The World Road Association
Development of HDM-4
Neil Robertson
PIARC ISOHDM Project Coordinator
The World Road Association
What is HDM-4?
Purpose of HDM-4
The Highway Development and ManagementSystem is a decision tool to help youinvestigate your road investment choices.
Scope of HDM-4
•providing, maintaining and upgradingurban and rural roads and highways
•investigating the effect of vehicles,traffic characteristics, road user costs
•investigating the social andenvironmental effects of investments
•investigating long term issues whicharise over asset life cycles.
The World Road Association
Supporting Road Investment Decisions
The World Road Association
Progress in HDM Technology
The HDM Predecessors
HDM-III Applications 1986 - 1999
•Analyse and justify road investments
–new works
–maintaining existing roads
–life cycle economic focus - Benefits and Costs
–road assets, demand, work options and costs, user costs
•Types of analysis
–project level - high level design, justification
–network level strategies & programs
•Primarily decision support to Loan Programs
•In use for more than 10 years
ISOHDM and HDM-4
ISOHDM
The International Study of HighwayDevelopment and Management Tools
is developing
HDM-4
The Highway Development and ManagementSystem
- a road investment analysis system with global application.
The ISOHDM Study
•Internationally sponsored
•Objectives
–Update the knowledge and technology
–user friendly
–use in funding agencies & road authority PMS
•In progress for 7 years
–technical studies
–software development and testing
–software release, support and training
•PIARC leading the implementation phase
Levels of HDM Technology
Knowledge Base
Models
Software
RUE
SEE
RDWE
Models
HDM-4 Product Releases
•Version 1.0 released February 2000
•HDM Series Volumes 1 - 5
•HDM-4 software
•Case studies database
•English, French & Russian editions
•Version 1.1 update August 2000
•major software maintenance release - error fixes
•Version 1.2 update April 2001
•major software maintenance and enhancement release
•Spanish edition released
•Version 2.0 - target 2002
HDM Series Collection
HDM-4
HDM-4 is based on a well established economicanalysis framework
Models derived from large scale field experimentsconducted world-wide
Significant change in scope and softwaretechnology from HDM III
International standard tool for road sector planningand management
Provides a common framework for analysis of roadmanagement options
What has Changed from HDM-III ?
•Types of Analysis & Outputs
•Road Deterioration Models
•Road User Effects Models
•Data
•Dimensions
•Road works
•Social and Environmental Effects Models
•Software
•HDM-4 is superceding HDM-III
Analysis Tools
Project
Program
Strategy
File Converter
transfer data
to external
systems
File Converter
transfer data
to external
systems
Model librariescan be used in
other systems
Core Data
Vehicle Fleets
Road Networks
Road Works
Projects
Programmes
Strategies
Core Data
Vehicle Fleets
Road Networks
Road Works
Projects
Programmes
Strategies
External
Systems
Databases,
PMS, etc.
HDM-4 System ArchitectureHDM-4 System Architecture
RDWE : Road Deterioration and Works Effects
RUE : Road User Effects
SEE : Safety, Energy and Environmental Effects
PMS : Pavement Management System
RDWE : Road Deterioration and Works Effects
RUE : Road User Effects
SEE : Safety, Energy and Environmental Effects
PMS : Pavement Management System
RUE
SEE
RDWE
Models
Road
Network
Vehicle
Fleet
HDM
Config.
