Integrating Pavement and Maintenance Management Systems for Performance Based Contract

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Integrating Pavement and Maintenance Management
Systems for Performance Based Contract
Rotorua 2009
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Contents

• Process Design
• System Architecture
• Using System for ATP Development
• Conclusion

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Maintenance Planning Management
Business Process Defined in Asset Management Plan
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Levels of Planning
Strategic analysis is undertaken for entire road
network to define Long-term Maintenance Standard
Level of Service Not Project preparation is
carried out to compare and justify the benefits
and risk associated with implementing alternative
(often innovative) pavement treatment option.
Preparation of a 10-year Programme and annual
treatment program (ATP) is the most widely used
level of analysis.
Same dTIMS System is used although there is minor
difference in the Setup Used
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Contents

• Process Design
• System Architecture
• Using System for ATP Development
• Conclusion

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Software Modules
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AMIS Suits

• AMIS scheduler - to organise the inspections and
  cyclic works programmes in accordance with
  contract inspection frequencies and cyclic
  programmed works
• AMIS mobile - to collect spatially aware data in
  the field
• AMIS connect - to synchronise field data capture
  with the central AMIS database
• AMIS reporter - provides web based access to
  customised reports

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AMIS Mobile Spatial Network

• Network maintenance hierarchy colour coded
• Non contract roads displayed for visible reference

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AMIS Mobile Network Inspection

• General Inspection

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AMIS Mobile Network Inspection

• Defect Logging

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Exor Modules

• Public Enquiry Manager is used to log, track,
  manage and resolve complaints and enquiries
  related to the contract
• Maintenance Manager manages workflow process of
  the day-to-day routine maintenance tasks and
  programmed activities performed on assets.

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Maintenance Manager

• Functions include
• Scheduled asset and network inspections
• Defects identification and treatment
  recommendation
• Assignment of relevant response time
• Estimation of level of efforts / bill of
  quantities
• Generation of Work Orders and records the
  completion of each defect repaired
• Progress monitoring of available budgets

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dTIMS CT
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AMIS - Reporter
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Dash Board
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Contents

• Process Design
• System Architecture
• Using System for ATP Development
• Conclusion

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Program Development Flow Process
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Data for ATP

• Provided by RTA (RAMS)
• Inventory (Annexure 19)
• Pavement condition (2007 Oct)
• Roughness, Rutting and Texture Depth
• Cracking
• Pavement strength (2007 Aug)
• Maintenance history (AMIS Database)
• Inspections
• Defects / Treatment History
• Visual condition assessment during field
  validation process

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Data Processing / Review

• This process is undertaken annually
• To validate data provided by RTA for completeness
  and consistency
• Analysis of current and historical data for
  calibration of assumed deterioration rates and
  treatment resets
• Reporting the pavement performance measures

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Trend Analysis
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Predictive Modelling

• Based on 100m lane sections
• Model Parameters Used
• Analysis parameters (e.g. condition data,
  maintenance history, traffic volume)
• Rate of condition deterioration
• Appropriate treatment types and unit rates
• Treatment triggers and condition resets
• Optimisation to achieve PPM values
• Analysis period to cover the term of contract
• Output
• List of candidate sites
• Forecasted PPM values

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dTIMS CT is used for Predictive Modelling
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PPM Forecast (AC_FLEX_3)
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PPM Cumulative Graph (AC_FLEX_3)
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Programmed Work
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Candidate Sites

• Generated using Models considering
• Latest available data (Inventory, Condition,
  Pavement Strength etc.)
• Maintenance history / issues
• Feedback from RTA (Preference sites)
• Previously committed sites (Excluded)
• Sites identified for special treatments (i.e.
  skid resistance, bus lane surfacing)

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Field Verification(of Candidates Sites)

• Network drive through to validate
• Inventory and Condition data consistency
• dTIMS treatment appropriateness
• Timing of prioritisation
• Immediate intervention
• Shorter term intervention
• As per dTIMS selection
• Longer term intervention
• Indefinite deferral

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AMIS MOBILE is utilised in the field validation
process
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(No Transcript)
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Review and Consolidation

• Grouping of 100m sections into project length
  block by Characteristic treatment and timing

Better to do at same time

• These blocks Committed in dTIMS to confirm PPM
  values compliance

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GYPSY CAM was very useful for the consolidation
process
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Pavement Design

• Finalised flexible pavement sites
• Are investigated and classified according to
• Surface deficiencies (e.g. ravelling, rutting,
  cracking)
• Structural deficiencies (e.g. fatigue,
  deformation, pumping)
• Structurally deficient pavements are further
  tested and designed using
• Falling Weight Deflectometer (FWD) and validating
  coring
• EfromD3 and Circly 5.0
• AC Rigid (Asphalt surfacing on cement concrete
  base) are inspected to decide if slab
  stabilisation/replacement is required

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Annual Treatment Programme
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Job Scoping

• Job Walk Through to define
• Site constraints
• Traffic and traffic management
• Localised geometry, topography, geology
• Adjacent pavements
• Shear
• Constructability
• Layering
• Inter shift ramping
• Preceding works
• Work plans (shift by shift)

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Planning Board

• Preceding activities
• REF
• Traffic Control Plans
• Road Occupancy Licence
• Resident Notification
• Sequence of activities
• Interdependency
• Durations

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Records

• Accurate data collection of completed works
• Lot Packages for QA purposes
• Data managed and reported through AMIS

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AMIS - Data Management
Include information of pre-work, ancillary and
subsequent treatments
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Conclusions

• Fully integrated and configurable AMIS system
  well customised to local conditions can help to
  manage a performance based contract more
  efficiently
• The system design should be based on well defined
  and comprehensive business process.
• Economy and better performance can be achieved
  with using various off-the-self software (best
  available for specific purposes) together with
  in-house developed software to fill the gaps
• Both process and software system need ongoing
  refinements to ensure the issues identified and
  lesson learnt could be utilised.
• Strong in-house team consisting of asset
  management specialists, system analysts and
  developers working side by side with operational
  personnel could provide the best results

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Thank You