Title Declining Block Lengths in South Korea’s New Town Designs
Authors 심준형(Shim, Junhyeong) ; 강범준(Kang, Bumjoon)
DOI https://doi.org/10.5659/JAIK.2024.40.11.191
Page pp.191-198
ISSN 2733-6247
Keywords New Town; Urban Morphology; Block Size; Time Series Analysis
Abstract This study measures changes in block size over time in new town designs across South Korea and identifies factors influencing these changes. Blocks are defined as pedestrian-accessible areas bordered by arterial roads and infrastructure boundaries, with block length calculated as the square root of the block area. The analysis uses residential development district data from 1977 to 2021, considering four factors: district location, year of designation, planned density, and land use at the block level. ANOVA and multiple regression models are used to assess block length changes and contributing factors. The findings show a general decrease in block length over time, with significant reductions in 1985, 2005, and 2010. Blocks designated after 2011 typically range from 230-250m in length, compared to around 400m for blocks designated before 1985. Blocks in the Seoul metropolitan area and those planned for multi-family housing and infrastructure tend to have larger lengths than others.