SANRAL ASSET MANAGEMENT OVERVIEW - AAPA Q · SANRAL Routine Maintenance Cost -Crack Sealing,...
Transcript of SANRAL ASSET MANAGEMENT OVERVIEW - AAPA Q · SANRAL Routine Maintenance Cost -Crack Sealing,...
SANRAL ASSET MANAGEMENT OVERVIEW
Louw Kannemeyer
South African Road Network
Un-Proclaimed Roads = Public roads not formally maintained by any Authority
Authority Paved Gravel Total
SANRAL 16,170 0 16,170
Provinces - 9 48,176 136,640 184,816
Metros - 9 51,682 14,461 66,143
Municipalities 37,691 302,158 339,849
Total 153,719 453,259 606,978
Un-Proclaimed (Estimate) 140,000 140,000
Estimated Total 153,719 593,259 746,978
Major culverts and bridges = 8 000
Description Non Toll Agency Toll
BOT Total
Dual Carriageway
610
520 443 1 573
4-Lane Undivided
11 299 240 550
2-Lane Single
12 429 1013
605 14 047
Total 13 050 1 832 1 288 16 170 % of SANRAL Network 81% 11% 8%
NATIONAL ROAD NETWORK (km)
Total RSA Road Network Estimated to be 750,000 km
Sunninghill
Houghton
Eish !!! How Did This Happen ?
Available Condition Data
Authority Paved Gravel Total
Length Data Length Data Length Data % Data
SANRAL 16,170 16,170 0 0 16,170 16,170 100
Provinces - 9 48,176 47,088 136,640 103,733 184,816 150,820 82
Metros - 9 51,682 40,737 14,461 1,789 66,143 42,527 64
Municipalities 37,691 10,866 302,158 2,124 339,849 12,990 4
Total 153,719 114,861 453,259 107,646 606,978 222,507
% Data 75 24 37
If the extend and condition of your network is not known, how do you make sound road investment decisions.
Paved – Provincial + SANRAL
Type Year V-Good Good Fair Poor V-Poor Length 2004-08 5,303 24,220 21,570 8,399 3,766
% 2004-08 8.38% 38.29% 34.10% 13.28% 5.95%
Gravel – Provincial
Type Year V-Good Good Fair Poor V-Poor Length 2004-08 1,981 13,863 35,344 33,219 19,327
% 2004-08 1.91% 13.36% 34.07% 32.02% 18.63%
CONDITION SUMMARY
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
SANRAL - Paved
Provinces - Paved
Metros - Paved
Municipalities - Paved
Provinces - Gravel
Metros - Gravel
Municipalities - GravelA
uth
ori
ty
Percentage of Network
Very Poor (km)Poor (km)Fair (km)Good (km)Very Good (km)
As they say in the movies – “Houston we have a problem”
Why is it Happening – Pavement Design ?
0
20
40
60
80
100
2008 2013 2018 2023 2028
Year
Ro
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ion Good
Fair
Poor
Very Poor
Maintenance Actions
No Maintenance
Moisture Ingress
(Typically Designed for Traffic Expected over 20-30 Years)
Road Deterioration due to Traffic Loading & Environment
SA Pavement Design Requires Performance of Preventative Maintenance
Northern Hemisphere
Waterproof Layer
Local Street
Farm To Market
Typical National / Interstate Road
Increased Number of Heavy Axles Repetitions over 20-30 year Design
Life
South Africa
Why is it Happening – Pavement Design ?
