimhae cities, as they shared a common boundary but differed their population growth expansion. The land cover type, “urban dry area,” was to identify areas two map showed expansion 1980s, 1990s, 2000s, 2010s. Different zoning schemes, namely concentric rings regular partitioning, were applied. Shannon’s Batty’s indices measure results that ring not suitable decentralized polycentric city. less affected by scheme reflected pattern more accurately. Urban phenomenon occurring within context, can be better understood with appropriate schemes.