Indicative polygon of subzone boundary for Singapore Census of Population 2010. Subzones are divisions within a planning area which are usually centred around a focal point such as neighbourhood centre or activity node. There can be more than 10 subzones within a Planning Area. Singapore Census of Population 2010 is published by Department of Statistics, Singapore. Note : Published map is based on Urban Redevelopment Authority''s Master Plan 2008 planning area boundaries and Singapore Land Authority''s 2010 Singapore island profile. The Master Plan 2008 is a forward looking guiding plan for Singapore''s development in the medium term over the next 10 to 15 years and the planning boundaries may not coincide with existing developments for some areas.