Spatial pattern analysis using spatial metrics: A case study in Surabaya, Indonesia

Surabaya city tends to develop rapidly indicated by increasing built-up area of 1554.61 hectares in last 5 years. Land use development and its tendency in several cluster areas showed how spatial patterns are formed. This research aims to analyse spatial pattern of Surabaya city development. The analysis included 2 stages those are identifying the land use changes and then analysing spatial pattern using spatial metrics. The result indicates that from 2011 to 2016, land use changed in East and North Surabaya area included public facilities, commercial area, warehousing, industrial area, and mostly settlement area which is increased by 708.51 hectares in East Surabaya and 23.24 hectares in North Surabaya. In West Surabaya area, warehousing and industrial area is significantly develop and increased by 289.16 hectares. Commercial area are growing rapidly in Central and South Surabaya area which is increased by 89.56 hectares in Central Surabaya and 137.46 hectares in South Surabaya. Then, the spatial metric calculation shows that land use development in all units area tend to follow their existing land use, except South Surabaya area whose tends to develop in dispersal pattern. This spatial pattern is homogeneously develop and still relatively compact.