Data Managers
Road
Works
The World Road Association
Implementation in 2001
Distribution of Regional Interests
Distribution of Industry Sector Interests
Implementation
•Growth of user information and services
•HDM-4 Information Centre
•Training and dissemination activities
•User Group and SIG activities
•ISOHDM / user interactions
•publications
PIARC HDM-4 on the Web
http://hdm4.piarc.org
A source of:
•support information for HDM-4 users
•how to obtain the products
•training opportunities
•user feedback
•documents
•download facilities
Training Programs
•promoting T&D Strategies (country / regional)
•Asia, Latin America, Africa
•promoting growth of local training and support services
•65 training and dissemination events 31 countries
•Western & Eastern Europe, North Asia, Middle East, South and CentralAfrica, South Asia, South East Asia, Oceania, North and South America
•user information resources
•training materials
•local customisation data
•case studies
•distance learning activities
Training Achievements
Training Achievements
Regional User Groups
•Must be regionally managed, responding to local needs
•PIARC ISOHDM will provide support
•purpose - according to local needs
–sharing information
•Regional meetings
•local practice guides
•web site
•data sharing
–local self-help support circles
–coordinating calibration efforts
–assisting integration and transition efforts
–identifying R&D requirements
–coordinating interaction with ISOHDM Secretariat
User Support
•First contact user support
•Technical user support
•User community support
–user group interactions
–user discussion list (email)
–user meetings
•General information dissemination
–HDM-4 web site
–PIARC dissemination
–publications
HDM-4 Applications
Example Applications
•Policy & strategy studies
–Budget effects of minimum network standards
–Allocation for competing needs (eg road classes)
–Road use charging for establishing Road Funds
–Impact of transport policy on energy consumption
•Works programming options
–applying fixed work standards
–economic optimum constrained by budget
–program optimised to a network performance standard
Example Applications
•Project preparation analysis
–Selection from design alternatives on life cycle cost
•maintenance and rehabilitation options
•widening and geometric improvement options
•pavement upgrading and new construction
–economic justification of project proposal
•Research Studies
–Network implications of new vehicles
–Network impact of axle load limits
–Effectiveness of alternative road maintenance practices
–Impact of maintenance and rehabilitation standards
Policy Formulation
Road pricing
–fuel levies
–congestion charges
–weight-distance charges
Vehicle regulations
–axle load limits
–energy consumption, vehicle emissions & noise
Engineering Standards
–sustainable road network size
–pavement design and maintenance standards
HDM-4 Applications
•Road sector policy studies
•Strategic planning of road network development,maintenance and funding requirements
•Optimal allocation of funds to competing needs
•Formulation of national road sector fundingprogrammes
•Economic appraisal of individual road projects
•Research studies
Analytical Framework
Predicts road network performance as afunction of:
–Traffic volumes and loading
–Road pavement strength
–Maintenance standards
Quantifies benefits to road users from:
–Savings in vehicle operating costs (VOC)
–Reduced road user travel times
–Decrease in number of accidents
–Environmental effects
Project Level Outputs
•Road condition indicators
•Road user cost details
•Energy & emissions
•Economic indicators
•Sensitivity analysis results
•Scenario analysis
Multi-year programme
RankRoad SectionkmDistrictWork TypeYear $m$m
1N1-220.5 2Resealing 20005.45.4
2N4-723.5 7Overlay 40mm200010.916.3
3N2-512.5 5Reconstruct20008.624.9
4R312-130.0 4Widen 4 lane200031.456.3
5R458-336.2 3Overlay 60mm200016.372.6
::: :::::
1N4-1632.1 6Reconstruct200122.822.8
2R13-2322.4 4Overlay 40mm20019.732.5
3N521-545.2 2Widen 4 lane200141.373.8
::: :::::
1N1-630.2 4Resealing20028.28.2
2N7-917.8 3Overlay 60mm20029.217.4
3F2140-856.1 1Reconstruct200234.952.3
::: :::::
Network Condition Forecasts
Effect of funding levels on network performance
Feeder
Roads
$30m/yr
Secondary
Roads
$35m/yr
Trunk
Roads
$20m/yr
Effect of budget levels
100%
80%
50%
AnnualBudget
Target
Optimal budget requirements
The World Road Association
What is HDM-4 capable of?
Features of HDM-4
•Road Deterioration &Works Effects Modelsfor current practice:
–bituminous concrete
–cement concrete
–granular
–stabilised
–unpaved
•Road User EffectsModels
–motorised & non-motorised traffic effects
–wide range of vehicletypes
–vehicle operating costs
–time costs
–congestion effects
Features of HDM-4
•Safety, Environment& Energy Models
–accident costs
–emission effects
–total energy balance
•Customise to localrequirements
–calibrate models tolocal experience
–establish local defaultdata settings
–define aggregate dataclasses
–localise reports
Features of HDM-4
•Assess the worth ofroad investments
–life cycle analysis
–economic return
–total energy balance
•Spectrum of applications
–broad policy studies
–works programming
–detailed project studies
–research studies
•Spectrum of extent
–road networks
–single section
Features of HDM-4
•User interface
–Familiar and intuitive(Win95/98/NT)
–Data managementfunctions
–User-definable reportsand standard templates
•User documents
–overview
–applications
–software
–technical
–calibration
The HDM-4 Products
•HDM-4 software onCD ROM
•Case study data sets
•HDM Series documents
