Asset Management

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Asset Management -
CITY OF ROCKINGHAM
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Asset Management

• In May 2000 what was my Vision?
• An Integrated Parks and Gardens Asset
• Management System that satisfied, achieved
• and provided for -
• The Local Government Asset Management Guidelines
• Recorded useful information as a Management tool.
• Provided useful information as an Operational
  tool.

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Asset Management

• In considering how to achieve the outcome
• that I wanted I adopted the following
• approach-
• Classified features required to be recorded,
  
• sorted, valued and life cycled into Hardscapes
• vs Softscapes
• Divide each Scape into separate Audits.
• Deal with the results on an individual basis.
• Develop the methodology into degrees of accuracy.
• Acknowledge that the initial vision will change.

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Asset Management

• Hardscapes
• Playground Equipment
• Footpath
• Kerbing
• Pumps
• Reticulation
• Electrical Cabinets
• Gazebos / Shade Structures
• BBQs
• Cricket Wickets
• etc

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Asset Management

• Softscapes
• Area of Turf Grass
• Areas of Natural Bush
• Areas of Planted beds both natural and exotic
• Foreshore Reserves
• Street Trees

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How do they rank in terms of accuracy required to
pick up the asset (Higher the figure the lower
the accuracy-
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Asset Management

• The Irrigation Audit is highest ranked why.
• The Team Leader will expect that the
• reticulation fitter will be able to locate and
• fix a problem solenoid valve situated below
• the ground level without delay.
• The current GPS used by the staff provides
• an accuracy of - 1.5 metres

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Asset Management

• Imagine if the reticulation fitter needed in
  order to
• locate the valve, dig a hole one meter in depth
  and 1.5m radius.
• As his or her Manager I would not request
• these works unless I had an accurate plan.
• On second thoughts there are a couple of
• fitters that?

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Asset Management

• So what is the accuracy required within a Street
  Tree Audit with the following information
  requirements ?
• Quantity of Trees
• Size of Trees
• Health of the Trees
• Register of Significant trees
• Species Type
• Damage caused by the tree (Structural)?

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Asset Management Tree Audit

• Tree Audit Outcome
• An accurate register of all street trees and
• there relationship to Western Power lines.
• With this information we can produce-

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Asset Management Tree Audit

• Pruning Programs
• Tree Replacement Programs
• Street Tree Planting Programs
• Street Tree Removal Programs
• Assist in calculating our Urban Forest and its
  worth in terms of the ecosystem.

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Audit Design Methodology Determination

• Hardcopy Field Inventory
• Formal survey
• GPS/Palmtop

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Initial Brief
To develop a desktop\web based GIS application to
facilitate-

• Interactive interrogationanalysis and reporting
  on the asset audits
• Tracking of maintenance/capital works and work
  orders
• Development of future works budgets
• Reserve Design
• Public access via WWW to selected information
• Recreation planning/allocation

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EVOLUTION
Project evolved to concentrate primarily on-

• Persistent database design
• Audit implementation design

WHY? Opportunistic involvement in data
collection revealed many assumed 11
relationships were in fact many to many Intimate
relationship between application design and data
requirements.
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Design Overview
Desktop Analysis

• Determine Requirements/Outcomes
• Review hardcopy recording sheets
• Develop initial Entity Relationship Diagrams
• Design of persistent database
• Determine KEY entity attributes
• Design composite tables
• Develop short code lists (pick lists)

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Design Overview
Desktop Analysis

• Determine appropriate background Cadastre themes
  (e.g. Road Reserves / Allotment / Zoning
  maps/Western Power transmission detail)
• Convert all layers to WGS 84 Lat/Long (HGIS
  requirement)
• Export from Mapinfo in Mid/Mif format
• Transfer resulting Mif/Mid files to Palmtop
  (Lablink)

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Design Overview
Palmtop Procedures

• Import into HGIS
• Conduct survey
• Download captured attribute data to desktop

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Design Overview
Desktop Analysis

• Import Mif/Mid files back into Mapinfo
• Use scripts to distribute the composite table
  data into their respective base tables within the
  persistent database.
• Generate appropriate management reports
• Review entity and persistent database structure
  and relationships.
• Continue development of GIS application

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Relational Vs Absolute Positioning

• Within desktop GIS environment it is CRITICAL
  that the displayed relationships between features
  faithfully reflects the physical reality .
• In practice GPS is rarely used as mechanism for
  re-location (e.g. street trees use street
  address to locate target stem)
• Many attribute relationship are intolerant of 1
  2 metre confidence intervals (consider pathways
  with widths of 2m, transmission wire width
  sprinkler spacings etc)

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IMPLICATIONS FOR GPS
GPS 1m Resolution

• Identify all entities for which relative
  positioning is more important than absolute .
• Import from existing sources as much
  pre existing spatial data of independent
  attributes as possible (e.g. Western power
  transmission data in tree audit).
• Turn off GPS and use GPS software in manual data
  capture mode for dependent attribute (e.g. tree
  location).

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IMPLICATIONS FOR GPS
GPS 1cm Resolution

• Proposal is to purchase 1cm horizontal and 1.5 cm
  vertical resolution GPS unit at total cost of 74
  000
• Identify all key entities.
• Use GPS to capture locations of ALL key
  features (eg Transmission pole location and
  midline of overhead lines say for tree audit).
• This ensures internal relational consistency.
• What about consistency with true data custodian
  (eg Western power.)

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IMPLICATIONS FOR GPS
Historical Perspective

• 10 years ago Corporations had solid ,
  reliable datasets but there exist poor tools for
  interactive data interrogation/display.
• Today GIS software/computing capacity is
  relatively cheap and abundant but due to
  budget/staff constraints our underpinning data is
  probably in its worst state for some time.
• Perhaps its time for us to put aside our our GIS
  software tools and return to what for many of us
  is our primary Corporate responsibility and that
  is the acquisition and provision of reliable,
  robust corporate data.

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