Why is it Happening – Pavement Age
Please Note: 75% of Network Older than Original 20 Year Design Life
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Natio
nal R
oad
Netw
ork
Leng
th (C
arria
gew
ay k
m)
Year
Pavement Age Trend
>25 yrs 21-25 yrs 16-20 yrs 11-15 yrs 6-10 yrs 0-5 yrs
Why is it Happening – Axle Loads
Increased Axle Load
Decreasing Layer Strength
Damage Located in Weaker Layers Deeper Down in the Pavement Structure
Why is it Happening – Tire Pressure
Increased Tire Pressure
Decreasing Layer Strength
Damage Located in Surface Layers
New Tire Technology
Increased Tire Pressure
PORT SHEPSTONE
CHIPINGE
DURBAN
BEIRA
FRANCISTOWN
GABORONE
WINDHOEK
WALVISBAY
KEETMANSHOOP
BLOEMFONTEIN
ROUXVILLE
WEPENER
KLERKSDORP
ZEERUST JOHANNESBURG
MAPUTO
LADYSMITH
VOLKSRUST
EAST LONDON
PORT ELIZABETH MOSSEL BAY
OUDTSHOORN
CERES
CAPE TOWN
MESSINA
TZANEEN
SOMERSET WEST
PRETORIA
Wet (>1000 mm/yr)
Moderate (500 – 1000)
Dry (< 500 mm/yr)
Where is it Happening – Rainfall Zones
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100
2008 2013 2018 2023 2028
Year
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What Is The Price We Pay – Government
Repair Cost = X / km
Good
Fair
Poor
Very Poor
3-5 Years
Repair Cost = 6X / km
5-8 Years
Repair Cost = 18X / km
(Ratio 1:6)
(Ratio 1:18)
Please Note: Typical Costs for 11.4m Wide Road in Flat Terrain
Very Poor Condition Poor Condition Good Condition
Good Poor
R 0
R 2
R 4
R 6
R 8
R 10
R 12
R 14
R 16
R 18
R 20
0 2 4 6 8 10 12 14 16
International Roughness Index (m/km)
Roa
d U
ser C
ost (
R/k
m)
Toll Class 1Toll Class 2Toll Class 3Toll Class 4
Based on HDM-4 Modeling
What Is The Price We Pay – Road User
0
0.5
1
1.5
2
2.5
3
3.5
4
1 2 3 4 5 6 7 8
Vehi
cle
addi
tiona
l rep
air a
nd m
aint
enan
ce co
sts [
R/km
]
Road Roughness [m/km]
6th Logistics Survey -2009
Coal Haulage Network
What Is The Price We Pay – Road User
Please Note: Costs exclude fuel, travel time, cargo damage, etc components
Birth/Rebirth of a Pothole ?
New Road - Deterioration over time due to Traffic Loading &
Environment
NO Preventative Maintenance - Crack Sealing - Cleaning Drainage Structures - Cutting of Grass
What Is The Solution – Automatic Pothole Patching?
Nooooooo…. Potholes are the symptom
not the cause… If we strive to become best pothole repairers in
the world .. Then we have lost the plot ...
n Axle Loads – Legal Limits – Effective Enforcement
n Network of Traffic Control Centers
n Operated 24 hours 365 days a year
n Zero Tolerance to offenders
n RTMC
Mantsole TCC – N1 North of Pretoria
9,0 Tons
7,7 Tons
What Is The Solution: Axle Loads - Control
n Tire Pressure – Not Practical to Specify Legal
Limits n Technology Improvements
Driven by Quest for Economic Efficiency
– Improved Design Procedures & Materials Through Research n Heavy-Vehicle-Simulator (HVS)
– 20 Years Traffic in 3 Months – USA, Finland, Sweden, China,
India n Stress-In-Motion (SIM)
Stress-In-Motion
HVS VI+
What Is The Solution: Tire Pressure - Research
www.sapdm.co.za
n Process initiated at RPF -May 2005 n R&R framework - November 2005 n Pavement Performance Information System (LTPP)
– Material Classification Concept – Pavement Number Concept (PN) – 50 Projects Completed – February 2008 – 15 Stabilized Projects Added – February 2008
n Mechanistic-Empirical Analysis System (MEAS) – Phase 1 – Develop Detailed Project Briefs – November 2006 – Phase 2 - Inception Phase (22 Projects) – July 2007 – Peer Review – Phase 2 Reports – November 2007 – Additional SANRAL Requirements – December 2007 – Appointment of Main Service Providers – September 2008
– CSIR Built Environment – Pavement Modelling Corporation – SC Van As Traffic Engineering
n SAPDM Website (www.sapdm.co.za) – May 2009
Historical Overview – SAPDM Revision
n Appointment of Main Service Providers – September 2008
SAPDM Revision – Current Status
Input data: Operating conditions Geometry Pavement structure Materials Traffic Mechanical Visual condition
Data validation and processing: Analysis sections Uniform sections
Data analysis: DCP analysis Deflection analysis Pavement Number
Uniform section report
Network level Project level
PMS/available data: Operating conditions Geometry Pavement structure Materials Traffic Mechanical survey Visual condition
Problem fully characterised?
