Keywords
agent-based land use model, amenity migration, land subdivision, rural land use
Start Date
1-7-2010 12:00 AM
Abstract
To a significant extent rural Australia is transforming into multifunctionallandscapes. Amenity migration (i.e. movement of people from metropolitan to ruralsettings) is a major driving force of this transition in many areas. However, the effects ofamenity migration on the receiving landscapes are not yet fully understood. Agent-basedland use modelling helps unravel the complex spatio-temporal relationships that affectlandscape response to change from amenity migration. A land subdivision module isessential for a complete agent-based land use model developed for these landscapesbecause the land sold to in-migrants are lots that are subdivided from much larger tracts. Inthis paper we describe a land subdivision automation procedure and its implementation fora rectangular land system. It takes into account the dimensions of the candidate parcel,minimum lot size, and initial street arrangement for both target and neighbouring parcels.Subdivision layouts can be generated either to achieve the maximum number of lots or anoptimal balance between number of lots and new streets. This module provides subdivisionlayouts for all candidate parcels in the land use model. And it potentially serves as anintegral component in many other models, as well as a stand alone tool for generatingsubdivision layouts, complex polygon splitting and studies that attempt to establishrelationships between land subdivision and habitat fragmentation.
Parcel subdivision automation for agent-based land use modelling
To a significant extent rural Australia is transforming into multifunctionallandscapes. Amenity migration (i.e. movement of people from metropolitan to ruralsettings) is a major driving force of this transition in many areas. However, the effects ofamenity migration on the receiving landscapes are not yet fully understood. Agent-basedland use modelling helps unravel the complex spatio-temporal relationships that affectlandscape response to change from amenity migration. A land subdivision module isessential for a complete agent-based land use model developed for these landscapesbecause the land sold to in-migrants are lots that are subdivided from much larger tracts. Inthis paper we describe a land subdivision automation procedure and its implementation fora rectangular land system. It takes into account the dimensions of the candidate parcel,minimum lot size, and initial street arrangement for both target and neighbouring parcels.Subdivision layouts can be generated either to achieve the maximum number of lots or anoptimal balance between number of lots and new streets. This module provides subdivisionlayouts for all candidate parcels in the land use model. And it potentially serves as anintegral component in many other models, as well as a stand alone tool for generatingsubdivision layouts, complex polygon splitting and studies that attempt to establishrelationships between land subdivision and habitat fragmentation.
