This document discusses road asset management and maintenance reform in the Republic of Moldova. It outlines the need to collect inventory, condition, and traffic data to inform planning and investment strategies. Specific recommendations include developing an inspection manual to standardize condition data collection, calibrating the data to the HDM-4 model, and purchasing equipment to monitor the national and secondary road network. The document also provides guidance on collecting the appropriate level of detail needed for network- versus project-level analyses to support maintenance program and project decision making.

1. Design and Implementation of Road Maintenance Reform. Republic of Moldova
Hamid Zarghampour
2010-11-26
Moldova
Planning using HDM

2. Design and Implementation of Road Maintenance Reform. Republic of Moldova
Asset Management today
 Set Goals and Objectives
 Collect Inventory and Condition Data
 Rates of Deterioration
 Performance Standards & Measures
 Life-Cycle Cost Analysis
 Investment Strategies
 Programs, Projects, and Practices
 Monitoring Feedback and Adjustments

3. Design and Implementation of Road Maintenance Reform. Republic of Moldova
For any kind of planning (programme, Project)!
We need Data/Information:
Road Network
Work standards
Traffic data (Vehicle Fleet)

4. Design and Implementation of Road Maintenance Reform. Republic of Moldova
Before 1 December 2010
We need
- More than 1? If so:
- SPECIFY
- Visualizing section’s conditions
- Map (GIS)
-Verify
-Cost estimates
-Maintenance activities
-Routine
-Periodic
- Rehabilitation
- Terminology
- VF available
- Previous studies?
- Purchase of new traffic counter
will be recommended

5. Design and Implementation of Road Maintenance Reform. Republic of Moldova
GIS
Data collection
Evaluation
0-500 500-1500 1500-4000 4000-7000 7000-
0
20
40
60
80
100
120
Systems
Asset Evaluation
Cost-Benefits
Ministry, RA, RU
Condition Data and analysis
Visual inspections

6. Design and Implementation of Road Maintenance Reform. Republic of Moldova
Condition Data and analysis
Need for Inspection Manual
- Course will be recommended
IRI
Purchase of new
equipment will be recommended
-For this study:
- 900 km of:
-National and Secondary roads
- HDM 4
- Purchase will be recommended
- Overview next week:
- Programme
- Project
− Modelling RN
− Review results
− Writing report
Next week
Script for selection of
Homogenous sections
is available

7. Design and Implementation of Road Maintenance Reform. Republic of Moldova
Information, Data
 What kind of information do we need?
 It is always dependent on:
­ What decisions do we need to make?
­ What information/data are required to make these decisions?
­ Can we afford to collect the data?
­ If it needs updating, can we afford to keep data current over time?
 Guiding Principle
 Collect only the data you need!
 Collect it only when you need to!
 The level of detail should be appropriate for the decisions being
made:
­ Network level data for network level analyses
­ project level for project level analyses

8. Design and Implementation of Road Maintenance Reform. Republic of Moldova
Calibration of Condition Data
For Program Analysis
STEP BY STEP

9. Design and Implementation of Road Maintenance Reform. Republic of Moldova
What to be Calibrated?
Distress
Mode
All
Structural
Cracking
(%)
Wide
Structural
Cracking
(%)
Transverse
Thermal
Cracking
(%)
Ravelling
(%)
No.
potholes
per km
Edge
break (m²
per km)
Mean rut
depth
(mm)
New 0 0 0 1 0 0 2
Good 5 0 0 10 0 10 5
Fair 15 9.5 0 20 5 100 15
Poor 20 15 0 25 20 200 20
Bad 25 19 0 30 50 300 25

10. Design and Implementation of Road Maintenance Reform. Republic of Moldova
How to calibrate?
1. Select Sections in different condition
– Good to Bad using data in existing PMS
– Use Agreed criteria for IRI:
Road Class
Paved Roads Unpaved Roads
Good Fair Poor Bad Good Poor Bad
National Roads 4 6 8 >8 - - -
Secondary 5 7 9 >9 6 8 10

11. Design and Implementation of Road Maintenance Reform. Republic of Moldova
2- Inspect selected section in
different condition as follows:
a) Randomly choose 3 sections of 100 m
I. Each section has to be marked
GPS, or other means
b) Use inspection manual, describe
distresses
c) Fill the protocol for each section of 100
I. Severity
II. Propagation of distresses
d) Estimate distresses severity and
propagation and calibrate HDM4
configuration

12. Design and Implementation of Road Maintenance Reform. Republic of Moldova
2. Inspection Manual
 Shall contain the following
1. Definition of different distresses
– Cracking along wheel patch
– Alligator cracking
– thermal Cracking, etc…
1. Severity
– Rutting:
– S1 < 10 mm
– S2 >10 and < 20 mm
– S3 > 20 mm
1. Propagation/distribution/Spreading
– Local < 10% of the total section’s
length
– Moderate > 10% <50% of the total
section’s length
– General > 50% of the total section’s
length
4. Method of measurement
5. Protocol for inspection
(papers or digital)
Exam
ple
Exam
ple
Exam
ple
Exam
ple

13. Design and Implementation of Road Maintenance Reform. Republic of Moldova
Inspection Manual
Recommendation
1- Study Existing Manual,
2- Identify described distresses in the existing manual and compare with
default distresses in HDM4
3- Prioritize which distresses can be measured today
4- Method of measurements for each distresses

14. Design and Implementation of Road Maintenance Reform. Republic of Moldova
Data collection for Project analysis
 For Project analysis we need
detailed data
 Working only on the section o be
repaired
 Identifying distresses following the
Inspection manual Exam
ple
Project 2
km
Section
A-B