Graphical user interface (data import): Direct from PMS Import templates
Statistical test frequency criteria: Prescribed list of tests
Satisfied? Additional testing
Remedial action if required
Performance simulation input data
Å
No
No Yes
Yes
Information systems: Traffic volume and axle load Contact stress Environment Materials
SAPDM – Investigation Process Flow
Deterioration models (empirical): Cracking Rutting Ravelling Potholes Edge-break Roughness Texture/skid resistance
Intervention criteria and
works effects
Initialise parameters for recursive analysis
Pavement model: HDM-4 type (SN or PN) and Mechanistic (MLLE or FEM)
Recursive increment step Adjust parameters for: • Operational conditions • Deterioration • Works effects
Å
Output: Condition and deterioration for recursive increment
Output: Maintenance and rehabilitation interventions
SAPDM – Performance Simulation Process Flow
Life-Cycle Economic Analysis: Maintenance Cost, Road User Costs, etc
Progress To Date
• Reports • Nov 2009 = 8 Reports • May 2010 = 21 Reports • Nov 2010 = 30 Reports • May 2011 = 44 Reports
• Field Trials – Ongoing • Environmental Nov 2010 = 41 Sites • Environmental May 2011 = 40 Sites • Material Bulk Samples Nov 2010 = 3 • Material Bulk Samples May 2011 = 3
• Lab Testing – Ongoing • Nov 2010 = 6 Asphalt Mixes - Complete • May 2011 = 1 of 3 Mixes
• Surface Seals – Work Started at TUDELFT FEM 2D/3D
• Concrete / Block Pavement Integration – Work Started
What Is The Solution – Preventative Maintenance !
SANRAL Routine Maintenance Cost - Crack Sealing, Cleaning Drainage Structures, Cutting of Grass - R 4.50 m2 / per km / year SANRAL Reseal Cost - R70 – R130 m2 / 10 year
SANRAL Pothole Repair Cost -R 700 – R1500 / m2
-SANRAL In-situ Recycle -R 250 – R500 / m2
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2008 2013 2018 2023 2028
Year
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Good
Fair
Poor
Very Poor (Typically Designed for Traffic Expected over 20-30 Years)
Two Roads, same condition & traffic – but only budget for one ?
A B
What is Asset Management ?
Asset Management = Planning
Degree of Planning
Rou
tine
Mai
nten
ance
Cos
ts P
er Y
ear (
R/m
2 )
Preventative Maintenance Reactive Maintenance Total Maintenance
Optimal Zone
At SANRAL = R 4.50 / m2 per year
Option 1 - Employee Mr Bones
… but eish! – he was not big on roads
Option 2 - Asset Management System Building Blocks/Puzzle Pieces of AMS
• Policy/Procedures – Principles/Rules to Guide Decisions and achieve rational outcomes – what, where, when, how.
• Funding – Financial resources for operation and results implementation. • People - People make decisions, the rest are just to support the process. • Hardware – Road Survey Equipment + IT Infrastructure. • Software – Computer based data Analysis and Storage Tools. • Data – Knowing what you have, its condition and performance Trend.
