Asset management

Cover of Consistency in Approaches to Road Network Segmentation and Data Aggregation: Review of Current Practice
Consistency in Approaches to Road Network Segmentation and Data Aggregation: Review of Current Practice
  • Publication no: AP-R276-05
  • ISBN: 1 921139 07 2
  • Published: 19 October 2005
A general literature survey and a user survey was conducted to obtain information on existing data aggregation methods and their status in Australia and New Zealand. The responses to the survey indicated that all agencies use or are close to choosing a pavement management system to manage their road network more efficiently. The main objective of this report is to summarise the results of the questionnaire and complement it with an overview of overseas practice.
  • AP-R276/05 Consistency in Approaches to Road Network Segmentation and Data Aggregation - Review of Current Practice
  • EXECUTIVE SUMMARY
  • CONTENTS
  • TABLES
  • FIGURES
  • 1. INTRODUCTION
  • 2. PROJECT BRIEF
  • 3. BACKGROUND
    • 3.1. Segmentation
    • 3.2. Aggregation of the data
    • 3.3. Aggregation of the results of the economic analysis
  • 4. LITERATURE SURVEY AND OVERSEAS PRACTICE
    • 4.1. Definition of homogeneous section
    • 4.2. Characteristic value
    • 4.3. Determination of homogeneous section length
    • 4.4. Data aggregation
    • 4.5. Aggregation of the results
    • 4.6. Transverse data aggregation
    • 4.7. Documented procedures
  • 5. CURRENT AUSTRALIAN AND NEW ZEALAND PRACTICE
  • Q1 Participating agencies
  • Q2 Inventory level
  • Q3 Work programming level
  • Q4 Data collection length
  • Q5 Visual data
  • Q6 Business rules for historical recording of treatments
  • Q7 Analysis by sub networks
  • Q8 Business rules for segmentation
  • Q9 and Q10 Number of projects
  • Q11 Tools used to segment the network
  • Q12 Condition parameters used for defining homogeneous segments
  • Q13 Non-condition parameters used to determine homogeneous segments
  • Q14 Satisfaction with the current segmentation
  • Q15 Mathematical methods of data aggregation
  • Q16 Mathematical method to aggregate non-condition data
  • Q17 Representation and use of old data
  • Q18 Data aggregation collected at the same chainage but on different lanes or wheel paths
  • Q19 Satisfaction with the current aggregation method
  • Q20 Overview of current state of PMS implementation
  • Q21 Overall experience with developing project level work programs from PMS outputs
  • Q22 Future developments
  • 6. KEY FINDINGS
  • 7. CONCLUSIONS AND RECOMMENDATIONS
  • APPENDIX 1 QUESTIONNAIRE
  • REFERENCES
  • INFORMATION RETRIEVAL