Land Market Monitoring for Smart Urban Growth

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Land Market Monitoring for Smart Urban Growth

• Gerrit Knaap
• Professor and Director
• National Center for Smart Growth
• gknaap_at_ursp.umd.edu

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Monitoring Practice and Potential

• The bar-code revolution in retail trade
• Traditional Practice in Land Use Planning
• Make plan, implement plan, make new plan
• The Potential for Monitoring in Land Use Planning

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Why Monitor Land Markets

• Increasing Public Intervention
• Increasing Technical Capacity
• Geographic information systems
• Computerized assessors data
• Remote sensing
• Increasing State Mandates

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The Purpose of Monitoring

• To describe (to know)
• To analyze (to understand)
• To manage (to make decisions)

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Monitoring forInventory Management

• Land use planning as an inventory problem
• Fixed interval systems
• Revise plans every 5 years
• Fixed order systems
• Revise plans when land runs out
• Variable interval and order systems
• Revise plans every 5 years or when land runs out,
  which ever comes first

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Time Driven Inventory
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Event Driven Inventory
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Choosing the Reorder Level

• In an event-driven system of inventory

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Designing aLand Monitoring System

• The land development process
• The perpetual inventory system
• The role of GIS

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The Land Development Process
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A Perpetual Inventory System

• Stock
• Event
• Additions
• Subtractions
• Balance

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Optimal Data Structures

• The fantasy of parcel-based GIS
• The limitations of grid-based systems
• The logic of homogeneous geographic units

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Critical Data Layers and Events

• Critical Layers
• Tax lots, land use, zoning, plan designation,
  government jurisdictions, environmental features,
  sewer and road networks, parks, schools,
• Critical Events
• Building permits, subdivisions, annexations, plan
  and zone changes, infrastructure investments,

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Growth Management as an Inventory Problem

• Too much land, urban sprawl
• Too little land, land price inflation
• Monitoring not needed in traditional planning
  practice
• Monitoring needed in time-driven systems
• Greater Efficiencies in time-driven system