Hardware Software
Data
People Funding
Policy/ Procedures
• For asset management to be successful all the “pieces of the puzzle” need to be in place in a “balanced equilibrium”
• It does not help you have the most advance survey vehicle but no means to effectively store and analyse the data, or
• Have the most sophisticate software, but the quality of your data is suspect !
• Without Funding and People – Nothing will happen !!!
Hardware
Software
Data
People
Funding
Policy/ Procedures
Option 2: Asset Management System - Success
35 yrs of Pavement Management – All
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1970 1975 1980 1985 1990 1995 2000 2005 2010 2015
Year
Rel
ativ
e Le
vel o
f Dev
elop
men
t
Policy Funding People Hardware Software Data
AMS Hardware - Pavement Data n Various condition parameters collected using SANRAL
Road Survey Vehicle: – Roughness – how bumpy is the road – speed, wear, etc – Rut Depth – how much water pond on surface - safety – Macro Texture – assist vehicle tire to drain water – safety,
noise – Cracking – how much water will get in - deterioration – Alignment (DGPS) – Speed, Fuel Consumption, etc – ROW Video – Road Signs, Section Measurements, etc – Annual Surveys at 100 km/h
AMS Software – Road Inventory
Semi-Automated Data Analysis for data extraction
AMS Software - Real-Time Crack Analysis
n Real-time analysis during recording !!!
Micro-Texture (mm) – Micro-texture is associated with the gritty sandpaper
feeling or lack thereof when touching the pavement surface. It affects the level of surface friction at all speeds for dry and wet conditions.
– Measured using SCRIM or Griptester
– 3-8 Year Surveys, Low Macro Texture Areas
Macrotexture Microtexture
AMS Hardware - Pavement Data
n Structural Strength (Surface Deflection (mm)) – Measured using Falling Weight Deflectometer (FWD) – Simulates
truck wheel traveling at 80 km/h over road pavement surface – Surface deflection bowl is analyzed to establish the structural
strength and remaining life of a pavement – 100 % of the Network @ 200 m intervals every 5 years
AMS Hardware - Pavement Data
Traffic Speed Deflectometer (TSD)
Coming 1st Quarter 2012
3D Laser Point Cloud 3D Pavement Imaging
AMS Data - Bridges
n Visual Assessments (DER) – Bridge condition is assessed through a standardized
procedure to determine the Degree, Extent and Relevancy. – Bridge repairs are prioritised according to severity and
Relevancy of defects – 3 to 5 year cycle – 8000 Bridges & Major Culverts
0
AMS Data – Traffic
n Traffic Event Logger (TEL) – Inductive Loop Based Technology (1000)
Ø + Piezo (200) Ø + WIM (45)
– Cluster Monitoring – 1 to 3 year for Secondary Stations
AMS Data -Vehicles Operating Costs
– Up to 90 % of Total Transportation Costs – Vehicle Operating Costs (Fuel, Tires, etc)
– Standard Vehicles (i.e. HDM-4 √ )
– Congestion (i.e. HDM-4 √ ) – Accident Costs – Value of Time (Congestion)
n And Then !!!
AMS Software - Data Management
Roughness Rut Depth Macro Texture Cracking Ravelling Video
Surface Friction
Structural Strength
Centralised Database
Traffic
Bridge
DGPS
Unit Costs
Economic Analysis & Optimisation
Road Deterioration & Maintenance Effects
Road User Effects
Centralised Database
Dynamic Segmentation
Uniform Sections
AMS Software - Life Cycle Modelling
Condition Surveys
SANRAL AMS Budgeting Procedure
Instrumental Data
CBA
Priority List
PMS RDME
RUE
Bridge Inspections
BMS BDME
RUE
CBA
Priority List
Traffic
Projected Total Volume (Sites)No. America Europe Asia-Pacific Government Total
Sm. Systems 12,000 6,600 2,100 3,000 23,700Med. Systems 6,200 3100 560 950 10,810Lg. Systems 2,650 1850 180 400 5,080Total 20,850 11,550 2,840 4,350 39,590
Projected Total Revenue (billions of $)No. America Europe Asia-Pacific Government Total
Sm. Systems $1.12 $0.62 $0.20 $0.28 $2.21Med. Systems $1.59 $0.80 $0.14 $0.24 $2.78Lg. Systems $1.80 $1.26 $0.12 $0.27 $3.46Total $4.52 $2.67 $0.46 $0.80 $8.45
Super Project List
Budget Optimisation Projected Total Volume (Sites)
No. America Europe Asia-Pacific Government TotalSm. Systems 12,000 6,600 2,100 3,000 23,700Med. Systems 6,200 3100 560 950 10,810Lg. Systems 2,650 1850 180 400 5,080Total 20,850 11,550 2,840 4,350 39,590
Projected Total Revenue (billions of $)No. America Europe Asia-Pacific Government Total
Sm. Systems $1.12 $0.62 $0.20 $0.28 $2.21Med. Systems $1.59 $0.80 $0.14 $0.24 $2.78Lg. Systems $1.80 $1.26 $0.12 $0.27 $3.46Total $4.52 $2.67 $0.46 $0.80 $8.45
Eastern Projected Total Volume (Sites)
No. America Europe Asia-Pacific Government TotalSm. Systems 12,000 6,600 2,100 3,000 23,700Med. Systems 6,200 3100 560 950 10,810Lg. Systems 2,650 1850 180 400 5,080Total 20,850 11,550 2,840 4,350 39,590
Projected Total Revenue (billions of $)No. America Europe Asia-Pacific Government Total
Sm. Systems $1.12 $0.62 $0.20 $0.28 $2.21Med. Systems $1.59 $0.80 $0.14 $0.24 $2.78Lg. Systems $1.80 $1.26 $0.12 $0.27 $3.46Total $4.52 $2.67 $0.46 $0.80 $8.45
Southern Projected Total Volume (Sites)
No. America Europe Asia-Pacific Government TotalSm. Systems 12,000 6,600 2,100 3,000 23,700Med. Systems 6,200 3100 560 950 10,810Lg. Systems 2,650 1850 180 400 5,080Total 20,850 11,550 2,840 4,350 39,590
Projected Total Revenue (billions of $)No. America Europe Asia-Pacific Government Total
Sm. Systems $1.12 $0.62 $0.20 $0.28 $2.21Med. Systems $1.59 $0.80 $0.14 $0.24 $2.78Lg. Systems $1.80 $1.26 $0.12 $0.27 $3.46Total $4.52 $2.67 $0.46 $0.80 $8.45
Northern Projected Total Volume (Sites)
No. America Europe Asia-Pacific Government TotalSm. Systems 12,000 6,600 2,100 3,000 23,700Med. Systems 6,200 3100 560 950 10,810Lg. Systems 2,650 1850 180 400 5,080Total 20,850 11,550 2,840 4,350 39,590
Projected Total Revenue (billions of $)No. America Europe Asia-Pacific Government Total
Sm. Systems $1.12 $0.62 $0.20 $0.28 $2.21Med. Systems $1.59 $0.80 $0.14 $0.24 $2.78Lg. Systems $1.80 $1.26 $0.12 $0.27 $3.46Total $4.52 $2.67 $0.46 $0.80 $8.45
Western
Programming Programming Programming Programming
Pavement Management System Bridge Management System
AMS - Information Sharing
1,000s
Data Creators
Data Users
Data Viewers 100s
10s
Information Management Technology
Applications (GIS, CAD, PMS)
Central Oracle 11G
RDBMS
Regional Office Users/Viewers
Public Viewers
Consultants/Contractors Users/Viewers
HQ Office Doers/Users/Viewers
Extranet
Internet Intranet
PMS Data Analysis dTIMS/PERS/HDM-4
Data Load IT IS Admin
Data View ITIS
PMS Data View IT IS Pavement
AMS Software - Information Access
SANRAL: Touching Peoples Lives
“Where a road passes,
development follows right on
its heels”
THANK YOU!